本文關(guān)鍵詞： 無(wú)線傳感器網(wǎng)絡(luò) 時(shí)間同步 簇 多跳 能量均衡　出處：《計(jì)算機(jī)應(yīng)用》2014年09期 　論文類(lèi)型：期刊論文

【摘要】：針對(duì)現(xiàn)有時(shí)間同步算法應(yīng)用于多跳無(wú)線傳感器網(wǎng)絡(luò)時(shí)存在的誤差累計(jì)和能耗不均衡問(wèn)題,提出一種基于簇的能量均衡時(shí)間同步算法。該算法基于簇狀分層的網(wǎng)絡(luò)拓?fù)?簇首之間采用雙向監(jiān)聽(tīng)機(jī)制代替雙向交換機(jī)制,以減小通信開(kāi)銷(xiāo)和發(fā)送時(shí)延帶來(lái)的同步誤差;簇成員節(jié)點(diǎn)利用雙向交換和單向廣播相結(jié)合的機(jī)制與簇首同步,并通過(guò)最優(yōu)剩余能量選取回應(yīng)節(jié)點(diǎn),均衡簇內(nèi)節(jié)點(diǎn)能耗。對(duì)提出的新方法和傳統(tǒng)的同步算法在精度和能耗方面進(jìn)行理論分析和仿真驗(yàn)證,結(jié)果表明,該算法在保證較高同步精度的前提下可以減小通信開(kāi)銷(xiāo),均衡網(wǎng)內(nèi)節(jié)點(diǎn)能量消耗,延長(zhǎng)網(wǎng)絡(luò)生命周期。
[Abstract]:Aiming at the existing time synchronization algorithms used in multi-hop wireless sensor networks, error accumulation and energy consumption are unbalanced. This paper presents a cluster-based energy equalization time synchronization algorithm, which is based on a cluster hierarchical network topology and uses a bidirectional listening mechanism instead of a two-way switching mechanism between cluster heads. In order to reduce the synchronization error caused by communication overhead and transmission delay; The cluster member node synchronizes with the cluster head using the mechanism of bidirectional switching and one-way broadcasting, and selects the response node through the optimal residual energy. The proposed new method and the traditional synchronization algorithm are theoretically analyzed and simulated in terms of accuracy and energy consumption, and the results show that. This algorithm can reduce the communication overhead, equalize the energy consumption of the nodes in the network and prolong the network life cycle under the premise of high synchronization accuracy.
【作者單位】： 華北電力大學(xué)電氣與電子工程學(xué)院;
【基金】：國(guó)家科技重大專(zhuān)項(xiàng)基金資助項(xiàng)目(2010ZX03006-005-01) 中央高�；究蒲袠I(yè)務(wù)費(fèi)專(zhuān)項(xiàng)資金資助項(xiàng)目(12QX12)
【分類(lèi)號(hào)】：TN929.5;TP212.9
【正文快照】： 0引言無(wú)線傳感器網(wǎng)絡(luò)(Wireless Sensor Network,WSN)是由分布在物理空間上的大量微型傳感器節(jié)點(diǎn)通過(guò)無(wú)線電通信形成的一個(gè)多跳的自組織網(wǎng)絡(luò)系統(tǒng),它能夠?qū)崟r(shí)監(jiān)測(cè)、感知和采集各種環(huán)境或監(jiān)測(cè)對(duì)象的信息并對(duì)其進(jìn)行處理,在國(guó)防軍事、生物醫(yī)療、環(huán)境監(jiān)測(cè)、搶險(xiǎn)救災(zāi)、交通管理和工業(yè)

【相似文獻(xiàn)】

相關(guān)期刊論文 前10條

1 孫新偉;申興發(fā);張能貴;;無(wú)線傳感器網(wǎng)絡(luò)節(jié)點(diǎn)周期性休眠時(shí)間同步研究[J];機(jī)電工程;2010年05期

2 趙小文;張小津;;紫蜂網(wǎng)絡(luò)中的時(shí)間同步[J];中國(guó)新通信;2007年17期

3 李大偉;慈林林;李釗;陳錕;;聲源定位在Micaz節(jié)點(diǎn)上的實(shí)現(xiàn)[J];無(wú)線電工程;2008年02期

4 黃成芳;何迪;;無(wú)線傳感器網(wǎng)絡(luò)延遲層次型時(shí)間同步算法[J];計(jì)算機(jī)仿真;2008年10期

5 王U，

本文編號(hào)：1461415