Notice of Retraction Application of Turbo code in underwater acoustic communication

Long multi-path spreads and rapid time variations are the characteristic of underwater Acoustic channel. These characteristic limits the data rate of reliable communication systems, and require sophisticated equalization and coding technique, so Turbo coder/decoder is introduced. In this paper, a model including time-varying fading, multi-path and additive noise for underwater acoustic channel is built; some improved algorithms for turbo decoding are used in it. Simulation results show that: signal noise ratio at the range of that accepted by underwater acoustic communication, the performance of turbo is excellent. Then the sophisticated equalization is used with turbo coding technique together, the performance of communication is improved obviously.

[1]  Claude Berrou,et al.  Improving the distance properties of turbo codes using a third component code: 3D turbo codes - [transactions letters] , 2009, IEEE Transactions on Communications.

[2]  Dan Raphaeli,et al.  Combined turbo equalization and turbo decoding , 1997, GLOBECOM 97. IEEE Global Telecommunications Conference. Conference Record.

[3]  Liu Jian-jun.  New Iterative Stopping Algorithm Suited for Turbo Decoding , 2008 .

[4]  Majid Ahmadi,et al.  A linear log-MAP algorithm for turbo decoding and turbo equalization , 2005, WiMob'2005), IEEE International Conference on Wireless And Mobile Computing, Networking And Communications, 2005..

[5]  Ibrahim Al-Mohandes,et al.  Iteration reduction of turbo decoders using an efficient stopping/cancellation technique , 2002, 2002 IEEE International Symposium on Circuits and Systems. Proceedings (Cat. No.02CH37353).

[6]  K. Buyukatak,et al.  Performance of turbo decoding for time-varying multipath channels , 2003, International Conference on Recent Advances in Space Technologies, 2003. RAST '03. Proceedings of.

[7]  Wang Yi-jun.  A simple iteration stopping criterion for Turbo code , 2006 .

[8]  Xu Xiao-mei.  Study on the Anti-multipath Performance of Turbo Code over Shallow Water Acoustic Channels , 2006 .