IEEE 802.16 (WiMAX) Mesh Mode
- 최초 등록일
- 2009.06.07
- 최종 저작일
- 2009.05
- 33페이지/
MS 파워포인트
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소개글
보통 WiMAX 라고 불리는 IEEE 802.16의 Mesh Mode의 동작을 정리하였습니다.
이는 WiBro와 연계된 IEEE 802.16d/e의 초기 형태로써
관련 공부를 하는 분들에게 도움이 될 것입니다.
주요 내용은 IEEE 802.16 계열의 흐름과
간단한 PMP모드 설명이후
Mesh 모드 동작을 노드의 진입 순서로 정리하였습니다.
목차
- Introductions
- PHY and MAC layer
- PMP Mode in IEEE 802.16 WiMAX
- Mesh Mode in IEEE 802.16 WiMAX
- Current State of the Art and Open Issues
- Appendix : WiBro
본문내용
HIPERMAN
Band : 2~11 GHz /
IEEE 802.16a
Band : 2~11 GHz / Throughput : ~75Mbps / Range : ~50Km
WiBro
Band : 2.3 GHz / Throughput : 30~50Mbps / Range : 1~5Km
Introduction
IEEE 802.16
802.16.1
Defined the PMP mode
Addressed the LOS problem employing OFDM with 10~66GHz
802.16.2
Minimized the interference between coexisting WMAN systems
802.16a (Jan. 2003)
Introduce the mesh mode
Support the NLOS capability / 2~11GHz
Data Rate : ~75Mbps / Range : ~50Km
802.16d
All the aforementioned versions serving the fixed BWA and their characteristics were incorporated
802.16e
Support the Mobility Capacity (Seamless Handover Operation)
In PMP and Mesh modes.
Introduction
IEEE 802.16a
PMP Mode
Initially defined in IEEE 802.16.1
Similar with Cellular Networks
The BS has the role to coordinate and relay all communications
Mesh Mode
Mesh BS : the nodes to connect the mesh network to the external backhaul
Mesh SS : the other nodes
No separate DL and UL
Contents
Introductions
PHY and MAC layer
PHY Modes with MACs
Adaptive Modulation and Coding (AMC)
PMP Mode in IEEE 802.16 WiMAX
Mesh Mode in IEEE 802.16 WiMAX
Current State of the Art and Open Issues
WiBro
PHY and MAC layer
PHY Modes with MACs
WMAN-SCa
Single Carrier modulation
WMAN-OFDM
256-carrier OFDM modulation with TDMA
Suitable to mesh mode (WiMAX forum)
Less strict requirement for frequency synchronization
Fewer fast fourier transforms (FFTs)
WMAN-OFDMA
참고 자료
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