Design of novel Channel Propagation model for underwater acoustic wireless communication inside a tank

Sweta S Panchal, Sagarkumar Patel, Sandipkumar Panchal, Jayesh Pabari

Abstract The absorption of underwater acoustic signal travelling in tank filled with water having saturation of sodium chloride is demonstrated by model developed specifically for attenuation. The simulation results of developed model for attenuation is performed using soft computing technique like fuzzy logic (MATLAB). The acoustic signal propagation in underwater acoustic communication results in multipath signals, this occurs obstacle in communication. Due to physical geometry of bounded medium, the acoustic signal suffers from more reflections compared to unbounded medium like sea. The Multipath propagation model proposed path lengths of multiple reflected signals. Development of multipath propagation model helps to remove problem of ISI, latency time of protocol and arrival time lag. To remove such problems, knowledge of number of multipath components is of prime importance. The empirical relation is developed between range of communication and number of multipaths. Because behaviour of acoustic sensors is completely different under water than terrestrial sensors, this arises requirement for developing topology of sensor network. Thus the acoustic model is developed which is suitable to work at acoustic frequency and sustain losses that occurs due to physical phenomena. The area of coverage of received signal in terms of percentage is devised by wireless channel propagation model. Ultimately underwater acoustic signal channel propagation model is demonstrated that will help to focus on faithful underwater communication and accordingly proceed for its application.