期刊名称：International Journal of Multimedia and Ubiquitous Engineering
印刷版ISSN：1975-0080
出版年度：2014
卷号：9
期号：8
页码：313-324
DOI：10.14257/ijmue.2014.9.8.29
出版社：SERSC
摘要：Wireless sensor networks (WSNs) are usually deployed in a remote or inaccessible area to be monitored and their duty is to sense raw data and then disseminate them to some remote base stations. It is desired that data transmission is energy efficient and energy consumption is balanced among all nodes so that lifetime of WSNs can be prolonged. In this paper, we propose a novel routing algorithm named energy cost and residual energy oriented (ECREO) for WSNs based on geographical and energy aware routing (GEAR). The ECREO mechanism can not only be used as a flat protocol in small-scale network but also can be integrated in many hierarchical routing protocols. ECREO algorithm takes advantage of the sufficient energy of BS and makes a good tradeoff between energy cost and residual energy. It adopts improved Dijkstra algorithm to find the best scheme. Simulation results show that ECREO algorithm can well balance energy efficiency of each node and avoid hot spot phenomenon. The network lifetime can be prolonged twice based on our ECREO algorithm than other routing algorithms.
关键词：wireless sensor networks; data dissemination; clustering; routing
