Optimized Incremental Cooperative Communication for Underwater Acoustic Sensor Networks

In this article, we present incremental cooperative communication (ICC) for underwater acoustic sensor networks (UANs). This method uses adjacent active sensor nodes during the retransmission of DPs. Subsequently, a mathematical model to calculate the energy efficiency (EE) for ICC in UANs by examining the influences of distance-dependent usable bandwidth, ambient noises, and acoustic spreading is presented. Numerical and simulation results show that ICC significantly improves EE compared to the existing techniques over considerable distances between transceiving nodes. We later frame an optimization problem to optimize transmission power and packet size to improve EE over transmission distance further. The results confirm that the optimized can further increase the EE of UANs.