Energy Efficient and Reliable Data Transfer Routing in Wireless Body Area Sensor Networks

Wireless body area network, WBAN, is a network designed by low-power devices that are located on, in or around the human body and are used to monitor physiological signals and motion for medical, personal entertainment and other applications and purposes In Wireless Body Area Network, Sensor nodes are typically powered with battery, which have insufficient life time. Even though renewable energy sources like solar energy or piezo-electric means are used as supplementary energy in WSNs, it is still some degree of reserve to consume energy judiciously. Proficient energy routing is thus a key requirement for a trustworthy design of a wireless sensor network. We propose a reliable, power efficient and high throughput routing protocol for wireless body area networks (WBANs). We use hierarchical routing to minimize energy consumption and maximizing network lifetime. Selection of cluster head is based on distance and residual energy to maximize network lifetime. Simulation results shows that proposed protocol named EERR enhance the network stability period and nodes stay alive for longer period. Longer stability period contributes high packet delivery to sink which is major interest for continuous patient monitoring. Simulation has been done in MATLAB and results are compared with existing hierarchical protocol such as M-ATTEMPT.