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arXiv 1003.1364cs.NImath.PR
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无线网络中高效CSMA算法的设计

On the Design of Efficient CSMA Algorithms for Wireless Networks

Javad Ghaderi, R. Srikant

摘要:

最近,它已被证明,CSMA算法,使用基于队列长度的链路权重可以实现吞吐量最优的无线网络。特别是,Rajagopalan,Shah和Shin(2009)的一个关键结果表明,如果链路权重被选择为log(log(q))的形式(其中q是队列长度),则可以实现吞吐量最优。在本文中,我们收紧他们的结果表明,吞吐量最优性保持甚至与形式log(q)/g(q)的权重函数,其中g(q)可以是一个函数,增加任意缓慢。结果的重要性是由于log(q)/g(q)形式的权重函数在实践中似乎实现了最佳延迟性能。

英文摘要:

Recently, it has been shown that CSMA algorithms which use queue length-based link weights can achieve throughput optimality in wireless networks. In particular, a key result by Rajagopalan, Shah, and Shin (2009) shows that, if the link weights are chosen to be of the form log(log(q)) (where q is the queue-length), then throughput optimality is achieved. In this paper, we tighten their result by showing that throughput optimality is preserved even with weight functions of the form log(q)/g(q), where g(q) can be a function that increases arbitrarily slowly. The significance of the result is due to the fact that weight functions of the form log(q)/g(q) seem to achieve the best delay performance in practice.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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