1. IEEE P802.22 Wireless RANs Date: 2011-06-13
Month Year
doc.: IEEE yy/xxxxr0
June 2011
Review of & Comparison with Smart Grid and Critical Infrastructure Monitoring
IEEE P Wireless RANs Date:
Authors:
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Xin Zhang, NICT
John Doe, Some Company

2. Month Year
doc.: IEEE yy/xxxxr0
June 2011
Abstract
This document provides an overview of standards on PAR, 5C, usage models and technical aspects, which may have some relevance with Smart Grid and Critical Infrastructure Monitoring Study Group.
Also, this document provides comparison between and for smart grid and critical infrastructure monitoring.
Xin Zhang, NICT
John Doe, Some Company

3. June 2011
Title
802.16n
(Task Group)
IEEE Standard for Local and Metropolitan Area Networks Part 16: Air Interface for Broadband Wireless Access System Amendment: Great Reliability In Degraded Metropolitan Area Network (GRIDMAN)
802.16p
IEEE Standard for Local and Metropolitan Area Networks - Part 16: Air Interface for Broadband Wireless Access System Amendment – Machine to Machine Communication
Xin Zhang, NICT

4. June 2011
PAR Scope
802.16n
This amendment specifies protocol enhancements to the IEEE MAC for enabling increased robustness and alternate radio path establishment in degraded network conditions. Limited OFDMA PHY extensions are included for enabling operation with radio path redundancy and direct communication between subscriber stations. Also mobile base stations and mobile relay stations are supported. Operation in licensed, unlicensed and lightly licensed spectrum bands below 6 GHz with means and mechanisms to coexist with other radio access technologies (RATs) is supported. Support for enabling application specific specialized security suites is also provided.
802.16p
This amendment specifies IEEE Std medium access control (MAC) enhancements and minimal OFDMA PHY modifications to provide functionalities for efficient Machine to Machine communication. The enhancements are lower power consumption at the subscriber station, support by the base station of significantly larger numbers of devices, and efficient support for small burst transmissions. This amendment provides continuing support for WirelessMAN-Advanced Air Interface (802.16m) and legacy WirelessMAN-OFDMA equipment.
This standard is based on m
Definition of Machine to Machine Communication:
 This is information exchange between Subscriber stations or between a Subscriber station and a Server in the core network through a Base Station that may be carried out without any human interaction.
Xin Zhang, NICT

5. 5C and Functional Requirement
June 2011
5C and Functional Requirement
802.16n
802.16p
Distinct Identity
Aims to provide great reliability and increased robustness.
(Robustness: The capability of the network to withstand and automatically recover from degradation to provide the required availability to support mission critical applications (essential to the core function of society and the economy). E.g. the ability to recover from a single point of failure)
Support multi-mode operation
Support standalone network
Support multi-hop relaying
Support source and sink of data at Relay station
Support MS-Ms direct communication
Support path discovery and management
Support heavy uplink data services
Enhanced unicast and multicast services
Support mobile base station
Machine to Machine communication
Low power consumption at the subscriber station
Handling a very large number of devices
Small burst transmission
Xin Zhang, NICT

6. Usage Models June 2011 802.16n 802.16p 802.22 New SG Device Monitoring
Security and public safety
Public Safety,
Avionics,
Airport Surface Communication,
Maritime Safety,
Surveillance applications
Support communication with high reliability in Smart Grid application
Device Monitoring
Smart metering
Automated services on consumer devices
retail digital signage management
Transportation & Asset tracking
Tracking
Vehicular Telematics
Security & Safety & Health Care
Secured access and surveillance
Public safety sensors
Healthcare monitoring of bio-sensors
Remote maintenance and control
(a) Regional Area Smart Grid/Metering:
support Low Complexity CPEs
(b) Critical Infrastructure/Hazard Monitoring:
Support very large number of monitoring CPEs
(c) Smart Traffic Management and Communication
Real time monitoring, low latency
(d) Rural farm house and agricultural monitoring
Support remote monitoring with relaxed latency requirement, supports interface with sensors monitoring environmental factors, live stock behavior etc,
(e) Emergency Temporary Broadband Infrastructure :
Ad hoc connecting among portable CPEs
(f) Remote Medical Service:
Support remote medical service with high QoS in a rural residence area
(g) Combined Smart Grid and Broadband Service
Support CPEs with multiple operation modes [eg. low and high capabilities
Xin Zhang, NICT

