An Efficient Energy Aware MAC Protocol for Wireless Sensor Network

In wireless sensor network studies the main objective is minimizing the energy consumption so that the lifetime is maximized under the limited battery capacity constraints. In most event-driven surveillance applications, the end-to-end delay should also be minimized. In this paper we present a new BT-MAC (balanced energy-latency tradeoff Media Access Control) which reaches a good balance between energy efficiency and latency. Simulations of a surveillance application verify that the proposed method successfully improve both delay and energy efficiency of the medium access. The end-to-end network performance is also investigated and the results show that using the heuristic method proposed the overall network performance can be improved.