標題: Release-time-based multi-channel MAC protocol for wireless mesh networks
作者: Jeng, Andy An-Kai
Jan, Rong-Hong
Li, Chi-Yu
Chen, Chien
資訊工程學系
Department of Computer Science
關鍵字: Wireless mesh network;Multi-channel multi-interface;Medium access control;Channel selection
公開日期: 23-六月-2011
摘要: The wireless mesh network (WMN) has been considered one of the most promising techniques for extending broadband access to the last mile. In order to utilize multiple channels to increase the throughput in WMNs, a variety of multi-channel MAC (MMAC) protocols have been proposed in the literature. In particular, the dedicated control channel (DCC) approach can greatly simply many design issues in multi-channel environments by using a common control channel to exchange control signals. On the other hand, it allows each sender-receiver pair to dynamically select a data channel for their data transmission in an on-demand matter. However, the common control channel would become a bottleneck of the overall performance. Besides, the selection of data channels would be highly related to the final throughput. In this paper, we propose a new MMAC protocol, named the release-time-based MMAC (RTBM) to overcome the control channel bottleneck and data channel selection problems in the DCC approach. The RTBM consists of three major components: (1) Control initiation-time predication (CIP); (2) Dynamic data-flow control (DDC); (3) Enhanced channel selection (ECS). The CIP can predict a proper initiation time for each control process to reduce control overhead. The DDC can dynamically adjust the flow of each data transmission to fully exploit the channel bandwidth. The ECS can achieve a higher reusability of data channels to further enhance the throughput. Simulation results show that the RTBM can substantially improve the throughput in both single-hop and multihop networks. (C) 2011 Elsevier B.V. All rights reserved.
URI: http://dx.doi.org/10.1016/j.comnet.2011.02.017
http://hdl.handle.net/11536/22464
ISSN: 1389-1286
DOI: 10.1016/j.comnet.2011.02.017
期刊: COMPUTER NETWORKS
Volume: 55
Issue: 9
起始頁: 2176
結束頁: 2195
顯示於類別:期刊論文


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  1. 000291837200012.pdf