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基于泛洪区域限定的改进DSR节能组网
2022年电子技术应用第5期
孟金林
轨道交通工程信息化国家重点实验室(中铁一院),陕西 西安710043
摘要: 针对动态源自组网(Dynamic Source Routing,DSR)因泛洪组网请求(Route Request,RREQ)而产生的高组网能耗问题,提出基于区域的发现机制的DSR组网(Zone-based Route Discovery Mechanism,ZRDM)。ZRDM组网依据节点的环境以及邻居节点的分布情况,将节点网络区域划分为3个子区域。每个节点数据含一个邻居表,并将邻居节点划分为3个子区域。同时DSR组网只允许部分节点传输RREQ数据。仿真结果表明,提出的ZRDM组网降低了能耗,提高了数据传递率。在节点数为140时,相比DSR组网,ZRDM组网的归一化能耗下降了47.8%,数据传递率提高约2.78%。
中圖分類號(hào): TN915
文獻(xiàn)標(biāo)識(shí)碼: A
DOI:10.16157/j.issn.0258-7998.212446
中文引用格式: 孟金林. 基于泛洪區(qū)域限定的改進(jìn)DSR節(jié)能組網(wǎng)[J].電子技術(shù)應(yīng)用,2022,48(5):70-75.
英文引用格式: Meng Jinlin. An improved DSR energy-saving networking based on flood area limitation[J]. Application of Electronic Technique,2022,48(5):70-75.
An improved DSR energy-saving networking based on flood area limitation
Meng Jinlin
State Key Laboratory of Rail Transit Engineering Informatization(FSDI),Xi′an 710043,China
Abstract: Aiming at the high networking energy consumption problem of dynamic source routing(DSR) caused by flood networking request(RREQ), a zone based route discovery mechanism(ZRDM) is proposed. ZRDM networking divides the node network area into three sub areas according to the node environment and the distribution of neighbor nodes. Each node contains a neighbor table, and the neighbor node is divided into three sub regions. At the same time, DSR networking only allows some nodes to transmit RREQ packets. Simulation results show that the proposed ZRDM networking reduces energy consumption and improves packet delivery rate. When the number of nodes is 140, compared with DSR networking, the normalized energy consumption of ZRDM networking decreases by 47.8%, and the packet delivery rate increases by about 2.78%.
Key words : mobile ad hoc network;dynamic source routing;route discovery;flooding

0 引言

    動(dòng)態(tài)源自組網(wǎng)(Dynamic Source Routing,DSR)是移動(dòng)Ad hoc網(wǎng)絡(luò)(Mobile Ad hoc Network,MANET)[1-2]的典型組網(wǎng),其主要有組網(wǎng)發(fā)現(xiàn)和組網(wǎng)維護(hù)兩個(gè)階段[3-4]。在組網(wǎng)發(fā)現(xiàn)階段,源節(jié)點(diǎn)通過鏈接RREQ,構(gòu)建連通目的節(jié)點(diǎn)的組網(wǎng)。

    然而,若盲目地泛洪RREQ數(shù)據(jù),增加了網(wǎng)絡(luò)能耗,也容易引起鏈接風(fēng)暴問題[5]。針對(duì)這些問題,研究人員提出不同的泛洪改進(jìn)算法,如N跳泛洪[6]、概率泛洪[7-8]。

    本文針對(duì)源組網(wǎng)的RREQ的泛洪問題,提出區(qū)域的組網(wǎng)發(fā)現(xiàn)機(jī)制的DSR組網(wǎng)(Zone-based Route Discovery Mechanism,ZRDM)。ZRDM組網(wǎng)通過限定泛洪RREQ的區(qū)域,減少RREQ數(shù)據(jù)重傳的次數(shù),進(jìn)而控制能耗,提高數(shù)據(jù)傳遞率。仿真結(jié)果表明,提出的ZRDM組網(wǎng)降低了組網(wǎng)能耗,提高了數(shù)據(jù)傳遞率。




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作者信息:

孟金林

(軌道交通工程信息化國(guó)家重點(diǎn)實(shí)驗(yàn)室(中鐵一院),陜西 西安710043)




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