Research Activities and ongoing
work
February 9th 2011
Mauro Biagi
Outline

Introduction

Goals

Cognitive Radio

UltraWide Band Radio (UWB)

Visible Light Communications (VLC)

Power Line Communications (PLC)

Acoustic Underwater Communications (AUC)

Information Theory and Secrecy

Resource Management for Heterogeneous Networks

Biomedical Engineering
Introduction

“Contamination” is not always bad!

“Contamination” may help especially if human
(students, Ph.D. Students and professors) and/or
between different disciplines

From this, the idea of a medium-short course of
seminars
Goals

Seminars are a good instrument for scientific
cooperation, testing speakers capability and help the
ability to acquire criticism about the own work and
the contributions of colleagues
Ready to Start
Just Started
Ongoing
Cognitive Radio

The point in which wireless personal digital assistants
(PDAs) and the related networks are sufficiently
computationally intelligent about radio resources and
related computer-to-computer communications to detect
user communications needs as a function of use context,
and to provide radio resources and wireless services most
appropriate to those needs (J.Mitola III)
Cognitive Radio

Main activities in this framework are

Spectrum Sensing

Cooperative detection

Spectrum Management

Spectrum Sharing

Spectrum Mobility
Cognitive Radio
Interest in:

Spectrum Sensing
Wigner-Ville Transform of a mono-dim. signal
Image Processing (Edge Detection)
Where
When access occurs
Cognitive Radio
Interest in:

Spectrum Management
Primary users have a higher priority
with respect to secondary ones
UltraWide Band (UWB)

Main activities in this framework are

Symbol Synchronization

Multiple-Access
UltraWide Band (UWB)
Interest in:

Symbol Synchronization
Training sequences can help synchronization
while turbo-scheme can reduce the number
of pulses needed for Sync.
UltraWide Band (UWB)
Interest in:

Multiple-Access
The access to the medium, UWB, is based
on the pulse shape that takes care of
masks, synchro and rate constraints
Visible Light Comm’s
(VLC)

Main activities in this framework are

TX/RX Techniques

Channel modeling

Device design
Cooperation with Boston University
Visible Light Comm’s
(VLC)

TX/RX Techinques
Visible Light Comm’s
(VLC)

TX/RX Techinques:
Transmission rate vs. Reliability
A “New” RAKE with delay spread bounded to help rate
Power Line Comm’s (PLC)

Main activities in this framework are

Interference Rejection

Spectrum Access

Routing

MIMO Schemes
Cooperation with University of British Columbia
Power Line Comm’s (PLC)
Interest in

Interference Rejection
• Delay Spread
• Cross-Talk
• Impulse Noise
Power Line Comm’s (PLC)
Interest in

Spectrum Access
Conventional Approaches are not
PLC-based
Power Line Comm’s (PLC)
Interest in

Routing
Power Line Comm’s (PLC)
Interest in

MIMO Schemes
Spatial Multiplexing
Interference mitigation
Power consumption
Acoustic Underwater Comm’s

Main activities in this framework are

Channel Equalization and Coding

Interference Suppression

Spectrum Access
Cooperation with Rutgers University
Acoustic Underwater Comm’s
Interest in:

Channel Equalization and Coding
Acoustic Underwater Comm’s
Interest in:

Interference Suppression
Acoustic Underwater Comm’s
Interest in:

Multiple Access
Inform. Theory and
Secrecy

Main activities in this framework are

To combat Eavesdropping

To avoid malicious access
Inform. Theory and
Secrecy
Interest in

To combat Eavesdropping
In MIMO systems power allocation
can aid secrecy
Resource management in HN

Main activities in this framework are

Vertical Handover

Interoperability
Biomedical Engineering

Main activities in this framework are

Children Sleep Apnea

Analysis of arm’s movement
Biomedical Engineering
Interest in:

Children Sleep Apnea
Cooperation with South Bank University (London)
Biomedical Engineering
Interest in:

Analysis of arm’s movement
Conclusions

This streak of meetings is an experiment!

Next meeting March 1-st (12p.m. with Food!)
Dr.V.Polli: An Image Processing Approach to Distributed
Access for Multiantenna Cognitive Radios