June, 2011
doc.: IEEE 802.22-11/66r0
Review of 802.15.4 & Comparison with 802.22 Smart
Grid and Critical Infrastructure Monitoring
IEEE P802.22 Wireless RANs
Date: 2011-06-06
Authors:
Name
Company
Address
Phone
email
Chang-Woo Pyo
NICT
Hikarion-Oka,
Yokosuka, Japan
+81-46-8475120
[email protected]
Zhang Xin
NICT
Chunyi Song
NICT
M. Azizur
Rahman
Hiroshi Harada
NICT
NICT
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Submission
Slide 1
Chang-Woo Pyo, NICT
June, 2011
doc.: IEEE 802.22-11/66r0
Abstract
• This review document provides an overview of 802.15.4
Standards that are 802.15.4g, 802.15.4k and 802.15
SG4TV, which may have some relevancies with 802.22
Smart Grid and Critical Infrastructure Monitoring
Study Group
• Also, this provides the example usages for 802.22 Smart
Grid and Critical Infrastructure Monitoring Study
Group, and the differences and similarities between
802.22 and 802.15.4 for smart grid and critical
infrastructure monitoring
Submission
Slide 2
Chang-Woo Pyo, NICT
June 2011
doc.: IEEE 802.22-11/66r0
Title
802.15.4g
IEEE Standard for Local and Metropolitan Area Networks Part 15.4:
Low Rate Wireless Personal Area Networks (LR-WPANs) Amendment:
Physical Layer (PHY) Specifications for Low Data Rate Wireless Smart
Metering Utility Networks
802.15.4k
IEEE Standard for Local and Metropolitan Area Networks - Part 15.4:
Wireless Medium Access Control (MAC) and Physical Layer (PHY)
Specifications for Low Rate Wireless Personal Area Networks (WPANs)
Amendment - Physical Layer (PHY) Specifications for Low Energy,
Critical Infrastructure Monitoring Networks (LECIM)
802.15 SG4TV
Standard for Information Technology - Telecommunications and
Information Exchange Between Systems - Local and Metropolitan Area
Networks - Specific Requirements - Part 15.4: Wireless Medium Access
Control (MAC) and Physical Layer (PHY) Specifications for Low Rate
Wireless Personal Area Networks (WPANs)Amendment: TV White
Space PHY Layer
Submission
Slide 3
Chang-Woo Pyo, NICT
June 2011
doc.: IEEE 802.22-11/66r0
PAR Scope (1/2)
This Standard defines an amendment to IEEE 802.15.4. It addresses principally
outdoor Low Data Rate Wireless Smart Metering Utility Network requirements. It
defines an alternate PHY and only those MAC modifications needed to support
its implementation.
802.15.4g
Specifically, the amendment supports all of the following:
• Operation in any of the regionally available license exempt frequency bands,
such as 700MHz to 1GHz, and the 2.4 GHz band.
• Data rate of at least 40 kbits per second but not more than 1000 kbits per
second .
• Achieve the optimal energy efficient link margin given the environmental
conditions encountered in Smart Metering deployments.
• Principally outdoor communications
• PHY frame sizes up to a minimum of 1500 octets
• Simultaneous operation for at least 3 co-located orthogonal networks
• Connectivity to at least one thousand direct neighbors characteristic of dense
urban deployment
Provides mechanisms that enable coexistence with other systems in the same
band(s) including IEEE 802.11, 802.15 and 802.16 systems
Submission
Slide 4
Chang-Woo Pyo, NICT
June 2011
doc.: IEEE 802.22-11/66r0
PAR Scope (2/2)
802.15.4k
This standard is an amendment to IEEE 802.15.4. It addresses principally those
applications such as critical infrastructure monitoring. It defines an alternate PHY and only
those MAC modifications needed to support its implementation. The amendment
supports: ' *(1) Operation in any of the regionally available licensed, license exempt, and
special purpose frequency bands ' *(2) Simultaneous operation for at least 8 co-located
orthogonal networks ' *(3) Application data rate of less than 40 kbits per second ' *(4)
Propagation path loss of at least 120 dB ' *(5) >1000 endpoints per mains powered
infrastructure ' *(6) Asymmetric application data flow ' *(7) Extreme difference in
capabilities and performance between endpoint devices and coordinating devices
(collectors) ' -coordinator may support all standardized modulations (MCS) and data rates
' -coordinator may be required to support antenna diversity or antenna beam steering ' end point must be able to conserve energy ' *(8) Reliable operation in dramatically
changing environments (no control over environment) This amendment also provides
mechanisms that (9) enable coexistence with other systems in the same band(s) including
IEEE 802.11, 802.15 and 802.16 systems.