7. Summary – Review, Differences and Similarities
June 2011
Summary – Review, Differences and Similarities
802.16n
802.16p
New SG 1
Amendment
MAC Amendment, limited PHY
PHY and MAC Amendment 2
Operating Frequency
licensed, unlicensed and lightly licensed spectrum bands below 6 GHz
licensed band
RF frequencies less than 6 GHz
TVWS frequency 3
Operating bandwidth
Scalable bandwidths from 5 to 40 MHz
Single or multiple RF carrier
6/7/ 8 (Intend to support channel aggregation, e.g. 12/14/16 and 24/28/32) 4
Coverage
WMAN (several of km)
WRAN (Several tens of Km, 20~30Km) 5
Transmission Power
Low power consumption at the subscriber station
Fixed high power (4W) in US, Portable/Mobile Power (100mW, 40mW) in US.
Base station (500W) in Canada, user terminal (4W) in Canada. 6
Transmission Rate
High data rate
Support efficient transmission of small burst sizes
From several kbps (one stream) to several Mbps (multi-streams) 7
Network topology
Tree topology
Support Multi-hop relay
point-to-point
point-to-multipoint
Infrastructure Mode,
Point-to-Multipoints,
Support peer-to-peer connection 8
Available Devices
More than 1000 devices
More than 512 9
Coexistence 16
Does not apply
802 standards in TVWS that will be completed by the day
Xin Zhang, NICT

8. Summary - Technical Comparison
June 2011
( )
(802.22D3-redline)
Comment on the comparison from the perspective of New SG
Frequency range
Below 11 GHz for licensed band
MHz for unused TV channel
TVWS band and
compliances to regulation for its usage are the key differences
Multiple Access
OFDMA, OFDM, SC
OFDMA
OFDMA guarantees efficient management of large number of device
FFT size
2048
1024
512
256
128
has higher data throughput for comparable bandwidth
Intend to support higher throughput by channel aggregation, e.g.
Bandwidth(MHz) 20 10 5
2.5
1.25 6 7 8
12, 14, 16
24,28,32
Maximum Data Throughput (Mbit/s) 40
22.69
45.38
90.76
Subcarrier frequency spacing (KHz) 11
3.3
3.9
4.5
is more robust to frequency selective fading
Cyclic Prefix Duration (μsec)
11.4
Up to 75
is more robust to spread delay.
- It is optimized to support long range
Subcarrier Mapping
2-dimentional
Linear
22 has enhanced coexistence techniques
Xin Zhang, NICT

9. Example Application Scenario
RA smart grid and critical infrastructure monitoring application will be complimentary to other short range applications at the users’ end
We may have different types of CPEs in new SG
Currently CPEs can not communicate to each other. We need this capability
Improved broadband service by using wider bandwidth through channel aggregation
Xin Zhang, NICT

10. June 2011
Conclusion (1/2)
Comparing to , uniqueness of New SG
is able to provide services related to smart grid application in TV whitespace.
is able to provide services related to smart grid application for a larger coverage area.
is able to meet the requirement of TVWS operation such as Database access.
is able to provide enhanced robustness in dealing with delay spread as well as frequency selective fading, this is good for long range communication.
is able to provide inexpensive implementation due to single FFT mode and linear sub-channel assignment.
Xin Zhang, NICT

11. Conclusion (2/2) June 2011 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
considers to support real time monitoring system with low latency.
considers CPEs with multiple operation modes [eg. low and high capabilities]
considers supporting interface with various sensors
supports higher data rate by channel aggregation
Xin Zhang, NICT

12. References 802.16p PAR 802.16n PAR 802.16m PAR June 2011
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13. Appendix (1/2) Title June 2011
802.16m
(Completed)
IEEE standard for Local and Metropolitan area networks - Part 16: Air Interface for Broadband Wireless Access System Amendment - Advance Air Interface
802.16j
IEEE Standard for Local and Metropolitan Area Networks - Part 16: Air Interface for Broadband Wireless Access System Amendment – Multihop Relay Specification
Xin Zhang, NICT

14. Appendix (2/2) PAR Scope June 2011
802.16m
This standard amends the IEEE WirelessMAN-OFDMA specification to provide an
advanced air interface for operation in licensed bands. It meets the cellular layer requirements of IMT-Advanced next generation mobile networks. This amendment provides continuing support for legacy WirelessMAN-OFDMA equipment.
The purpose of this standard is to provide performance improvements necessary to support future advanced services and applications, such as those described by the ITU in Report ITU-R M.2072.
Xin Zhang, NICT