文献类型：会议论文

英文题名：An energy-efficient physical layer adaptive modulation scheme for wireless sensor networks

作者：Yu, Yadong[1]; Zhu, Rong[2]; Dai, Jingjing[2]

机构：[1] Shaoxing University, Shaoxing, Zhejiang Province, 312000, China; [2] National Engineering Research Center for Multimedia Software, WuHan University, WuHan, 430079, China

会议论文集：2009 1st International Conference on Information Science and Engineering, ICISE 2009

会议日期：December 26, 2009 - December 28, 2009

会议地点：Nanjing, China

语种：英文

外文关键词：Adaptive modulation - Energy efficiency - Energy utilization - Network layers - Wireless sensor networks

外文摘要：Wireless Sensor Networks pose numerous design challenges. They require long term, robust sensing for many applications. One important challenge is to design sensor networks that have long system lifetimes. Since the radio has the greatest impact on the energy consumption of the WSNs node, we present a physical layer adaptive channel coding and modulation scheme to lower the number of retransmission of package, then decrease the number of retransmission data because of error. So the energy consumption of the WSNs node can be saved and lifetime of the network is been extended. Experiment results show that the total amount of bits that are sent can be reduced by employing this scheme. ?2009 IEEE.