Relay selection and Optimization algorithm of Power allocation based on Channel Delay for UWSN

다국어 초록 (Multilingual Abstract)

In the light of the characteristics of random change that underwater sensor change by time, space and frequency, select the best relay node to improve communication quality and get the diversity gain. A new optimal relay selection method is proposed in this paper, by considering two indexes synthetically that channel gain and underwater acoustic communication long time delay to select the best relay node. Based on the best relay node and minimization of bit error rate to take optimal power allocation of source node and relay node to realize network error rate’s reduction of 1.81 dB so then improve the overall performance of the network.

목차 (Table of Contents)

• Abstract
• 1. Introduction
• 2. UWSN Relay Cooperative Communication System Model
• 3. Relay Selection and Power Allocation Optimization Based OnChannel and Delay in Underwater Sensor Networks
• 3.1. Optimal Relay Node Selection Method Based on Channel and Delay Synthesis Index
• 3.2. Power Allocation Optimization Algorithm Based On Optimal Relay
• 4. Experimental Results and Analysis
• 4.1. Selection of Optimal Relay Node Based On Channel and Delay Synthesis Index
• 4.2. Power Allocation Ratio Experiment Based On Optimal Relay
• 5. Conclusion
• Acknowledgements
• References