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.
出处
《现代电子技术》
2009年第17期13-16,共4页
Modern Electronics Technique