WLC12-3: An Adaptive TDMA Control Phase Algorithm for Wireless Sensor Networks

This paper proposes a dynamic and adaptive algorithm (NACPA) to control the control phase of TDMA-based MAC that can be used in cluster-based wireless sensor networks. This algorithm takes advantage of the wireless sensor hardware feature and presents a more accurate while simpler means to calculate the number of contention nodes in one round. Based on the analysis of the features of contention probability against the number of contention nodes, this algorithm can significantly reduce its computation complexity rendering it practically feasible for resource-constrained sensor networks.