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内蒙古自治区呼和浩特市赛罕区大学西街235号 邮编: 010021
作者机构:Texas State Univ Dept Comp Sci San Marcos TX 78666 USA
出 版 物:《JOURNAL OF INTERCONNECTION NETWORKS》 (国际互联网络期刊)
年 卷 期:2012年第13卷第3-4期
页 面:1250013-1250013页
核心收录:
学科分类:08[工学] 0812[工学-计算机科学与技术(可授工学、理学学位)]
主 题:Wireless sensor network ant colony optimization in-network data aggregation network lifetime
摘 要:Energy efficiency is an important issue of wireless sensor networks. In-network data aggregation is a data collection technique that improves energy efficiency and alleviates congestive routing traffic by reducing data forwarding in wireless sensor networks. Ant-colony aggregation is a distributed algorithm that provides an intrinsic way of exploring the search space to optimize settings for optimal data aggregation. This paper aims to refine the heuristic function and the aggregation node selection method to maximize energy efficiency and to extend network lifetime. Two proposed algorithms are shown to yield longer maximum lifetime than the conventional algorithm with the same hop-count delay. One of the proposed algorithms is shown to have improved scalability than the conventional algorithm.