Dual-forwarding routing protocol for wireless body area network based on energy harvesting

Abstract

As the wireless body area network (WBAN) plays an increasingly important role in smart medical and disease detection, it is generally realized that the limited sensor energy in the wireless body area network cannot cope with longer work hours. However, frequent replacement of sensors not only leads to increased costs, but also brings many inconveniences to the wearer. This paper proposes a routing protocol based on Energy Harvesting and Dual Forwarding node Selection (EH-DFS). By dividing sensor nodes into two groups, each group calculates the link cost function based on residual energy, link quality, signal-to-noise ratio and distance between nodes to select the optimal forwarding node. Energy harvesting technology can provide continuous additional energy to the sensor. Simulation experiments and performance analysis show that the protocol is superior to the existing EH-RCB, EERP, ELR-W protocols in terms of network life, end-to-end delay and data throughput.