文章基本信息

标题：GRESS: Based on Gradient and Residual Energy of Sleep Scheduling in the Distributed Sensor Networks
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作者：Liqun Shan ; Yanchang Liu ; Wei Wei 等
期刊名称：Research Journal of Information Technology
印刷版ISSN：1815-7432
电子版ISSN：2151-7959
出版年度：2011
卷号：3
期号：2
页码：132-139
DOI：10.3923/rjit.2011.132.139
出版社：Academic Journals Inc., USA
摘要：The most critical issue is how to increase network lifetime and scalability and balance load on sensor nodes in the Wireless Sensor Networks (WSNs). This study presented a new method for data gathering that maximizes lifetime for distributed sensor networks. It involves the following parts. First, nodes organize themselves into several static clusters by a given clustering algorithm. Second, clusters are formed only once but the role of cluster head is optimally scheduled among the cluster members according the gradient and residual energy. A single cluster head is in active state and non cluster head is in sleep or listen state with different sleep period. Third, after cluster-heads are selected, they form a backbone network to periodically collect, aggregate and forward data to the base station. Comparing with non-sleep and synchronous sleep by the MATLAB, significant lifetime extension is obtained with the use of this method.