本文選題：DTN網(wǎng)絡(luò) + 通信中斷��； 參考：《計算機工程與設(shè)計》2017年04期

【摘要】：車輛時延容忍網(wǎng)絡(luò)在實際應(yīng)用中存在較嚴(yán)重的數(shù)據(jù)丟失及延遲過高的問題,對此提出一種中斷最小化I2RV候選中繼DTN擁塞控制協(xié)議。提出一個中斷最小化I2RV中繼方案,減少信號未覆蓋區(qū)域存在的相距較遠(yuǎn)鄰近單元間的通信中斷(RSUs)問題,在該方案中為目標(biāo)車輛設(shè)置兩個延遲,一個延遲設(shè)置在車輛離開信號覆蓋區(qū)域時,另一個設(shè)置在車輛進(jìn)入下一個通信中斷時;建立中繼車輛最小中繼成本及中斷時間選擇方式,建立目標(biāo)車輛速度優(yōu)化協(xié)調(diào)機制。與現(xiàn)有的采用內(nèi)點算法單中繼選擇方案進(jìn)行實驗對比分析,分析結(jié)果表明,中斷最小化I2RV中繼方案能夠比單中繼方案更好地減少數(shù)據(jù)丟失及延遲過高問題,可有效降低因通信中斷導(dǎo)致的車輛擁擠問題。
[Abstract]:There are serious problems of data loss and high delay in vehicle delay tolerant networks. A congestion control protocol for I2RV candidate relay DTN is proposed. In this paper, an interrupt minimization I2RV relay scheme is proposed to reduce the communication interruptions between the distant adjacent units in the uncovered area of the signal. In this scheme, two delays are set for the target vehicle. One delay is set up when the vehicle leaves the signal coverage area, the other is set up when the vehicle enters the next communication interrupt, and the minimum relay cost and interrupt time selection mode of the relay vehicle are established, and the optimization and coordination mechanism of the target vehicle speed is established. The experimental results show that the interrupt minimization I2RV relay scheme can reduce the data loss and high delay better than the single relay scheme. It can effectively reduce the problem of traffic congestion caused by the interruption of communication.
【作者單位】： 廣東農(nóng)工商職業(yè)技術(shù)學(xué)院計算機系;華南理工大學(xué)軟件學(xué)院;
【分類號】：U495;TP393.04
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本文編號：1836936