1. Mobile Broadband Wireless Access (MBWA) IEEE 802.20 Standard
School of Electrical and Computer Engineering
University of Tehran
Class Presentation for the Course:
“Custom Implementation of DSP Systems”
Mobile Broadband Wireless Access (MBWA)
IEEE Standard
By:
Reza Nakhjavani
Instructor:
Prof. S. M. Fakhraei
May 2010
All Materials are Copyrights of Their Respective Authors as Listed in References

2. Overview Introduction 802.16 802.20 802.20 PHY Layer
802.16e vs
Intel® WiMAX Connection 2250
Summary
References

3. Introduction
Importance of accessing data and information in today’s life.
Network protocols such as Wi-Fi (802.11) and WiMAX (802.16) have been developed for such applications.
Need for these information services under fully mobile conditions and in vehicular speeds has increased.
IEEE standard(Mobile-Fi), has been developed for mobile applications in speeds of up to 250 km/h.
1)Wireless Infrastructure: Explain what wireless world today looks like, mobile wireless technologies and protocols, like the ,802.20, etc.
2)Mobile broadband wireless access protocols:
Requirement, specifications, devices and applications using mobile wireless access. Protocols explanation, status of deployment, level of application etc.
3) :
4) Vs :
5) : What is ,its specifications, purpose
Traffic models :
6) Slides discussing the tutorials for MBWA and in turn their protocols. (useful)
[1]

4. Introduction The Wireless Space [3]
1)Wireless Infrastructure: Explain what wireless world today looks like, mobile wireless technologies and protocols, like the ,802.20, etc.
2)Mobile broadband wireless access protocols:
Requirement, specifications, devices and applications using mobile wireless access. Protocols explanation, status of deployment, level of application etc.
3) :
4) Vs :
5) : What is ,its specifications, purpose
Traffic models :
6) Slides discussing the tutorials for MBWA and in turn their protocols. (useful)
[3]

5. 802.16: Fixed Broadband Wireless Access: Wi-Max
Frequencies from 10 to 66 GHz
Time Division Duplex and Frequency Division Duplex configurations are supported
Bandwidth
75 Mbps of bandwidth for 2 to 3 miles.
Uplink : TDMA , DAMA
Downlink: TDM
1)Wireless Infrastructure: Explain what wireless world today looks like, mobile wireless technologies and protocols, like the ,802.20, etc.
2)Mobile broadband wireless access protocols:
Requirement, specifications, devices and applications using mobile wireless access. Protocols explanation, status of deployment, level of application etc.
3) :
4) Vs :
5) : What is ,its specifications, purpose
Traffic models :
6) Slides discussing the tutorials for MBWA and in turn their protocols. (useful)
[2]

6. 802.16: Fixed Broadband Wireless Access: Wi-Max
Architecture :
1)Wireless Infrastructure: Explain what wireless world today looks like, mobile wireless technologies and protocols, like the ,802.20, etc.
2)Mobile broadband wireless access protocols:
Requirement, specifications, devices and applications using mobile wireless access. Protocols explanation, status of deployment, level of application etc.
3) :
4) Vs :
5) : What is ,its specifications, purpose
Traffic models :
6) Slides discussing the tutorials for MBWA and in turn their protocols. (useful)
[6]

7. 802.16: Fixed Broadband Wireless Access: Wi-Max
IEEE e
Providing true mobile broadband connectivity.
Designed to support bands in the range 2 – 6GHz.
Uses Scalable OFDMA to carry data
Channel bandwidths :1.25 MHz~20MHz, with up to 2048 sub-carriers
Adaptive modulation
Good Signal : 64 QAM
Intermediate Signal: 16 QAM & QPSK
Poor Signal : BPSK
Good NLOS (Non-line-of-sight) characteristics
1)Wireless Infrastructure: Explain what wireless world today looks like, mobile wireless technologies and protocols, like the ,802.20, etc.
2)Mobile broadband wireless access protocols:
Requirement, specifications, devices and applications using mobile wireless access. Protocols explanation, status of deployment, level of application etc.
3) :
4) Vs :
5) : What is ,its specifications, purpose
Traffic models :
6) Slides discussing the tutorials for MBWA and in turn their protocols. (useful)
[2]

8. 802.20
Development needed to protocol.
Aims basically at throughput than mobility.
is developed to cover the mobility part of the
allow the creation of low-cost, always-on, and truly mobile broadband wireless networks.
Bandwidths of 5, 10, and 20 MHz
Peak data rates of 80 Mbit/s.
1)Wireless Infrastructure: Explain what wireless world today looks like, mobile wireless technologies and protocols, like the ,802.20, etc.
2)Mobile broadband wireless access protocols:
Requirement, specifications, devices and applications using mobile wireless access. Protocols explanation, status of deployment, level of application etc.
3) :
4) Vs :
5) : What is ,its specifications, purpose
Traffic models :
6) Slides discussing the tutorials for MBWA and in turn their protocols. (useful)
[7]

9. 802.20 PHY Layer PHY layer specs
duplex modes : Time Division Duplex (TDD) , Frequency Division Duplex (FDD)
multi-carrier modes: On , Off
Modulation : OFDM with QPSK, 8PSK, 16QAM, and 64QAM
1)Wireless Infrastructure: Explain what wireless world today looks like, mobile wireless technologies and protocols, like the ,802.20, etc.
2)Mobile broadband wireless access protocols:
Requirement, specifications, devices and applications using mobile wireless access. Protocols explanation, status of deployment, level of application etc.
3) :
4) Vs :
5) : What is ,its specifications, purpose
Traffic models :
6) Slides discussing the tutorials for MBWA and in turn their protocols. (useful)
[2]

