计算机工程
計算機工程
계산궤공정
COMPUTER ENGINEERING
2010年
8期
15-17,20
,共4页
蒋畅江%石为人%向敏%唐贤伦
蔣暢江%石為人%嚮敏%唐賢倫
장창강%석위인%향민%당현륜
无线传感器网络%分簇协议%粒子群优化算法%网络生存周期
無線傳感器網絡%分簇協議%粒子群優化算法%網絡生存週期
무선전감기망락%분족협의%입자군우화산법%망락생존주기
Wireless Sensor Network(WSN)%clustering protocol%Particle Swarm Optimization(PSO) algorithm%network lifetime
针对如何最优化组簇、降低簇内节点能耗的同时均衡整个网络能耗的问题,提出一种基于PSO的紧凑且具有能量感知和基站距离感知能力的集中式网络分簇协议,粒子适应值函数基于簇头和簇内节点的欧氏距离、簇头节点能量、簇头与基站距离这3个因素定义.仿真结果表明,该协议能有效降低节点死亡速度,延长网络生存周期.
針對如何最優化組簇、降低簇內節點能耗的同時均衡整箇網絡能耗的問題,提齣一種基于PSO的緊湊且具有能量感知和基站距離感知能力的集中式網絡分簇協議,粒子適應值函數基于簇頭和簇內節點的歐氏距離、簇頭節點能量、簇頭與基站距離這3箇因素定義.倣真結果錶明,該協議能有效降低節點死亡速度,延長網絡生存週期.
침대여하최우화조족、강저족내절점능모적동시균형정개망락능모적문제,제출일충기우PSO적긴주차구유능량감지화기참거리감지능력적집중식망락분족협의,입자괄응치함수기우족두화족내절점적구씨거리、족두절점능량、족두여기참거리저3개인소정의.방진결과표명,해협의능유효강저절점사망속도,연장망락생존주기.
Aiming at the problem that how to cluster all nodes with the optimization way, which can decrease the energy consumption of nodes, and balance the consumption of the entire network, a new centralized clustering protocol based on Particle Swarm Optimization(PSO) algorithm is proposed, which is compact, energy-aware and base-distance-aware. The definition of the fitness function of particle is based on three factors: the Euclidean distance between nodes and their associated cluster heads, the energy of cluster heads and the distance of cluster heads to base station. Simulation results demonstrate that the protocol can efficiently decrease the dead speed of nodes and prolong the network lifetime.
