Energy-efficient two-hop transmission prioritization scheme for wireless body area networks

This paper presents an energy-efficient scheme for wireless body area networks that utilizes two-hop strategy to forward packets to the coordinator node. It selects a forwarder node with the lowest cost function based on remaining energy and distance to the coordinator node for minimum energy consumption. The scheme includes a decision rule that ensures delivery of important packets during low energy conditions. Simulation results show that the proposed scheme performs better than other transmission schemes in terms of network lifetime, network stability, total and average residual energy and number of packets transmitted in success.