Reliable and Energy Efficient Protocol for Wireless Sensor Network
Low-power design is one of the most important issues in wireless sensor networks (WSNs), while reliable information transmitting should be ensured as well. Transmitting power (TP) control is a simple method to make the power consumption down, but excessive interferences from potential adjacent operating links and communication reliability between nodes should be considered. In this paper, a reliable and energy efficient protocol is presented, which adopts adaptive rate control based on an optimal TP. A mathematical model considering average interference and network connectivity was used to predict the optimal TP. Then for the optimal TP, active nodes adaptively chose the data rate with the change of bit-error-rate(BER) performance. The efficiency of the new strategy was validated by mathematical analysis and simulations. Compared with 802.11 DCF which uses maximum unified TP and BASIC protocol, it is shown that the higher average throughput can achieve while the energy consumption per useful bit can be reduced according to the results.
wireless sensor networks reliable communication energy efficient optimal transmitting power adaptive link control
KAN Baoqiang CAI Li XU Yongjun
College of Science,Air Force Engineering University,Xi”an 710052,China;Key Laboratory of Computer Sy College of Science,Air Force Engineering University,Xi”an 710052,China Key Laboratory of Computer System and Architecture,Institute of Computing Technology,Chinese Academy
国内会议
北京
英文
95-100
2007-07-15（万方平台首次上网日期，不代表论文的发表时间）