Iterative soft-QRD-M for turbo coded MIMO-OFDM systems

We propose an iterative soft detection algorithm based on the QR decomposition and M-algorithm (soft-QRD- M) for MIMO-OFDM incorporating error correction coding. The soft-QRD-M step generates approximate a posteriori probabilities (APPs) with significant computational savings over the optimal sum-product algorithm. Simulation results show comparable performance of the soft-QRD-M detector and SPA in a Turbo- coded iterative MIMO-OFDM receiver.

[1]  John D. Terry,et al.  Spherical space-time codes (SSTC) , 2001, IEEE Communications Letters.

[2]  Reinaldo A. Valenzuela,et al.  Detection algorithm and initial laboratory results using V-BLAST space-time communication architecture , 1999 .

[3]  Guosen Yue,et al.  Performance analysis and design optimization of LDPC-coded MIMO OFDM systems , 2004, IEEE Trans. Signal Process..

[4]  Hiroyuki Kawai,et al.  Likelihood function for QRM-MLD suitable for soft-decision turbo decoding and its performance for OFCDM MIMO multiplexing in multipath fading channel , 2004, 2004 IEEE 15th International Symposium on Personal, Indoor and Mobile Radio Communications (IEEE Cat. No.04TH8754).

[5]  Branka Vucetic,et al.  Joint Detection and Channel Estimation Algorithms for QS-CDMA Signals Over Time-Varying Channels , 2002 .

[6]  H. Vincent Poor,et al.  Iterative (turbo) soft interference cancellation and decoding for coded CDMA , 1999, IEEE Trans. Commun..

[7]  Stephan ten Brink,et al.  Achieving near-capacity on a multiple-antenna channel , 2003, IEEE Trans. Commun..

[8]  Jiang Yue,et al.  A QRD-M/Kalman filter-based detection and channel estimation algorithm for MIMO-OFDM systems , 2005, IEEE Transactions on Wireless Communications.

[9]  Joachim Hagenauer,et al.  Iterative detection of MIMO transmission using a list-sequential (LISS) detector , 2003, IEEE International Conference on Communications, 2003. ICC '03..

[10]  X. Jin.  Factor graphs and the Sum-Product Algorithm , 2002 .

[11]  Bin Dong,et al.  A new class of soft MIMO demodulation algorithms , 2003, IEEE Trans. Signal Process..

[12]  Anthony S. Acampora,et al.  A reservation-based media access control (MAC) protocol design for cellular systems using smart antennas-part I. Flat fading , 2005, IEEE Transactions on Wireless Communications.

[13]  Didier Le Ruyet,et al.  Breadth first algorithms for APP detectors over MIMO channels , 2004, 2004 IEEE International Conference on Communications (IEEE Cat. No.04CH37577).

[14]  Hiroyuki Kawai,et al.  Adaptive control of surviving symbol replica candidates in QRM-MLD for OFDM MIMO multiplexing , 2006, IEEE Journal on Selected Areas in Communications.

[15]  Robert J. McEliece,et al.  The generalized distributive law , 2000, IEEE Trans. Inf. Theory.