【摘要】：隨著網(wǎng)絡(luò)通信、信息技術(shù)的日新月異，無線個(gè)域網(wǎng)越來越受到人們的關(guān)注。ZigBee技術(shù)作為新興的專為無線個(gè)域網(wǎng)而設(shè)計(jì)的，基于IEEE802.15.4無線通信標(biāo)準(zhǔn)的雙向無線通信技術(shù)或無線網(wǎng)絡(luò)技術(shù)，具有系統(tǒng)開銷小、傳輸速率快、能耗低等特點(diǎn)，逐漸取代了傳統(tǒng)無線傳感器網(wǎng)絡(luò)技術(shù)在工業(yè)、醫(yī)療、移動(dòng)通信以及數(shù)字智能家居等鄰域中的地位，成為目前國(guó)內(nèi)外各大通信公司以及學(xué)者研究的“熱點(diǎn)”之一。但是，由于ZigBee技術(shù)剛剛起步，許多理論體系還未成熟，再加上其硬件系統(tǒng)的復(fù)雜性，致使許多研究人員將目光放到了ZigBee協(xié)議的網(wǎng)絡(luò)層上，對(duì)路由算法進(jìn)行相應(yīng)改進(jìn)，從而解決ZigBee技術(shù)在實(shí)際應(yīng)用中遇到的網(wǎng)絡(luò)能量不均衡、網(wǎng)絡(luò)易癱瘓等問題。因此，如何盡可能的均衡網(wǎng)絡(luò)能量負(fù)載，延長(zhǎng)網(wǎng)絡(luò)生命周期成為目前ZigBee協(xié)議研究的重要課題之一。 本文綜合考慮單個(gè)節(jié)點(diǎn)生存周期和整個(gè)網(wǎng)絡(luò)能量消耗，提出了一種基于權(quán)值分簇的ZigBee能量均衡路由算法。通過定義節(jié)點(diǎn)能量水平以及節(jié)點(diǎn)權(quán)值，建立一種基于權(quán)值的分簇機(jī)制，避免單個(gè)節(jié)點(diǎn)的不必要能量消耗和死亡。在數(shù)據(jù)傳輸機(jī)制方面，為避免產(chǎn)生大量冗余的RREQ分組，規(guī)定只有簇首才能廣播RREQ報(bào)文，通過限制RREQ洪泛方向，避免大量冗余RREQ分組產(chǎn)生。在簇首輪換上，引入節(jié)點(diǎn)相似度概念，簇首在簇內(nèi)選擇與自己相似度大的FFD鄰居節(jié)點(diǎn)擔(dān)當(dāng)替補(bǔ)簇首，從而盡可能減小網(wǎng)絡(luò)拓?fù)浣Y(jié)構(gòu)變化，避免重新分簇帶來的額外能耗。路由修復(fù)過程中，根據(jù)失效鏈路兩端節(jié)點(diǎn)關(guān)系選擇不同的路由修復(fù)策略�；贜S2網(wǎng)絡(luò)仿真平臺(tái)對(duì)改進(jìn)算法進(jìn)行設(shè)計(jì)和實(shí)現(xiàn)，并從路由開銷、平均端到端延遲、遞交率、節(jié)點(diǎn)存活率以及網(wǎng)絡(luò)剩余能量等方面與ZBR路由算法相比較。 實(shí)驗(yàn)表明，改進(jìn)算法相較于ZBR路由算法減小了3.6%的網(wǎng)絡(luò)整體能量消耗，延長(zhǎng)了約15%的網(wǎng)絡(luò)生命周期，達(dá)到了均衡負(fù)載，，延長(zhǎng)網(wǎng)絡(luò)生命周期的目的。
[Abstract]:With the rapid development of network communication and information technology, wireless personal area network (WPAN) has attracted more and more attention. ZigBee technology is designed for wireless personal area network (WPAN) as a new technology. Bidirectional wireless communication technology or wireless network technology based on IEEE802.15.4 wireless communication standard, with the characteristics of low system overhead, fast transmission rate and low energy consumption, has gradually replaced the traditional wireless sensor network technology in industry, medical treatment, etc. The status of mobile communication and digital smart home has become one of the "hot spots" studied by domestic and foreign communication companies and scholars. However, due to the ZigBee technology just started, many theoretical systems are not mature, plus the complexity of its hardware system, so many researchers focus on the network layer of ZigBee protocol, and improve the routing algorithm accordingly. In order to solve the ZigBee technology in the practical application of the network energy imbalance, network paralysis and other problems. Therefore, how to balance the network energy load as much as possible and prolong the network life cycle has become one of the most important issues in the research of ZigBee protocol. Considering the lifetime of a single node and the energy consumption of the whole network, this paper proposes a weighted cluster-based ZigBee energy equalization routing algorithm. By defining node energy level and node weight, a weight based clustering mechanism is established to avoid unnecessary energy consumption and death of a single node. In the aspect of data transmission mechanism, in order to avoid generating a large number of redundant RREQ packets, it is stipulated that only the cluster head can broadcast RREQ packets, and by limiting the RREQ flooding direction, a large number of redundant RREQ packets can be avoided. In the first round, the concept of node similarity is introduced. The cluster head selects the FFD neighbor node with high similarity to act as the backup cluster head, so as to minimize the network topology changes and avoid the additional energy consumption caused by re-clustering. In the course of route repair, different route repair strategies are selected according to the relationship between the two ends of the failure link. The improved algorithm is designed and implemented based on NS2 network simulation platform, and compared with ZBR routing algorithm in terms of routing overhead, average end-to-end delay, delivery rate, node survival rate and network residual energy. Experimental results show that compared with the ZBR routing algorithm, the improved algorithm reduces the overall energy consumption by 3.6%, prolongs the network life cycle by about 15%, achieves the purpose of balancing the load and prolonging the network life cycle.
【學(xué)位授予單位】：哈爾濱理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TN92

