發(fā)布時(shí)間：2018-01-28 17:17

  本文關(guān)鍵詞： VANET ICN 車輛動(dòng)態(tài)參數(shù) LET 路由構(gòu)造及篩選　出處：《通信學(xué)報(bào)》2017年05期 　論文類型：期刊論文

【摘要】：結(jié)合VANET與信息中心網(wǎng)絡(luò)(ICN,information centric network)架構(gòu),提出基于車輛動(dòng)態(tài)信息的路由構(gòu)造及篩選策略(SRBS,strategy for routing building and selecting)。摒棄了廣泛采用的洪泛策略,通過內(nèi)容發(fā)現(xiàn)定位內(nèi)容節(jié)點(diǎn),隨后構(gòu)造多個(gè)單播轉(zhuǎn)發(fā)路徑,減少了網(wǎng)絡(luò)中的無用流量;為保證Data分組能夠成功原路返回,在單播路徑構(gòu)造中引入車輛動(dòng)態(tài)參數(shù)作為構(gòu)造依據(jù)并結(jié)合鏈路有效時(shí)間(LET,link expiration time)進(jìn)行路徑篩選,提高了轉(zhuǎn)發(fā)路徑的穩(wěn)定性及可靠性;仿真表明該方案提高了路由對(duì)時(shí)間的容忍度,充分利用了網(wǎng)絡(luò)緩存并減少了網(wǎng)絡(luò)時(shí)延及路由跳數(shù)。
[Abstract]:Combining VANET with the information center network (ICN information centric network) architecture. This paper presents a route construction and screening strategy based on vehicle dynamic information (SRBS). Strategy for routing building and selection. Abandoned the widely-adopted flooding strategy. The content node is located by content discovery, and then a plurality of unicast forwarding paths are constructed to reduce the useless traffic in the network. In order to ensure the successful return of Data packet, vehicle dynamic parameters are introduced into unicast path construction and link effective time is combined with let. Link expiration time improves the stability and reliability of the forwarding path. Simulation results show that the proposed scheme improves the time tolerance of routing, makes full use of network cache and reduces network delay and routing hops.
【作者單位】： 北京郵電大學(xué)網(wǎng)絡(luò)與交換國(guó)家重點(diǎn)實(shí)驗(yàn)室;
【基金】：國(guó)家自然科學(xué)基金資助項(xiàng)目(No.61302078,No.61372108) 國(guó)家高技術(shù)研究發(fā)展計(jì)劃(“863”計(jì)劃)基金資助項(xiàng)目(No.2011AA01A102) 國(guó)家科技重大基金資助項(xiàng)目(No.2011ZX03005-004-02) 北京高等教育優(yōu)秀青年教師基金資助項(xiàng)目(No.YETP0476)~~
【分類號(hào)】：TN929.5;U495
【正文快照】： 1引言作為智能交通系統(tǒng)(ITS)的重要研究部分,VANET[1]已成為移動(dòng)網(wǎng)絡(luò)研究領(lǐng)域的熱門話題。隨著研究的深入,一些學(xué)者發(fā)現(xiàn)傳統(tǒng)網(wǎng)絡(luò)模式下的VANET存在諸多不足[2]:1)為動(dòng)態(tài)節(jié)點(diǎn)分配IP地址并時(shí)刻保持各個(gè)節(jié)點(diǎn)與IP地址的固定映射非常困難;2)高動(dòng)態(tài)環(huán)境下利用IP地址來對(duì)車輛節(jié)點(diǎn)進(jìn)行，

本文編號(hào)：1471089