- 講題： A Hybrid Power-Saving Protocol by Dual-Channel and Dual-Transmission-Range Clustering for IEEE 802.11-Based MANETs
- 演講人：江振瑞 教授（國立中央大學 資訊工程學系）
- 時間：2006年12月14日(星期四) 下午02：00 ∼ 04：00
- 地點：推廣教育大樓9326教室
- 茶會：下午01：40資科所辦公室（9213）
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Abstract
There are two types of MAC layer power-saving (PS) protocols for IEEE 802.11-based MANETs: synchronous and asynchronous ones. IEEE 802.11 standard proposes a synchronous PS protocol for single-hop MANETs. The protocol needs accurate clock synchronization and is not suitable for multi-hop MANETs. On the contrary, the asynchronous PS protocol needs no synchronized clocks and is suitable for multi-hop MANETs. However, it usually consumes more energy than the synchronous one. In this talk, I will introduce a hybrid PS protocol, which combines the advantages of synchronous and asynchronous PS protocols for IEEE 802.11 multi-hop MANETs. The protocol utilizes the concept of dual-channel and dual-transmission-range clustering. It divides all the hosts into clusters. Each cluster has a head and all the heads are organized as a virtual backbone to help route data. The synchronous PS protocol is operated in an individual cluster, and the asynchronous PS protocol is operated among cluster heads. Simulation results demonstrate that the protocol is more power-efficient and more scalable than related ones.
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