802.15
SG4TV
This amendment specifies a physical layer for 802.15.4 meeting TV white space
regulatory requirements and also any necessary MAC changes needed to support this
physical layer. The amendment enables operation in the available TV white space,
supporting typical data rates in the 40 kbits per second to 2000 kbits per second range, to
realize optimal and power efficient device command and control applications. It supports
accepted methods of TV White Space coexistence in existence at the time of
development.
Submission
Slide 5
Chang-Woo Pyo, NICT
June 2011
doc.: IEEE 802.22-11/66r0
PAR Purpose
802.15.4g
To provide a global standard that facilitates very large scale process control
applications such as the utility smart-grid network. This amendment supports
large, geographically diverse networks with minimal infrastructure. Smart
Metering Utility Networks can potentially contain millions of fixed endpoints.
The communication range, robustness, and coexistence characteristics
required for this class of application have not been met with existing 802
standards
802.15.4k
The purpose of this amendment is to facilitate point to multi-thousands of
points communications for critical infrastructure monitoring devices. The
amendment addresses the application's user needs of minimal network
infrastructure, and enables the collection of scheduled and event data from a
large number of non-mains powered end points that are widely dispersed, or
are in challenging propagation environments. To facilitate low energy operation
necessary for multi-year battery life, the amendment minimizes network
maintenance traffic and device wake durations. In addition, the amendment
addresses the changing propagation and interference environments
802.15
SG4TV
Submission
The purpose of this amendment is to allow 802.15.4 wireless networks to take
advantage of the TV white space spectrum for use in large scale device
command and control applications.
Slide 6
Chang-Woo Pyo, NICT
June 2011
doc.: IEEE 802.22-11/66r0
5C
802.15.4g
802.15.4k
802.15 SG4TV
The 802.11: optimized for high data
rates along with support for star
network topologies with centralized
control.
IEEE 802.15.4 will not adequately
support the low energy critical
infrastructure monitoring application
requirements
802.16: optimized for high data rate,
point-to-point
and
point-tomultipoint network topologies,
licensed band, TDM
The current IEEE 802.16 M2M PAR calls
for changes to the MAC, and no
substantial change to its PHY. it will not
meet the large path loss, minimal
infrastructure requirements, and multiyear battery life required by LECIM
applications.
There are no other IEEE
802 projects, utilizing
unused TV channels,
specifically addressing
low data rate operation
optimized for use in
device command and
control applications.
Broad Market Potential
Compatibility
Distinct Identity
The 802.15.4: support frame sizes
of 1500 bytes in length and error
detection of a two byte CRC
802.15.4g (WNAN) requirements :
low data rate (40kbps), unlicensed
band, burst and asynchronous
upstream traffic, star-topology as
well as peer-to-peer
IEEE 802.22 is intended to provide
broadband services to rural subscribers,
which does not address the need for
multiyear battery life.
IEEE 802.11 is designed for higher data
rates which limit both range and battery
life to less than that required by LECIM
applications.
