Balance the Energy Consumption of Geographic Hashing Location Service in Wireless Sensor and Actor Networks

Abstract

Location service is an efficient solution to handle actor mobility in wireless sensor and actor networks. Geographic hashing location service (GHLS) is a flat hashing-based protocol which has better energy efficiency than other location service protocols. Nevertheless, GHLS suffers from unbalanced energy consumption due to the fixed hashed region. In this paper, we propose a new protocol termed as GHLS-R² to achieve load balance in two aspects: location server rotation and energy-aware geographic routing. Simulation results show that GHLS-R² protocol can effectively balance the energy consumption, and hence prolong the network lifetime significantly.