10. 802.20 PHY Layer Transmitter [4]
1)Wireless Infrastructure: Explain what wireless world today looks like, mobile wireless technologies and protocols, like the ,802.20, etc.
2)Mobile broadband wireless access protocols:
Requirement, specifications, devices and applications using mobile wireless access. Protocols explanation, status of deployment, level of application etc.
3) :
4) Vs :
5) : What is ,its specifications, purpose
Traffic models :
6) Slides discussing the tutorials for MBWA and in turn their protocols. (useful)
[4]

11. 802.20 PHY Layer Transmitter OFDM Numerology [1]
1)Wireless Infrastructure: Explain what wireless world today looks like, mobile wireless technologies and protocols, like the ,802.20, etc.
2)Mobile broadband wireless access protocols:
Requirement, specifications, devices and applications using mobile wireless access. Protocols explanation, status of deployment, level of application etc.
3) :
4) Vs :
5) : What is ,its specifications, purpose
Traffic models :
6) Slides discussing the tutorials for MBWA and in turn their protocols. (useful)
[1]

12. 802.16e vs. 802.20 Standard Parameter 802.16e 802.20 Frequency Band
2-6 GHz
3.5 GHz
Channel Bandwidth
> 5 MHz
< 20 MHz
Transmission Rate
10 – 50 Mbps
> 16 Mbps
Mobility
High-data-rate fixed wireless user with adjunct
mobility service
Fully mobile, high-throughput data user
Mobile Speed
60 kmph
up to 250 kmph
MAC / PHY
Extensions to a MAC and PHY
New PHY and MAC optimized for
packet data and adaptive antennas
1)Wireless Infrastructure: Explain what wireless world today looks like, mobile wireless technologies and protocols, like the ,802.20, etc.
2)Mobile broadband wireless access protocols:
Requirement, specifications, devices and applications using mobile wireless access. Protocols explanation, status of deployment, level of application etc.
3) :
4) Vs :
5) : What is ,its specifications, purpose
Traffic models :
6) Slides discussing the tutorials for MBWA and in turn their protocols. (useful)
[2]

13. Intel® WiMAX Connection 2250
The Intel WiMAX Connection is compliant with both IEEE and IEEE e-2005 specifications.
1)Wireless Infrastructure: Explain what wireless world today looks like, mobile wireless technologies and protocols, like the ,802.20, etc.
2)Mobile broadband wireless access protocols:
Requirement, specifications, devices and applications using mobile wireless access. Protocols explanation, status of deployment, level of application etc.
3) :
4) Vs :
5) : What is ,its specifications, purpose
Traffic models :
6) Slides discussing the tutorials for MBWA and in turn their protocols. (useful)
[8]

14. Intel® WiMAX Connection 2250 (Specs)
OFDMA 512/1024 PHY mode
Bandwidths: up to 10 MHz
Support for TDD and H/FDD duplexing modes
Concatenated Reed-Solomon and Convolutional
Adaptive modulation (BPSK, QPSK, QAM16, QAM64)
Highly optimized DSP engine with multiple parallel ALUs for concurrent complex operations per cycle, which enables efficient OFDM/OFDMA processing
1)Wireless Infrastructure: Explain what wireless world today looks like, mobile wireless technologies and protocols, like the ,802.20, etc.
2)Mobile broadband wireless access protocols:
Requirement, specifications, devices and applications using mobile wireless access. Protocols explanation, status of deployment, level of application etc.
3) :
4) Vs :
5) : What is ,its specifications, purpose
Traffic models :
6) Slides discussing the tutorials for MBWA and in turn their protocols. (useful)
[8]

15. References
1- A. Jalili, S. M. Fakhraie, and S. Nader-Esfahani, “Performance Evaluation of
IEEE PHY Layer,” (ICCET 2009), Jan 2- 3-
4- WALKER BOLTON, et al,” IEEE :MOBILE BROADBAND WIRELESS
ACCESS”, IEEE Wireless Communications, February 2007
5- Local and Metropolitan Area Networks – Standard Air Interface for Mobile
Broadband Wireless Access Systems Supporting Vehicular Mobility – Physical
and Media Access Control Layer Specification, IEEE Standard , Aug 6- 7- 8-
1)Wireless Infrastructure: Explain what wireless world today looks like, mobile wireless technologies and protocols, like the ,802.20, etc.
2)Mobile broadband wireless access protocols:
Requirement, specifications, devices and applications using mobile wireless access. Protocols explanation, status of deployment, level of application etc.
3) :
4) Vs :
5) : What is ,its specifications, purpose
Traffic models :
6) Slides discussing the tutorials for MBWA and in turn their protocols. (useful)

16. Questions?
1)Wireless Infrastructure: Explain what wireless world today looks like, mobile wireless technologies and protocols, like the ,802.20, etc.
2)Mobile broadband wireless access protocols:
Requirement, specifications, devices and applications using mobile wireless access. Protocols explanation, status of deployment, level of application etc.
3) :
4) Vs :
5) : What is ,its specifications, purpose
Traffic models :
6) Slides discussing the tutorials for MBWA and in turn their protocols. (useful)

17. Thank you
1)Wireless Infrastructure: Explain what wireless world today looks like, mobile wireless technologies and protocols, like the ,802.20, etc.
2)Mobile broadband wireless access protocols:
Requirement, specifications, devices and applications using mobile wireless access. Protocols explanation, status of deployment, level of application etc.
3) :
4) Vs :
5) : What is ,its specifications, purpose
Traffic models :
6) Slides discussing the tutorials for MBWA and in turn their protocols. (useful)