期刊名称：International Journal of Software Engineering and Its Applications
印刷版ISSN：1738-9984
出版年度：2008
卷号：2
期号：2
出版社：SERSC
摘要：How to provide low energy consumption and high packet delivery ratio are considered the major issues in the protocol design for the Wireless Sensor Networks (WSNs). The main focus of this paper is to reduce the number of data transmissions within the WSNs for decreasing the energy consumption of the sensor nodes. In the wired networks, the Steiner-Tree is regarded as the optimal approach for constructing the multicast structure for specific senders and receiver. However, the results can not be directly applied to the wireless environment. In this paper, an Energy Conserving Multicast Routing (ECMR) protocol is proposed to reduce the total number of relaying nodes for the construction of a multicast tree. It is designed to be a heuristic scheme since achieving a minimal cost multicast tree is considered an NP-Hard problem in the wireless broadcast environment. Moreover, the proposed algorithm is implemented on practical embedded platforms for performance evaluation. Comparing with the existing multicast routing protocol, the experimental results show that the proposed ECMR scheme can provide better energy conservation while the packet delivery ratio is still preserved.
