Tree based energy efficient routing scheme for body area network

Evolution of technology and day by day advancements in telecommunication, wireless communication, wireless sensors, and other technologies has led to development of such miniaturized sensors which can be implanted in or on the human body. This innovative and exhilarating area of research is Wireless Body Area Network (WBAN). Low power consumption and reliable data transmission is primary requirement in medical systems using WBAN. In this paper, we firstly explore efficient routing algorithm for WBAN and then it is modified to add energy factor with respect to routing gradient, energy aware expected transmission. Energy Efficient Tree Routing (EETR) algorithm is proposed for WBAN and it is compared with Ad-hoc On Demand Distance Vector Routing (AODVR) algorithm. This algorithm can jointly address the issue of low-power consumption and end-to end delay for reliable data transmission by modifying current algorithm so that nodes can robustly choose routing paths by minimizing the power levels for transmission. Considerable experiments are conducted using OMNET++ 4.5 as environment to ensure the successful implementation of proposed EETR algorithm by measuring number of factors like power consumption and Packet Reception Ratio (PRR). Experimental result analysis shows that EETR algorithm is beneficial than AODVR algorithm for energy efficient health monitoring using WBANs. In particular, single hop star topology and tree based multi-hop tree topology is compared with the help of extensive experiments conducted.