Ad Hoc网络中采用功率调整的单向链路通告策略  

Unidirectional Links Advertisement Mechanism Based on Power Adjustment in Ad Hoc Network

作　　者：王英赫[1] 宋梅[1] 陈浩[1] 张英海[1] 

机构地区：[1]北京邮电大学电子工程学院,北京100876

出　　处：《北京邮电大学学报》2012年第5期102-106,共5页Journal of Beijing University of Posts and Telecommunications

基　　金：国际科技合作项目(2010DFA11320);国家自然科学基金项目(61101107);北京邮电大学青年科研创新计划专项项目(2011RC0305)

摘　　要：针对普遍存在于Ad hoc网络的单向链路问题,提出了基于功率调整的单向链路通告策略.该策略可将单向链路状态信息通告到链路上游节点,以提高网络的连通能力,提升路由建立成功率.在采用该策略的基础上,给出了利用单向链路建立路由的方法.仿真结果表明,该链路状态通告策略和路由建立机制在端到端延迟、路由路径长度等方面达到了研究目的.In Ad hoc networks,a wireless link may be unidirectional because of the difference of transmission range and transmission capability of each node,etc.The features of unidirectional links were studied in Ad hoc networks.A unidirectional link-state advertisement mechanism based on power adjustment（ULAPA） is designed.ULAPA can improve the network connectivity.According to ULAPA,a unidirectional link-state advertisement mechanism based on accurate power adjustment（ULAAPA） is proposed.ULAAPA can decrease energy consumption of nodes through accurate power adjustment.A routing method using unidirectional links is described for Ad hoc network.Results of simulation show some performances are better than those of traditional routing mechanisms.

关 键 词：AD HOC网络 单向链路 功率调整 通告策略 

分 类 号：TN393[电子电信—物理电子学]