HT-LEACH: An improved energy efficient algorithm based on LEACH

Energy efficient is critical issue for wireless sensor networks (WSNs). LEACH achieves network energy balance via randomly selecting cluster heads periodically. In this paper, we propose hierarchy tree routing based on LEACH (HT-LEACH). The algorithm defines three phrases in each round: cluster formation, hierarchy tree routing formation and steady-state. In the second phrase, hierarchy tree routing is built in cluster heads. Simulation has been done in MATLAB and the results show that the proposed algorithm has a better performance in balancing nodes energy.