System Performance of Concatenated STBC and Block Turbo Codes in Dispersive Fading Channels

• Main Authors: Kam Tai Chan, Yinggang Du
• Format: Article
• Language: English
• Published: SpringerOpen 2005-05-01
• Series: EURASIP Journal on Advances in Signal Processing
• Subjects: block turbo code; space-time block code; concatenation; OFDM; convolutional turbo code.
• Online Access: http://dx.doi.org/10.1155/ASP.2005.844

A new scheme of concatenating the block turbo code (BTC) with the space-time block code (STBC) for an OFDM system in dispersive fading channels is investigated in this paper. The good error correcting capability of BTC and the large diversity gain characteristics of STBC can be achieved simultaneously. The resulting receiver outperforms the iterative convolutional Turbo receiver with maximum- a-posteriori-probability expectation maximization (MAP-EM) algorithm. Because of its ability to perform the encoding and decoding processes in parallel, the proposed system is easy to implement in real time.