节点传输半径对无线自组织网络容量的影响分析*

在共享无线信道的多跳无线自组织网络中，节点传输半径的大小直接影响节点的一跳吞吐量和业务流传输的中继所需跳数，从而影响网络容量。在网络业务类型一致的条件下，通过数学模型分析和仿真实验，考察了网络容量与节点传输半径、业务流传输的路径长度以及网络节点数量之间的关系，其分析结果有助于优化无线网络的组网结构。

Analysis of transmission range impact on throughput performance in multi hop wireless networks

In multi-hop wireless Ad hoc networks where nodes shared the available wireless bandwidth,transmission range had significant effect on the one-hop throughput of a node and the number of hops a traffic flow need to traverse,and consequently affected the capacity of the whole network.Assumed uniform traffic pattern,this paper examined the influence of transmission range,path length of traffic flows and node number on network capacity through an analytical model and simulation experiments.The result is helpful for optimizing the structure of multi-hop wireless networks.