Technical Feasibility
Submission
Economic
Feasibility
Slide 7
Chang-Woo Pyo, NICT
June 2011
doc.: IEEE 802.22-11/66r0
Usages
802.15.4g
• Meter Reading in
Japan
• Outdoor Control &
Monitoring
• Infrastructure Asset
Management
• Smart Grid EcoSystem
• Water & Sewerage
Management
802.15.4k
Infrastructure Monitoring
•Water leak detection
•Sewer monitoring
•Bridge/structural integrity monitoring
•Streetlight control systems
•Fault Circuit Indicators
•Soil monitoring
•Oil & gas pipeline monitoring
Transportation & Asset
tracking
•Public transport tracking
•Cargo container monitoring
•Railroad condition monitoring
•Traffic congestion monitoring
Security & Life Safety
•Gas/hazardous material detection
•Perimeter security
•Border surveillance
•Medical alert for at-risk populations
•First responder tracking
Submission
Slide 8
802.15 SG4TV
802.22 New SG
• Utility smart grid
networks
• Utility monitoring
and control
• Mobile utility control
and data collection
•(a) Regional Area Smart
Grid/Metering:
support Low Energy &
Complexity CPEs
•(b) Emergency
Temporary Broadband
Infrastructure :
Ad hoc connecting
among portable CPEs
•(c) Critical
Infrastructure/Hazard
Monitoring:
Support very large
number of monitoring
CPEs
•(d) Remote Medical
Service:
Support remote medical
service with high QoS in
a rural residence area
Chang-Woo Pyo, NICT
June 2011
doc.: IEEE 802.22-11/66r0
Summary – Review, Differences and Similarities
802.15.4g
802.15.4k
802.15 SG4TV
802.22 New SG
• PHY Amendment
• PHY Amendment
• PHY Amendment
• PHY and MAC Amendment
• License-exempt
(700MHz~1GHz, 2.4GHz)
• Licensed, License-exempt,
Any frequency to attempt
• TVWS frequency
TVWS frequency
• Smart Utility Network
• Critical Infrastructure
Sensing, Monitoring
• Command and control
application
• Sensors / Meters
• ITS
•Regional area smart
grid/metering
•Emergency broadband
•Critical Infrastructure/Hazard
monitoring
•Remote medical service
• WPAN, Neighbor Area
Network (NAN)
• WPAN
•WPAN
•WRAN (Several tens of Km,
20~30Km)
1
Amendment
2
Operating
Frequency
3
Usage
4
Coverage
5
Transmission
Power
• Less power consumption
(up to 1W some regulatory
domain)
• Low energy transmission
?
• Fixed high power (4W) in US,
• Portable/Mobile Power
(100mW, 40mW) in US
6
Transmission
Rate
> 40Kbps
< 1000Kbps
• Less than 40kbps
> 40Kbps
< 2000Kbps
From several kbps (one stream)
to several Mbps (multi-streams)
7
Network
topology
• Peer-to-multihop peer
• Point-to-multipoint (star)
• Point-to-Multipoints
• Star, Peer-to-Peer
?
• Infrastructure Mode,
• Point-to-Multipoints,
• Support peer-to-peer
connection
8
Available
Devices
• a large number of outdoor
devices (>1000 devices)
> 1000 devices
?
More than 256
9
Coexistence
• 11, 15, 16 coexistence
• 11, 16, 15 coexistence
11af, 22 coexistence
11af, 15 4TV coexistence
10
else
-
-
TVDB Channel Access,
Geolocation
TVDB Channel Access,
Geolocation
Submission
Slide 9
Chang-Woo Pyo, NICT
June, 2011
doc.: IEEE 802.22-11/66r0
Conclusion
•
As amendment for 802.22, 802.22 New SG
– consider to support low energy consumption and complexity CPEs
– considers to support ad hoc connection (such as peer-to-peer connection, multi-hop
connection) among portable CPEs for emergency broadband infrastructure
– considers to support very large number of CPEs with low energy and complexity
for monitoring a regional area
– considers to support high reliability and QoS for critical applications such as
medical service, hazard monitoring, etc
•
Comparing to 802.15.4, uniqueness of 802.22 New SG
– is able to provide a very large service area and support a very large number of
devices effectively
– is able to provide a variable power level from low to high depending on the
capability of CPE, which adopts usage applications efficiently
– is able to provide a variable data rate from low to high depending on usages
(Network backhaul – Several Mbps, Meter/Monitoring – Several Kbps)
– is able to extend a current 802.22 STD easily and efficiently to smart grid
applications on TV white space frequency
Submission
Slide 10
Chang-Woo Pyo, NICT
June 2011
doc.: IEEE 802.22-11/66r0
References
• 802.15.4g PAR
• 802.15.4k PAR
• 802.15 SG4TV PAR
Submission
Slide 11
Chang-Woo Pyo, NICT