中国科技论文在线
中國科技論文在線
중국과기논문재선
SCIENCEPAPER ONLINE
2011年
10期
711-715,731
,共6页
AODV%概率转发%NS2%广播风暴%无线网络
AODV%概率轉髮%NS2%廣播風暴%無線網絡
AODV%개솔전발%NS2%엄파풍폭%무선망락
Ad hoc on-demand distance vector routing%probabilistic forwarding%network simulator version2%broadcast storm%wireless network
按需距离矢量路由协议（AODV）在寻找路由时是通过洪泛法发送路由请求（RREQ）实现的。洪泛法能较好地找到所需的路由,但时延较大,产生了许多不必要的重传,易造成广播风暴。针对AODV路由协议,提出了一种基于概率转发的机制。这种机制根据邻居节点的个数,选用不同的概率转发RREQ。NS2仿真模拟结果表明,该方法可以降低时延,提高吞吐量,提高分组投递率。
按需距離矢量路由協議（AODV）在尋找路由時是通過洪汎法髮送路由請求（RREQ）實現的。洪汎法能較好地找到所需的路由,但時延較大,產生瞭許多不必要的重傳,易造成廣播風暴。針對AODV路由協議,提齣瞭一種基于概率轉髮的機製。這種機製根據鄰居節點的箇數,選用不同的概率轉髮RREQ。NS2倣真模擬結果錶明,該方法可以降低時延,提高吞吐量,提高分組投遞率。
안수거리시량로유협의（AODV）재심조로유시시통과홍범법발송로유청구（RREQ）실현적。홍범법능교호지조도소수적로유,단시연교대,산생료허다불필요적중전,역조성엄파풍폭。침대AODV로유협의,제출료일충기우개솔전발적궤제。저충궤제근거린거절점적개수,선용불동적개솔전발RREQ。NS2방진모의결과표명,해방법가이강저시연,제고탄토량,제고분조투체솔。
Ad hoc on-demand distance vector routing （AODV） send Route REQuest （RREQ） through flooding when it wantto search routing. Flooding can find the routing but the delay is long and it is generate many retransmission. Even worse, it is easily bring broadcast storm. This paper researched AODV routing protocol and gived a mechanism based on probabilistic forward. This mechanism choose different probabilistic forwarding RREQ through neighbor＇s numbers. The NS2 simulation results shows that this idea can decrease delay and can increase thoughput as well as packet delivery fraction ratio.
