一种增加802.11单跳网络吞吐量的方案  

A method of improving the throughput of 802.11 channel

作　　者：张悦[1] 王澄[1] 杨宇航[1] 

机构地区：[1]上海交通大学电子工程系,上海200030

出　　处：《信息技术》2005年第3期42-45,共4页Information Technology

摘　　要：随着IEEE802.11标准的颁布,越来越多的无线局域网产品在各类领域中得到广泛应用。由于不受传输线的限制,人们可以在任何场所进行信息的交换。但是由于802.11对于隐藏终端与暴露终端问题的解决约束条件过于严格,使网络的吞吐量有所下降。笔者针对这一问题,在802.11MAC中加入了一种功率控制方案。通过使用NS-2进行仿真,结果证明在某些条件下,加入功率控制方案可以达到提高802.11网络吞吐量的目的。With the IEEE's proposed standard for wireless LANs (IEEE 802.11), more and more wireless LAN applications are used in many fields. No longer limited by the wires, people will be able to communicate and exchange information anywhere. However, the restriction that 802.11 uses to resolve the problem of hidden node and exposed node is so strict that the throughput of whole network decrease. In the article, a power controll mechanism is added to improve the network's throughput. Through simulations using NS-2, the power control mechanism is proved to be effective in that network throughput can be increased under some conditions.

关 键 词：802.11 MAC 吞吐量 

分 类 号：TN925.93[电子电信—通信与信息系统]