Performance enhancement of wireless sensor network (WSN) with the implementation of Hybrid ARQ (HARQ) and Transmission Power Control (TPC)

The challenges of wireless sensor network (WSN) have commonly referred to error-prone and degraded in performances when it gets congested. One possible solution to mitigate the problem is by combining the technique of Hybrid ARQ (HARQ) with Transmission Power Control (TPC). This research experiments the combination techniques of HARQ error control with TPC in order to improve the performances of WSN with respect to latency, throughputs, packet loss, and energy consumption. The existing HARQ scheme and HARQ with TPC scheme will be simulated using Ns2 simulator and the result will be recorded. The output from simulations is collected and comparison between the two schemes is made. The results show that the scheme of HARQ with TPC have improved the performances of latency, packet loss, throughputs and energy consumption in several test cases such as changing number of nodes, packet sizes, localization and routing protocols.