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| 无线Ad Hoc网络中基于业务感知的多信道MAC协议(英文) | |
| 引用本文： | 史春光,赵海涛,张少杰,马东堂,魏急波. 无线Ad Hoc网络中基于业务感知的多信道MAC协议(英文)[J]. 中国通信, 2013, 10(4): 88-100. DOI: 10.1109/CC.2013.6506934 |
| 作者姓名： | 史春光 赵海涛 张少杰 马东堂 魏急波 |
| 作者单位： | College of Electronic Science and Engineering, National University of Defense Technolog;Department of Technology, Taiyuan Satellite Launch Center;State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Information System |
| 基金项目： | supported by the National Natural Science Foundation of China under Grant No. 61002032;the Doctoral Fund of Ministry of Education of China under Grant No. 20094307110004 |
| 摘 要： | Existing multi-channel Medium Access Control (MAC) protocols have been demonstrated to significantly increase wireless network performance compared to single channel MAC protocols. Traditionally, the channelization structure in IEEE 802.11 based wireless networks is pre-configured, and the entire available spectrum is divided into subchannels and equal channel widths. In contrast, this paper presents a Traffic-Aware Channelization MAC (TAC-MAC) protocol for wireless ad hoc networks, where each node is equipped with a single half duplex transceiver. TAC-MAC works in a distributed, fine-grai-ned manner, which dynamically divides variable-width subchannels and allocates subchannel width based on the Orthogonal Frequency Division Multiplexing (OFDM) technique according to the traffic demands of nodes. Simulations show that the TAC-MAC can significantly improve network throughput and reduce packet delay compared with both fixed-width multi-channel MAC and single channel 802.11 protocols, which illustrates a new paradigm for high-efficient multi-channel MAC design in wireless ad hoc networks. |
| 关 键 词： | wireless ad hoc networks multi-channel MAC TAC IEEE 802.11 |
| 收稿时间： | 2013-04-17; |
Traffic-Aware Channelization Medium Access Control for Wireless Ad Hoc Networks |
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| SHI Chunguang,ZHAO Haitao,ZHANG Shaojie,MA Dongtang,WEI Jibo. Traffic-Aware Channelization Medium Access Control for Wireless Ad Hoc Networks[J]. China Communications, 2013, 10(4): 88-100. DOI: 10.1109/CC.2013.6506934 | |
| Authors: | SHI Chunguang ZHAO Haitao ZHANG Shaojie MA Dongtang WEI Jibo |
| Affiliation: | 1College of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China 2Department of Technology, Taiyuan Satellite Launch Center, Taiyuan 030027, China 3State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Information System, Changsha 410073, China |
| Abstract: | Existing multi-channel Medium Access Control (MAC) protocols have been demon-strated to significantly increase wireless network performance compared to single channel MAC protocols. Traditionally, the channelization structure in IEEE 802.11 based wireless networks is pre-configured, and the entire available spectrum is divided into sub- channels and equal channel widths. In contrast, this paper presents a Traffic-Aware Channelization MAC (TAC-MAC) protocol for wireless ad hoc networks, where each node is equipped with a single half duplex trans-ceiver. TAC-MAC works in a distributed, fine-grained manner, which dynamically divides variable-width sub-channels and allocates sub- channel width based on the Orthogonal Frequency Division Multiplexing (OFDM) technique according to the traffic demands of nodes. Simulations show that the TAC-MAC can significantly improve network throughput and reduce packet delay compared with both fixed- width mul-ti-channel MAC and single channel 802.11 protocols, which illustrates a new paradigm for high-efficient multi-channel MAC design in wireless ad hoc networks. |
| Keywords: | wireless ad hoc networks multi- channel MAC TAC IEEE 802.11 |
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