一种用于无线Mesh网络准入控制的带宽估计新方案

2011 IEEE Workshops of International Conference on Advanced Information Networking and Applications Pub Date : 2011-03-22 DOI:10.1109/WAINA.2011.57

Chen Su, Kaiping Xue, P. Hong, Hanchen Lu

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引用次数: 3

摘要

准确估计mesh节点的可用带宽是无线mesh网络准入控制机制的必要前提，它为无线mesh网络提供了QoS保证。现有的带宽估计方案没有准确考虑空间复用对并行传输的影响，过于保守。在本研究中，我们提出了一种精确的带宽估计方案BEPTC (bandwidth estimation with Parallel Transmission Consideration)，通过解决图论中的最大团问题来降低并行传输引起的估计精度。该方案集成到AODV(逐跳路由协议)中使用的准入控制机制中。仿真结果表明，基于BEPTC的允许控制机制能够有效地控制流量负载，并为允许的新流提供QoS保证，使网络能够容纳更多具有QoS保证的流，获得比其他保守方法更高的系统吞吐量。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A Novel Bandwidth Estimation Scheme Used in Admission Control for Wireless Mesh Networks

An accurate estimation of the available bandwidth of mesh nodes is the essential prerequisite of admission control mechanism, which provides QoS assurance in wireless mesh networks. Existing bandwidth estimation schemes do not accurately consider the influence of parallel transmission due to spatial reuse and act overly conservative. In this study, we proposed an accurate bandwidth estimation scheme, the BEPTC (Bandwidth Estimation with Parallel Transmission Consideration), to reduce the parallel transmission caused estimation accuracy by solving the maximum clique problem in graph theory. The scheme is integrated into an admission control mechanism used in a hop-by-hop routing protocol (AODV). The simulation results demonstrate that the admission control mechanism based on BEPTC can effectively control the traffic load and offer QoS guarantee for admitted new flows, which can lead the network to accommodate more flows with QoS guarantee and obtain higher system throughput compared with other conservative approaches.

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2011 IEEE Workshops of International Conference on Advanced Information Networking and Applications

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