中国传媒大学学报（自然科学版）
中國傳媒大學學報（自然科學版）
중국전매대학학보（자연과학판）
Journal of Communication University of China Science and Technology
2015年
5期
54-59
,共6页
LEACH%无线传感网络%分簇%簇头选择%能耗%生存周期
LEACH%無線傳感網絡%分簇%簇頭選擇%能耗%生存週期
LEACH%무선전감망락%분족%족두선택%능모%생존주기
LEACH%WSN%clustering%selection of CH%energy consumption%lifetime of WSN
LEACH( Low-Energy Adaptive Clustering Hierarchy低功耗自适应分簇)算法可以有效地解决传感器节点能量限制的问题，显著地延长整个网络的生命周期。但在分簇簇头的选择过程中仅考虑此节点是否在之前的轮中担任过簇头节点，并未考虑节点剩余的能量与其所处的位置，使得簇头的选择并非最优。针对这种情况，本文在原有LEACH路由算法的基础上从节点剩余能量与节点分布位置两方面对其进行优化，提出了一种新的路由优化算法为I-LEACH。仿真结果显示I-LEACH较LEACH协议延长了网络生存周期，降低了网络总体能耗，使无线传感网的整体性能得到一定提升。
LEACH( Low-Energy Adaptive Clustering Hierarchy低功耗自適應分簇)算法可以有效地解決傳感器節點能量限製的問題，顯著地延長整箇網絡的生命週期。但在分簇簇頭的選擇過程中僅攷慮此節點是否在之前的輪中擔任過簇頭節點，併未攷慮節點剩餘的能量與其所處的位置，使得簇頭的選擇併非最優。針對這種情況，本文在原有LEACH路由算法的基礎上從節點剩餘能量與節點分佈位置兩方麵對其進行優化，提齣瞭一種新的路由優化算法為I-LEACH。倣真結果顯示I-LEACH較LEACH協議延長瞭網絡生存週期，降低瞭網絡總體能耗，使無線傳感網的整體性能得到一定提升。
LEACH( Low-Energy Adaptive Clustering Hierarchy저공모자괄응분족)산법가이유효지해결전감기절점능량한제적문제，현저지연장정개망락적생명주기。단재분족족두적선택과정중부고필차절점시부재지전적륜중담임과족두절점，병미고필절점잉여적능량여기소처적위치，사득족두적선택병비최우。침대저충정황，본문재원유LEACH로유산법적기출상종절점잉여능량여절점분포위치량방면대기진행우화，제출료일충신적로유우화산법위I-LEACH。방진결과현시I-LEACH교LEACH협의연장료망락생존주기，강저료망락총체능모，사무선전감망적정체성능득도일정제승。
LEACH ( Low-Energy Adaptive Clustering Hierarchy) can effectively solve the problem which is the energy of sensor node is limited,and significantly extend the lifetime of the whole network. But in the process of the election of cluster head ( CH) only consider whether this node in the previous round was served as CH nodes,don’ t consider the node residual energy and location,making CH selection is not optimal. In view of this kind of situation,this paper have improved LEACH routing algorithm from the as-pects of node location and residual energy of nodes, therefore an optimized algorithm is proposed and called I-LEACH. The simulation results show that I-LEACH extend the network lifetime much longer than LEACH and reduce the network total energy consumption,so making the performance of WSN have been promoted.
