Soft data detection algorithms for an iterative turbo coded MIMO OFDM systems

• Published in: 2004 38th Asilomar Conference on Signals, Systems and Computers Vol. 1; pp. 1193 - 1197 Vol.1
• Main Authors: Kim, K.J., Reid, T., Iltis, R.A.
• Format: Conference Proceeding
• Language: English
• Published: Piscataway NJ IEEE 2004
• Subjects: Antennas; Applied sciences; Channel capacity; Coding, codes; Detection algorithms; Detectors; Exact sciences and technology; Information, signal and communications theory; Iterative decoding; MIMO; Multiplexing; OFDM; Radiocommunications; Receiving antennas; Signal and communications theory; Telecommunications; Telecommunications and information theory; Transmitters; Transmitters. Receivers; Transmitting antennas; Turbo codes; Performance evaluation; MIMO system; Channel capacity; Bit error rate; Wireless telecommunication; Measurement sensor; Iterative method; Receiver; Decoding circuit; Turbo code; Algorithm; Transmitting antenna; Coding; QR factorization; Orthogonal frequency division multiplexing; Antenna array; High rate transmission
• ISBN: 0780386221; 9780780386228
• DOI: 10.1109/ACSSC.2004.1399330

The use of multiple antennas at both transmitter and receiver can significantly increase the channel capacity. By using orthogonal frequency division multiplexing (OFDM) transmission techniques, a MIMO-OFDM system can achieve high spectral efficiency, which makes it an attractive candidate for high-data-rate wireless applications. In this paper, we propose an iterative soft data detection algorithm, called the soft-QRD-M structure for the MIMO OFDM system, which can incorporate a kind of coding. Iteratively communicating the soft informations between the proposed MIMO data detector and the Turbo decoder, we can improve the BER performance significantly.