Joint Power and Temperature Aware Routing for implant wireless body area networks

In healthcare IoT, there is a vogueing need for better performing monitoring and reporting services of both medical and non-medical applications. Off late, the solutions are stemming from wireless body area networks (WBAN). Keen, fast, and reliable management of clinical information at every level of the network opens room for researchers to work on the network level of WBAN. Being in the era of Implant Medical Devices, the challenges are versatile. Obtaining the desired throughput, combating node heating, and improvement in energy efficiency are a few challenges. Interestingly, the heterogenous nature of nodes in a WBAN thrusts the next hop selection at the intra-WBAN level advancing into a non-persistent hard problem. To this, we present a Joint Power and Temperature Aware Routing (JPTAR) Scheme with two elements. First is an analytic hierarchy process-based next hop selection method that accommodates, link quality, residual energy, closeness to sink, and node heating for the process. To this an imperceptibly, low computation algorithm for received signal strength indicator (RSSI) estimation-based transmission power control is also added to ensure an optimized energy expenditure. Requisite elements of WBAN network management like QoS goals of emergency data and redundancy removal in transmissions are inherently part of the proposed work. The performance metrics like network lifetime, node temperature rise, throughput, end-to-end delay, and computation time are acquired under the worst-case scenario. The obtained results depict that the proposed JPTAR scheme outperforms state-of-the-art reactive multi-hop routing algorithms (MATTEMPT and SIMPLE).