Minimization of Collision Through Retransmission and Optimal Power Allocation in Wireless Sensor Networks (WSNs)

The periodic data collection and energy consumption are the main issue for collision in wireless sensor networks, which generally rely on non-renewable energy sources. In recent days, the energy harvesting sources are based on solar, wind, and vibration for harvesting electric energy. The sensor nodes are unable to communicate with other nodes due to an unsteady supply of energy from energy harvesting sources, whereas a node cannot predict an energy level of nearer nodes that can receive a transmitted data packet from it. Sometimes the probability of losing or collision of data packets in the target node is more due to insufficient power supply. This proposed paper is designed to collect data by using protocols like probabilistic retransmission (PRT) and also probabilistic retransmission (PRT) with collision impact (PRT-CI), in addition to the supply of optimal power allocation source to sensor nodes which enhances the performance of the overall process. The number of data packets is retransmitted on the probability of reception using PRT as well as the collision impact (PRT-CI) evaluates the data packet with a response probability of each node.