Research Of Packet Size Optimization Algorithm In Underwater Wireless Sensor Networks

UWSN is a self-organizing system, which are composed of acoustic communication and computing power sensor nodes. And recently, it has become the research focus, due to its widely application in the field of resource exploitation, environmental protection, salvage and marine military activities. However, UWSN with limited energy and high latency characteristics have been seriously hampered its development and application. Therefore, a comprehensive study on the energy efficiency and throughput helps to improve communication performance. The communication between nodes causes the main energy consumption of UWSN. Packet size which is the major communication parameter will influence the energy efficiency and throughput directly.Therefore, the model of this paper is constructed based on the energy efficiency and throughput, and it is a key topic to optimize packet size so as to maximize energy efficiency and throughput.The main innovations in this paper are as follows:(1)This paper constructed an underwater acoustic communication energy efficiency and throughput of the mathematical model, to reveal the relationship between EET and packet size, communication transceiver unit, acoustic communication protocols and channel encoding.(2)This paper research the Simultaneous Perturbation Stochastic Approximation algorithm (SPSA), and combining the excellent features of SPSA and energy efficiency and throughput (EET), presents the SPSA based packet size optimization algorithm. Meanwhile, EET accuracy is defined to evaluation the performance of the algorithm in statistical significance. In addition, high accuracy of solution and high efficiency of computational are proved by numerous experiment results.