Traffic adaptive IEEE 802.15.4 MAC for wireless sensor networks

IEEE 802.15.4 is a new standard uniquely designed for low rate wireless sensor networks(WSNs). It targets low data rate, low power consumption and low cost wireless networking, and offers device level wireless connectivity. In this paper, the general coordinated sleeping algorithm and the traffic-adaptive algorithm are combined in IEEE 802.15.4 MAC protocol to achieve high energy efficiency and high performance at the same time. By observing that the sporadic traffic characteristic of WSNs, we propose the traffic-adaptive IEEE 802.15.4 MAC with coordinated sleeping algorithm. Through the various performance studies, the proposed algorithm shows significant performance improvements in wireless sensor networks.(1)