Circlar Decoding and Sparse Channel Estimation for Underwater MIMO-OFDM

Abstract:

In UWA (underwater acoustic) communications, data rate is severely limited by the confined bandwidth source of aquatic channel. MIMO (Multiple-input Multiple-output) techniques can drastically improve the spectral efficiency, and have been a new point of reference in UWA commutations. For the estimation of UWA channel which is usually sparse, CS (compress sensing) along with STBC (space-time block code) is adopted with improved results. A design of mixing coding MIMO-OFDM is also presented in the proposed method. The validity and the dependability of this scheme are verified by Monte Carlo simulations.

• Periodical: Applied Mechanics and Materials (Volumes 198-199)
• Pages: 1748-1754
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.198-199.1748
• Online since: September 2012
• Authors: Wei Wang, Gang Qiao, Rehan Khan, Yue Wang, Song Zuo Liu
• Keywords: Channel Estimation, Combination, CS, STBC, UWA Communication

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