| 一种基于IEEE802.11的无线自组网MAC协议 |
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| 引用本文： | 李晓峰,鄢楚平.一种基于IEEE802.11的无线自组网MAC协议[J].计算机应用,2007,27(2):275-277. |
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| 作者姓名： | 李晓峰 鄢楚平 |
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| 作者单位： | 华北计算技术研究所通信与移动计算技术研究室 北京100083 |
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| 摘 要： | 基于IEEE802.11DCF提出了一种应用于无线自组网的媒质接入控制协议，该协议包括网络适应性退避算法和拥塞反馈两个关键机制。协议的主要思想是根据节点周围实际竞争状况和网络拥塞情况进行包调度。仿真结果表明，提出的机制有效地降低了平均端到端时延和数据丢包率,提高了信道接入公平性。
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| 关 键 词： | 媒质接入控制 分布式协调功能 退避算法 拥塞反馈 |
| 文章编号： | 1001-9081（2007）02-0275-03 |
| 收稿时间： | 2006-09-01 |
| 修稿时间： | 2006-09-042006-11-02 |
MAC protocol for wireless Ad hoc network based on IEEE802.11 |
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| LI Xiao-feng,YAN Chu-ping.MAC protocol for wireless Ad hoc network based on IEEE802.11[J].journal of Computer Applications,2007,27(2):275-277. |
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| Authors: | LI Xiao-feng YAN Chu-ping |
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| Affiliation: | Communication and Mobile Computing Technology Division, North China Institute of Computing Technology, Beijing 100083, China |
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| Abstract: | Based on the IEEE802.11DCF, a Medium Access Control (MAC) protocol was proposed for wireless ad hoc network. It consisted of two key mechanisms: network adaptive backoff algorithm and congestion feedback mechanism. The main idea of proposed protocol was to schedule packet according to real contention status around the node and network congestion situation. The simulation results show that the proposed scheme can effectively reduce the average end-to-end delay, mitigate packet dropped ratio, and improve fairness of channel access. |
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| Keywords: | Medium Access Control (MAC) distributed coordination function backoff algorithm congestion feedback |
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