【引證文獻(xiàn)】

相關(guān)期刊論文 前3條

1 王春玲;孟丹;蔣麒;佘佐彬;;ZigBee路由算法在古樹名木監(jiān)控中的應(yīng)用[J];傳感器與微系統(tǒng);2016年06期

2 趙博;吳靜;;基于ZigBee無線網(wǎng)絡(luò)的Cluster-Tree路由算法研究[J];電子技術(shù)應(yīng)用;2016年04期

3 包理群;石全民;;城市空氣質(zhì)量遠(yuǎn)程分布式監(jiān)測(cè)系統(tǒng)設(shè)計(jì)[J];自動(dòng)化與儀器儀表;2015年03期

相關(guān)碩士學(xué)位論文 前7條

1 李清木;基于分簇策略的ZigBee網(wǎng)絡(luò)路由能量?jī)?yōu)化方法研究[D];浙江理工大學(xué);2017年

2 舒紅;ZigBee網(wǎng)絡(luò)混合路由算法研究[D];重慶郵電大學(xué);2016年

3 張孟誠;老人生理狀態(tài)與生活環(huán)境檢測(cè)及應(yīng)用研究[D];安徽理工大學(xué);2016年

4 趙博;基于ZigBee技術(shù)的無線網(wǎng)絡(luò)路由算法研究[D];西南科技大學(xué);2016年

5 張新城;ZigBee路由算法的研究及其在井場(chǎng)監(jiān)控中的應(yīng)用[D];東北石油大學(xué);2016年

6 毛寧;ZigBee路由算法的優(yōu)化研究[D];長(zhǎng)春工業(yè)大學(xué);2015年

7 佘佐彬;基于物聯(lián)網(wǎng)的古樹名木監(jiān)控管理的研究[D];北京林業(yè)大學(xué);2015年

本文編號(hào)：2177047