An energy-efficient congestion avoidance priority-based routing algorithm for body area network

Abstract

In this paper, a routing algorithm for human body area network has been proposed. This algorithm is energy efficient and further, avoids congestions to some extent. One of the main challenges of WBAN is the node life time, i.e. energy level of the nodes. The nodes are selected in this algorithm for communication depending upon three factors that are energy level, number of hops the packet needs to travel while opting that node, and finally the request queue length which is actually the total number of packets traversed through the node for last t time interval. The first factor is for the shortest path to the destination as human body area network consisting of critical data that is needed to be sent fast, however, annexed by other factors as well,namely life time of nodes and congestion-free communication since the shortest path may be congested sometime because of over burden of data. The second factor actually considers the energy level of nodes and the third factor tries to avoid the path which may already been followed by huge numbers of packets.