本文關鍵詞：大規(guī)模無線傳感器網絡覆蓋優(yōu)化研究　出處：《重慶大學》2014年碩士論文　論文類型：學位論文

  更多相關文章： 無線傳感器網絡 三峽庫區(qū) 水環(huán)境監(jiān)測 覆蓋優(yōu)化策略 人工魚群優(yōu)化算法

【摘要】：隨著長江三峽水利樞紐工程的順利推進和周邊城鎮(zhèn)化建設的加快，三峽庫區(qū)的生態(tài)環(huán)境現(xiàn)狀及其變化一直廣受國內外關注�，F(xiàn)有的監(jiān)測設備、方法和手段已不能滿足任務要求，迫切需要提高三峽庫區(qū)環(huán)境監(jiān)測的能力。 由于無線傳感器網絡具有低成本、自組織、通信靈活、可遠程實時監(jiān)控等特點，，無線傳感器網絡在環(huán)境監(jiān)測中的應用成為研究的熱點，本文以三峽庫區(qū)水環(huán)境監(jiān)測為應用背景，針對無線傳感器網絡節(jié)點能量有限的特點，重點研究覆蓋優(yōu)化策略和節(jié)點能量的均衡性來延長網絡的生命周期，在分析現(xiàn)有研究成果的基礎上，提出了適合于三峽庫區(qū)水環(huán)境監(jiān)測的大規(guī)模無線傳感器網絡覆蓋優(yōu)化策略。 根據三峽庫區(qū)水環(huán)境監(jiān)測具有監(jiān)測面積大和分布廣的特點，研究三峽庫區(qū)大規(guī)模無線傳感器水環(huán)境監(jiān)測網絡的覆蓋特性，并考慮網絡的實現(xiàn)成本，充分利用國內外已取得的研究成果，將人工魚群算法應用到無線傳感器網絡覆蓋優(yōu)化中，以人工魚群算法為基礎，針對人工魚群算法存在后期收斂慢、求解精度不高和易陷入局部值的缺陷，提出了帶反饋策略的混沌人工魚群算法。該算法將具有遍歷性的混沌搜索引入到基本人工魚群算法，在人工魚搜索結果的基礎上進行混沌局部搜索，避免了算法陷入局部值；同時反饋策略的加入避免了算法后期迂回搜索，提高了收斂速度和求解精度。 在完成上述算法研究的基礎上，傳統(tǒng)的覆蓋優(yōu)化策略未考慮傳感器節(jié)點能耗均衡且最小化的冗余節(jié)點覆蓋并不能代表網絡能耗的最小化，提出基于能量管理的無線傳感器網絡覆蓋優(yōu)化策略，以覆蓋率最大化和網絡能耗最小化搭建數(shù)學模型。仿真結果表明該策略能夠在保證覆蓋率的前提下能延長網絡的生命周期，節(jié)省了網絡能量。
[Abstract]:With the smooth progress of the three Gorges Project and the acceleration of the surrounding urbanization, the status quo and changes of the ecological environment in the three Gorges Reservoir area have been widely concerned at home and abroad, and the existing monitoring equipment. The methods and means can not meet the requirements of the task, so it is urgent to improve the ability of environmental monitoring in the three Gorges Reservoir area. Because wireless sensor networks have the characteristics of low cost, self-organization, flexible communication, remote real-time monitoring and so on, the application of wireless sensor networks in environmental monitoring has become a research hotspot. Based on the application background of water environment monitoring in the three Gorges Reservoir area, aiming at the limited energy of wireless sensor network nodes, this paper focuses on the coverage optimization strategy and the balance of node energy to prolong the network life cycle. Based on the analysis of the existing research results, a large scale wireless sensor network coverage optimization strategy suitable for water environment monitoring in the three Gorges Reservoir area is proposed. According to the characteristics of large area and wide distribution of water environment monitoring in the three Gorges Reservoir area, the coverage characteristics of the large-scale wireless sensor water environment monitoring network in the three Gorges Reservoir area are studied, and the realization cost of the network is considered. The artificial fish swarm algorithm is applied to the wireless sensor network coverage optimization based on the artificial fish swarm algorithm, aiming at the late convergence of artificial fish swarm algorithm. In this paper, a chaotic artificial fish swarm algorithm with feedback strategy is proposed, which introduces the ergodicity chaotic search to the basic artificial fish swarm algorithm. Based on the results of artificial fish search, chaotic local search is carried out to avoid the algorithm falling into local value. At the same time, the addition of feedback strategy avoids the tortuous search in the later stage of the algorithm, and improves the convergence speed and the accuracy of the solution. On the basis of the above algorithms, the traditional coverage optimization strategy does not consider the sensor node energy balance and minimum redundant node coverage can not represent the minimum network energy consumption. An energy management based coverage optimization strategy for wireless sensor networks is proposed. The simulation results show that the proposed strategy can prolong the network life cycle and save the network energy under the premise of the coverage maximization and the network energy consumption minimization.
【學位授予單位】：重慶大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TP212.9;TN929.5

【參考文獻】

相關期刊論文 前10條

1 胥楚貴;鄧曉衡;鄒豪杰;;無線傳感器網絡覆蓋空洞修復策略[J];傳感技術學報;2010年02期

2 李成岳;申鉉京;陳海鵬;孫恩巖;;無線傳感器網絡中LEACH路由算法的研究與改進[J];傳感技術學報;2010年08期

3 劉鐵流;巫詠群;;基于能量優(yōu)化的無線傳感器網絡分簇路由算法研究[J];傳感技術學報;2011年05期

4 黃月;吳成東;張云洲;司鵬舉;;基于移動節(jié)點的無線傳感器網絡覆蓋優(yōu)化[J];東北大學學報(自然科學版);2012年02期

5 鄭丙輝;王麗婧;龔斌;;三峽水庫上游河流入庫面源污染負荷研究[J];環(huán)境科學研究;2009年02期

6 王晟;王雪;畢道偉;;無線傳感器網絡動態(tài)節(jié)點選擇優(yōu)化策略[J];計算機研究與發(fā)展;2008年01期

7 鄭懷禮,袁宗宣,鄭澤根;論三峽庫區(qū)的水環(huán)境問題和水環(huán)境保護對策[J];重慶建筑大學學報;1999年04期

8 田東平;;基于Tent混沌序列的粒子群優(yōu)化算法[J];計算機工程;2010年04期

9 仲元昌;趙貞貞;王恒;宋揚;;無線傳感器網絡中的覆蓋優(yōu)化算法[J];計算機工程;2012年08期

10 包旭;巨永鋒;;面向節(jié)點失效的無線傳感器網絡覆蓋空洞修復算法[J];計算機測量與控制;2011年06期

本文編號：1440308