本文關(guān)鍵詞： 無(wú)線自組織網(wǎng) 動(dòng)態(tài)拓?fù)?鏈路持續(xù)時(shí)間 擁塞可能性 穩(wěn)定路由　出處：《電子與信息學(xué)報(bào)》2017年06期 　論文類型：期刊論文

【摘要】：該文旨在為拓?fù)鋭?dòng)態(tài)變化的無(wú)線自組織網(wǎng)絡(luò)設(shè)計(jì)一種穩(wěn)定性路由機(jī)制。首先建模分析了動(dòng)態(tài)變化網(wǎng)絡(luò)中節(jié)點(diǎn)間通信路徑存在的條件,以及數(shù)據(jù)包在該路徑上可靠傳輸?shù)臈l件,基于以上分析提出了保證路徑有效的關(guān)鍵指標(biāo):鏈路持續(xù)時(shí)間、擁塞可能性因子。接下來(lái)提出基于節(jié)點(diǎn)當(dāng)前運(yùn)動(dòng)情況計(jì)算鏈路持續(xù)時(shí)間,以及基于緩沖區(qū)隊(duì)列長(zhǎng)度與隊(duì)列長(zhǎng)度變化率計(jì)算節(jié)點(diǎn)擁塞可能性因子的算法。結(jié)合鏈路持續(xù)時(shí)間與節(jié)點(diǎn)擁塞可能性等信息,該文提出了一種面向路徑可靠性及穩(wěn)定性綜合指標(biāo)的按需路由機(jī)制(ODRP-DR),并利用NS2仿真平臺(tái)對(duì)該機(jī)制性能進(jìn)行分析,仿真結(jié)果表明,在網(wǎng)絡(luò)拓?fù)浣Y(jié)構(gòu)動(dòng)態(tài)變化的情況下能有效減小數(shù)據(jù)包丟包概率,路由重建次數(shù)。
[Abstract]:The purpose of this paper is to design a stable routing mechanism for dynamically changing wireless ad hoc networks. Firstly, the conditions for the existence of communication paths between nodes in dynamically changing networks are modeled and analyzed. Based on the above analysis, the key index to ensure the path validity is proposed: link duration. Congestion probability factor. Next, the link duration is calculated based on the current motion of the node. An algorithm based on buffer queue length and queue length change rate to calculate the congestion probability factor of nodes is proposed, which combines the information of link duration and congestion probability of nodes. In this paper, an on-demand routing mechanism, ODRP-DRN, which is oriented to the comprehensive index of path reliability and stability, is proposed, and the performance of the mechanism is analyzed by using NS2 simulation platform. The probability of packet loss and the number of times of routing reconstruction can be reduced effectively when the topology of the network changes dynamically.
【作者單位】： 北京郵電大學(xué);先進(jìn)信息網(wǎng)絡(luò)北京實(shí)驗(yàn)室;
【基金】：網(wǎng)絡(luò)體系構(gòu)建與融合實(shí)驗(yàn)室主任基金(2016BKL-NSAC-ZJ-06) 國(guó)家科技重大專項(xiàng)2016年項(xiàng)目(2016ZX03001009-003)~~
【分類號(hào)】：TN929.5
【正文快照】： 1引言無(wú)線自組織網(wǎng)絡(luò)有快速部署、動(dòng)態(tài)組網(wǎng)、高抗毀性等優(yōu)點(diǎn),在軍事通信、抗震救災(zāi)、工業(yè)控制等方面具有廣闊的應(yīng)用前景。無(wú)線自組織網(wǎng)絡(luò)中傳統(tǒng)的路由協(xié)議是以跳數(shù)等信息為參數(shù)建立路由,由于 網(wǎng)絡(luò)結(jié)構(gòu)的動(dòng)態(tài)變化鏈路斷裂的情況頻繁發(fā)生,此時(shí)使用該鏈路通信的路由隨之失效,觸，

本文編號(hào)：1478663