Multi-hop Wireless Recharging Sensor Networks Optimization with Successive Interference Cancellation

Abstract

Wireless sensor networks (WSNs) are constrained by limited battery energy and channel utilization. Thus, ephemeral network lifetime and low channel utilization are widely regarded as the performance bottlenecks. In this paper, we investigate the operation of multi-hop recharging sensor wireless networks (WRSNs) with successive interference cancellation (SIC) technique. In WRSNs, the power of the sensor nodes are not constants, but the receiving power of nodes need to be sorted. To solve the problem, we first establish a minimum energy routing, unify nodes transmission rate for determining the power of transmitting and time Schedule scheme. Then, we analyze an optimization problem with objective of maximizing the mobile charger’s (MC) vacation time over the cycle time. Subsequently, we develop a near-optimal solution and verify its feasible performance. Simulation results show that SIC can achieve better throughput (about increasing 350%–550% compared with inference avoid) and no extra energy consumption in multi-hop WRSNs.