光通信研究
光通信研究
광통신연구
STUDY ON OPTICAL COMMUNICATIONS
2015年
1期
60-63
,共4页
Ad hoc 网络%AODV 路由协议%RREQ 消息%仿真
Ad hoc 網絡%AODV 路由協議%RREQ 消息%倣真
Ad hoc 망락%AODV 로유협의%RREQ 소식%방진
Ad hoc network%AODV routing protocol%RREQ message%simulation
在 Ad hoc 网络(自组织网络)的路由建立过程中,由于 AODV(Ad hoc 按需距离矢量)路由采用洪泛方式转发 RREQ(路由请求)消息会产生很多不必要的重传,很可能引发广播风暴而影响网络性能。文章提出了一种基于动态概率转发 RREQ 消息的改进方案,该方案根据邻居节点的个数选择不同的概率转发 RREQ 消息。仿真结果表明,在网络节点较多且网络比较稠密的情况下,改进方案能有效减少网络端到端时延,提高网络吞吐量和分组投递率。
在 Ad hoc 網絡(自組織網絡)的路由建立過程中,由于 AODV(Ad hoc 按需距離矢量)路由採用洪汎方式轉髮 RREQ(路由請求)消息會產生很多不必要的重傳,很可能引髮廣播風暴而影響網絡性能。文章提齣瞭一種基于動態概率轉髮 RREQ 消息的改進方案,該方案根據鄰居節點的箇數選擇不同的概率轉髮 RREQ 消息。倣真結果錶明,在網絡節點較多且網絡比較稠密的情況下,改進方案能有效減少網絡耑到耑時延,提高網絡吞吐量和分組投遞率。
재 Ad hoc 망락(자조직망락)적로유건립과정중,유우 AODV(Ad hoc 안수거리시량)로유채용홍범방식전발 RREQ(로유청구)소식회산생흔다불필요적중전,흔가능인발엄파풍폭이영향망락성능。문장제출료일충기우동태개솔전발 RREQ 소식적개진방안,해방안근거린거절점적개수선택불동적개솔전발 RREQ 소식。방진결과표명,재망락절점교다차망락비교주밀적정황하,개진방안능유효감소망락단도단시연,제고망락탄토량화분조투체솔。
In routing establishment for Ad hoc networks,Ad hoc On-Demand Distance Vector (AODV)routing protocol adopts flooding forwarding for Route Request (RREQ)messages,which will generate a lot of unnecessary retransmission and may cause broadcast storm,thus affecting the network performances.In view of this problem,this paper proposes an improved scheme based on dynamic probabilistic forwarding,in which it selects different probabilistic forwarding for RREQ messages ac-cording to the number of neighbor nodes.The results show that this scheme effectively reduces the network end-to-end delay and improves the network throughtput and packet delivery rate,especially when there are more nodes in the network and the network is dense.