电子科技大学学报
電子科技大學學報
전자과기대학학보
JOURNAL OF UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY OF CHINA
2014年
2期
235-240
,共6页
自适应算法%均衡能耗%数据存取%生命周期%无线传感器网络
自適應算法%均衡能耗%數據存取%生命週期%無線傳感器網絡
자괄응산법%균형능모%수거존취%생명주기%무선전감기망락
adaptive algorithm%balancing energy consumption%data brokerage%lifetime%wireless sensor networks
提出了一种能耗均衡的自适应数据存储算法，将数据尽量存储在适合查询的位置。首先建立基于网格的网络模型，然后分析采集节点与初始存储节点、查询节点之间的位置关系，存储模式可在集中存储和分布存储之间切换。算法引入了虚拟扩展网格和能量分级消耗的机制，可有效均衡网络能耗。实验结果表明，该算法的节点能耗、生命周期和丢包率相比于GHT算法有一定的改善。
提齣瞭一種能耗均衡的自適應數據存儲算法，將數據儘量存儲在適閤查詢的位置。首先建立基于網格的網絡模型，然後分析採集節點與初始存儲節點、查詢節點之間的位置關繫，存儲模式可在集中存儲和分佈存儲之間切換。算法引入瞭虛擬擴展網格和能量分級消耗的機製，可有效均衡網絡能耗。實驗結果錶明，該算法的節點能耗、生命週期和丟包率相比于GHT算法有一定的改善。
제출료일충능모균형적자괄응수거존저산법，장수거진량존저재괄합사순적위치。수선건립기우망격적망락모형，연후분석채집절점여초시존저절점、사순절점지간적위치관계，존저모식가재집중존저화분포존저지간절환。산법인입료허의확전망격화능량분급소모적궤제，가유효균형망락능모。실험결과표명，해산법적절점능모、생명주기화주포솔상비우GHT산법유일정적개선。
In order to store data in the most suitable location, an adaptive data brokerage method is proposed in wireless sensor networks. First, a grid-based network model is established, and the relationship of location between acquiring node, sink and initial storage node is analyzed, the storage method can switch between the local storage and data-centric storage. The method is based on virtual extended grid and it can balance the total energy consumption. Compared with geographic Hash table (GHT), the simulation results show that the method can obtain better performance in terms of total energy consumption and network lifetime and packet loss rate.
