A cooperative MAC protocol for wireless local area networks
A cooperative MAC protocol for wireless local area networks
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DOI：
10.1109/icc.2005.1494934
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发表时间：
2005-05
期刊：
影响因子：
--
通讯作者：
Pei Liu;Zhifeng Tao;S. Panwar
中科院分区：
文献类型：
--
作者：
Pei Liu;Zhifeng Tao;S. Panwar
在本文中，一个新的想法，在无线网络中的用户合作已被利用，以提高性能的IEEE 802.11媒体访问控制（MAC）协议。新的MAC协议利用IEEE 802.11b的多速率能力，并允许远离接入点（AP）的移动的站（STA）通过使用中间站作为中继来以更高的速率进行传输。新的MAC协议，即CoopMAC I和CoopMAC II的两个具体的变化，介绍了该文件。这两种方法都能提高整个网络的吞吐量，降低平均分组延迟。此外，CoopMAC II还保持与传统802.11协议的向后兼容性。通过分析和大量的模拟进一步评估性能的改善。
In this paper, a novel idea of user cooperation in wireless networks has been exploited to improve the performance of the IEEE 802.11 medium access control (MAC) protocol. The new MAC protocol leverages the multi-rate capability of IEEE 802.11b and allows the mobile stations (STA) far away from the access point (AP) to transmit at a higher rate by using an intermediate station as a relay. Two specific variations of the new MAC protocol, namely CoopMAC I and CoopMAC II, are introduced in the paper. Both are able to increase the throughput of the whole network and reduce the average packet delay. Moreover, CoopMAC II also maintains backward compatibility with the legacy 802.11 protocol. The performance improvement is further evaluated by analysis and extensive simulations.