Energy-aware channel model for underwater acoustic networks

Interest in Underwater Acoustic Networks (UAN) has grown rapidly with the desire to monitor the ocean, depending on the potential capability of UAN to support a large variety of applications, such as monitoring of equipment and natural events. Moreover, these applications may have requirement for saving energy at each node adaptively in the underwater power limited system. In this paper, we establish an energy-aware underwater channel model based on passive sonar equation, with some specific characteristics included, such as Source Level, Transmission Loss, Ambient-Noise Level and Detection Threshold which have not been extensively considered in the UAN environment before. Moreover, Our proposed model is not only simple enough to be easily operated, but also useful in guiding higher layer protocol design. Finally, we implement the proposed channel model in MATLAB.