Submerged or under water acoustic communication (UWAC) is an intriguing area in communication research where we can expect to get a high information rate, a high throughput and a low latency which frequently is an exceptionally difficult assignment. In this work, we outline an OFDM receiver system that is reasonable for submerged acoustic communication in view of adaptive modulation and Kalman filter based channel estimation. We have concentrated on the efficient modulation techniques like QPSK, DPSK and 16-QAM which are the most appropriate for adaptive techniques based on the SNR values to upgrade rate of data. Likewise, we have utilized the Kalman filter for channel estimation, which is a linear filter and gives us the best channel information even in the presence of channel noise. Through simulation results it was found that these modulation and channel estimation techniques are most appropriate to accomplish high data rate for submerged or underwater acoustic communication. Keywords: UWAC, OFDM, adaptive modulation, Kalman filter, channel estimationCite this Article Ravi Kumar MG, Mrinal Sarvagya. OFDM Receiver Design Based on Adaptive Modulation and Channel Estimation for Underwater Acoustic Communication. Recent Trends in Electronics & Communication Systems. 2017; 4(1): 7–16p.
