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路由特性对IEEE 802.11 DCF多跳网络容量的影响

Impact of Routing Property on Capacity of IEEE 802.11 DCF Multi-hop Wireless Network
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摘要 使用数学分析方法研究基于IEEE 802.11 DCF的Ad Hoc网络中节点传输半径和路由策略选择问题。在节点均匀分布的多跳网络中,使用四种路由策略以及不同的节点传输半径设置,试图找出能够使网络容量最大化的方案组合。计算结果表明,在节点密度一定的情况下,减小网络节点的传输距离有利于增加网络的容量,而在传输半径一定的条件下,使用能够导致长跳路由的策略,有利于提高网络容量。 The impact of routing schemes and nodal transmission radius on capacity of IEEE 802. 11 DCF Ad Hoc networks is studied with an analytical model in this paper. In a multi - hop network with randomly distributed terminals,and with four routing schemes, try to find the combination to maximize the network capacity. It is shown that, with a given nodal distribution density,the expected progress of packets sent by a node decreases monotonously as the transmission radius increase. This implies shorter transmission radius has an tendency to improve the network capacity. Moreover, with given nodal transmission radii,long- hop routing schemes outperform short- hop routing schemes.
作者 王炫 张文柱
机构地区 西北电网有限公司 西安电子科技大学信息科学研究所
出处 《现代电子技术》 2009年第17期13-16,共4页 Modern Electronics Technique
关键词 Ad HOC网络 IEEE 802.11 DCF 路由协议 分析模型 Ad Hoc network IEEE 802.11 DCF routing protocol analytical model
分类号 TN915.04 [电子电信—通信与信息系统]
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参考文献10

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现代电子技术
2009年 第17期

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