| 无线传感器网络中的逐跳跨层拥塞控制 |
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| 引用本文： | 吴国伟,张岩. 无线传感器网络中的逐跳跨层拥塞控制[J]. 计算机工程, 2010, 36(16): 108-109 |
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| 作者姓名： | 吴国伟 张岩 |
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| 作者单位： | 大连理工大学软件学院,大连,116621 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 给出一种逐跳跨层拥塞控制机制，依据检测缓冲区占用率和拥塞度所获得的拥塞信息，在传输层开环逐跳速率控制的基础上，自适应地调整节点MAC层信道接入优先级，使整个传感器网络中的节点根据局部的拥塞状态调整信息发送速率。NS2仿真结果表明，该算法可有效地提高网络性能和拥塞控制效率。
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| 关 键 词： | 无线传感器网络 跨层控制 信道接入优先级 拥塞检测 拥塞控制 |
Hop-by-Hop Cross-layer Congestion Control in Wireless Sensor Network |
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| WU Guo-wei,ZHANG Yan. Hop-by-Hop Cross-layer Congestion Control in Wireless Sensor Network[J]. Computer Engineering, 2010, 36(16): 108-109 |
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| Authors: | WU Guo-wei ZHANG Yan |
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| Affiliation: | (Software College, Dalian University of Technology, Dalian 116621) |
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| Abstract: | This paper proposes a hop-by-hop cross-layer congestion control algorithm, according to detecting buffer occupancy ratio and congestion degree. This algorithm adaptively adjusts channel access priorities in MAC layer based on open loop hop-by-hop rate control. It can adaptively adjust the information sending rate according to local congestion condition of network nodes. NS simulation results show that the algorithm can improve network performance and congestion control efficiency. |
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| Keywords: | Wireless Sensor Network(WSN) cross-layer control channel access priority congestion detection congestion control |
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