http://www.seipub.org/ijc/RSS.aspxen-US2016-0<p class="abstract">Channel Estimation in an OFDM System for Undersea Acoustic Links</p><ul><li>Pages 1-11</li><li>Author Sabna N.P. R. Saseendran Pilla</li><li>Abstract Undersea acoustic links have applications in pollution monitoring, environmental data collection, offshore and coastal surveillance, etc.. The rapidly increasing application of Orthogonal Frequency Division Multiplexing for undersea acoustic links demands techniques for eliminating the various synchronization issues at the receiver. OFDM also requires an estimate of the channel parameters at the receiver for undoing the channel effects. This paper presents techniques for handling the synchronization issues as well as a method for estimating the channel state information, exploiting the sparsity of the channel impulse response. The results indicate that these techniques are promising and decisive in characterizing the OFDM underwater channel.</li></ul>http://www.seipub.org/IJC/PaperInfo.aspx?ID=33576International Journal of Communicationshttp://www.seipub.org/IJC/PaperInfo.aspx?ID=33576