太赫兹科学与电子信息学报
太赫玆科學與電子信息學報
태혁자과학여전자신식학보
Information and Electronic Engineering
2014年
1期
62-66
,共5页
机会网络%连接质量%节点相关度%转发效用
機會網絡%連接質量%節點相關度%轉髮效用
궤회망락%련접질량%절점상관도%전발효용
opportunistic network%link quality%nodes similarity%forwarding utility
提出利用连接质量估计节点间消息成功转发的概率,并证明了节点间相关度越高,消息转发率越高。在此基础上,提出基于连接质量和节点相关度的机会网络路由机制。路由计算节点转发效用值时,综合了连接质量和节点相关度;消息转发时,不断向相对于目的节点转发效用值高的节点转发消息。仿真结果表明,与传统路由相比,在消息送达率相同的前提下,该路由消息延迟更小、消耗的总能量更少。
提齣利用連接質量估計節點間消息成功轉髮的概率,併證明瞭節點間相關度越高,消息轉髮率越高。在此基礎上,提齣基于連接質量和節點相關度的機會網絡路由機製。路由計算節點轉髮效用值時,綜閤瞭連接質量和節點相關度;消息轉髮時,不斷嚮相對于目的節點轉髮效用值高的節點轉髮消息。倣真結果錶明,與傳統路由相比,在消息送達率相同的前提下,該路由消息延遲更小、消耗的總能量更少。
제출이용련접질량고계절점간소식성공전발적개솔,병증명료절점간상관도월고,소식전발솔월고。재차기출상,제출기우련접질량화절점상관도적궤회망락로유궤제。로유계산절점전발효용치시,종합료련접질량화절점상관도;소식전발시,불단향상대우목적절점전발효용치고적절점전발소식。방진결과표명,여전통로유상비,재소식송체솔상동적전제하,해로유소식연지경소、소모적총능량경소。
A new concept called link quality is used to estimate the delivery probability between nodes. It is also proved that the higher the node similarity is, the higher the messages forwarding rate becomes. And then, the opportunistic network routing based on Link Quality and Nodes Similarity(LQ-NS) is proposed, and the message delivery utility is calculated with LQ-NS. The messages are continually forwarded to the nodes with higher utility relative to the destination nodes. Simulation results show that the LQ-NS routing has significantly reduced the message delay and total energy consumption compared to traditional Epidemic and Probabilistic Routing Protocol using History of Encounters and Transitivity(PRoPHET).