Versatile low power media access for wireless sensor networks
SenSys '04 Proceedings of the 2nd international conference on Embedded networked sensor systems
An asynchronous scheduler to minimize energy consumption in wireless sensor networks
NEW2AN'11/ruSMART'11 Proceedings of the 11th international conference and 4th international conference on Smart spaces and next generation wired/wireless networking
Computer Networks: The International Journal of Computer and Telecommunications Networking
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Several synchronous and asynchronous MAC protocols have been proposed for wireless sensor networks (WSNs). Among these, RMAC [2] exploits a control frame named Pioneer (PION) to set up the path and transmit a data packet through multiple hops in a single duty cycle. In this letter, we numerically analyze the average packet latency of RMAC in a probabilistic manner, which can be easily applied for any multi hop transmission methods. To evaluate the accuracy of the numerical analysis, we compare the analysis results with the ns-2 simulation results. Then we mathematically obtain an optimal duty cycle value that minimizes the average power consumption while satisfying a given delay bound.