Neighbor-Medium-Aware MAC Protocol with Fairness for Wireless Ad Hoc Networks(Wireless Communication Technologies)
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概要
- 論文の詳細を見る
The unfairness problem among TCP connections has been proved to be very severe in the IEEE 802.11-based wireless ad hoc networks because the hidden station problem still exists and the binary exponential backoff algorithm always favors the latest successful station. In this paper, a novel protocol, neighbor-medium-aware MAC (NEMA-MAC), is proposed to improve the TCP fairness. By adding a medium (channel) state field in the head of the traditional IEEE 802.11 MAC frame, the NEMA-MAC protocol provides a communication mechanism to resolve the hidden station problem. In addition, when a collision occurs, the new backoff algorithm makes the senders cooperatively adjust the contention window according to their local and neighbors' channel usage indexes. The simulation results show that TCP sessions can acquire satisfying fairness and increase the throughput in the NEMA-MAC-based multihop ad hoc networks.
- 社団法人電子情報通信学会の論文
- 2004-09-01
著者
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REN Yong
Department of Electronic Engineering, Tsinghua University
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ZHANG Lin
Department of Physics, Shandong University
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Ren Yong
Electronic Engineering Department Tsinghua University
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Ren Yong
Department Of Electronic Engineering Tsinghua University
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SHAN Xiuming
Department of Electronic Engineering, Tsinghua University
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Ren Yong
Electronics Engineering Department Of Tsinghua University
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Ma Zhengxin
Department Of Electronic Engineering Tsinghua University
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Zhang L
Department Of Electronic Engineering Tsinghua University
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Shan Xiuming
Department Of Electronic Engineering Tsinghua University
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Shan Xiuming
Electronic Engineering Department Tsinghua University
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XIAO Yongkang
Department of Computer Science, Beijing Normal University
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Xiao Yongkang
Department Of Electronic Engineering Tsinghua University
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Zhang Lin
Department Of Biochemistry And Molecular Biology Nihon University School Of Dentistry At Matsudo
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Shan Xiuming
Department Of Electronic Engineering Of Tsinghua University
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Ren Yong
Department Of Electronic Engineering Of Tsinghua University
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