摘要
在Ad hoc网络多信道MAC层协议中,信道的负载均衡问题会影响系统的性能,已有的负载均衡方法大多基于载波侦听技术,给每个数据信道配置一个物理载波侦听模块,这增加了设备复杂度和系统能耗。为此,提出了一种新的基于虚拟载波侦听的负载均衡方法,系统设置负载信息表记录每个数据信道的负载信息,使节点不需要侦听模块就可以获取数据信道上的负载量。仿真结果表明该方法提高了系统的性能。
In the multi-channel MAC protocol of Ad hoc networks, the load balancing of channels can affect the performance of system. Traditional methods for load balancing are based on carrier sense, in which every data channel has a sense module, which increases the equipment＇s complexity and energy consumption. A new load balancing method based on dummy cartier sense is presented, and a load info list is set for data channels, which can make load of data channels clear without setting the sense modules. Simulation results show that the method presented in this paper can enhance the performance of system.
出处
《无线电通信技术》
2009年第2期1-4,共4页
Radio Communications Technology
基金
国家自然科学资金项目(NO.60771034)
