chapter 4 pilot symbol assisted channel estimation for cognitive system

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




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        

           
         
          
          
        
           

         
        


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       



           
           

           
           


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          

        

       
       
       



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        

        

          
        
         
          
           
          


           
           


          


     

 
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         

 
            

            
            





        
           

 
         

         



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
 
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











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        
          
            

          


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          


             

           
          
           
           
         
             



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         
          
          
            
           
             
             


            
     


            




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          
         
           
            
           

           
          
           
          
          

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        


           
       


         



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
            

           


             
             
          
        
           
         

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          

         


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      


               


  
            

          



          
           
            



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
          
            

        
       
         
       
            
           

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
           

           

         

         
        
            
            
          

            
  
           
            





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
           

       
          


            


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        
          
            
           
        

         
         
         


          

        
          


     

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

           
            
          
          

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
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
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         
 
                 
  

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


                 
           




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 
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
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  

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

 
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
         

 
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

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
           

           
 

       
            





     

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         

         
          
            




            
       
          
         


       

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
          

           

           
           



 

         

 

         
         

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       
         
           
      

 
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
         
          
       
        

 

         
        
        




      

 

      



 
         
        
        


 
 


        
            

 


 
          

        
          

         
       
         
        
        
         
          


        

        


         

       
       


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




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        
        
        
         



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        

           
         
         
       























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
           
           

             

           
         
           
       
            
         




















 

 



       


             
 
 

            

          











 
 
 
 
 


 
          

         


























         
 


























         
 


          

         

     

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         
























         
 
























         
 


        

           
        
            
          


             
            

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       


           




























 
 

         
    
        























 
 

























 
 






















 
 












 
 









 
 






         
          
         
       


