一种无线网状网络的分布式跨层自适应调度算法

2011 International Conference on Control, Automation and Systems Engineering (CASE) Pub Date : 2011-07-30 DOI:10.1109/ICCASE.2011.5997794

Hua Guo, Zhong Zhang, Jian-Huei Guo, Jiansong Zhang

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引用次数: 6

摘要

针对IEEE 802.16 WMN的协调分布式调度问题，提出了一种跨层调度方案DCLASA。该方案在设计MAC层时隙分配算法时考虑了物理层信道质量信息(CQI)，并根据CQI调整节点的保持指数。同时采用多用户分集和自适应调制编码技术提高系统性能。仿真结果表明，DCLASA可以提高网络总吞吐量，降低链路传输延迟。

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A Distributed Cross-Layer Adaptive Scheduling Algorithm for Wireless Mesh Networks

In this paper, we propose a cross-layer scheduling scheme named DCLASA for the coordinated distributed scheduling of IEEE 802.16 WMN. This scheme considers the channel quality information (CQI) in physical layer when designing the timeslot allocation algorithm in MAC layer, and adjusts the node's holdoff exponent according to CQI. Meanwhile multi-user diversity and adaptive modulation and coding technique are adopted to improve system performance. Simulation shows that DCLASA can increase the network total throughput, and reduce link transmission delay.

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来源期刊

2011 International Conference on Control, Automation and Systems Engineering (CASE)

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