TIM:基于PCAM与路由感知信息的多信道MAC协议  

TIM:Multi-Channel MAC Protocol based on PCAM and Routing Apperception

作　　者：刘玲[1] 陈彦德[2] 林龙[3] 彭易[1] 

机构地区：[1]解放军理工大学通信工程学院研究生4队 [2]南京军区通信网络技术管理中心 [3]中国人民解放军73683部队

出　　处：《军事通信技术》2011年第4期8-11,48,共5页Journal of Military Communications Technology

基　　金：国家高技术研究发展计划(863计划)资助项目(2009AA012243)

摘　　要：PCAM协议在单信道MAC协议基础上构建了节点多信道的模型,并提出了新的多信道MAC协议,但是在信道分配方面没有考虑网络实际需求,存在信道使用率低下的问题。文章通过结合路由感知信息在PCAM基础上提出了TIM协议,采用信道冲突模型解决了信道分配问题。仿真结果表明,相比于PCAM,TIM协议网络吞吐量平均提高16.4%,平均时延降低了28.28%,网络性能得到了进一步提升。PCAM designs a multi-channel model of node based on the single-channel MAC protocol and proposes a novel multi-channel medium access control protocol,while it doesn＇ t take into account the real demand of network on channel assignment,so the channels are used inefficiently. This paper proposed a new channel assignment protocol TIM,in which routing apperception information and channel conflict model were used to settle the problems mentioned above. Simulation results show that compared with PCAM,the performance is about 16.4%higher than PCAM on average throughput of the network and 28.28%less than PCAM on delay,and the performance of network is further upgraded.

关 键 词：多信道 路由感知 信道冲突模型 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]