Title :
Blind equalization and decoding for unitary space-time modulations
Author :
Aktas, Emre ; Mitra, Urbashi
Author_Institution :
Dept. of Electr. Eng., Ohio State Univ., Columbus, OH, USA
Abstract :
Blind equalization and decoding of unitary space-time modulations are considered. A blind adaptive equalization method was put forward for the codes proposed by Hochwald et al. (Sept. 2000). The stationary points of the said method are investigated. A modified version of the algorithm is provided to avoid undesired convergence. A generalized likelihood ratio test decoder is presented for the equalizer outputs. Semi-analytic methods are developed to investigate pairwise error probability with large number of receive antenna assumptions.
Keywords :
adaptive equalisers; blind equalisers; channel coding; decoding; error statistics; modulation coding; space-time codes; M-CMA; adaptive equalization; blind equalization; decoding; generalized likelihood ratio test decoder; matrix constant modulus algorithm; noncoherent decoding; pairwise error probability; receive antenna assumptions; semianalytic method; stationary points; undesired convergence; unitary space-time modulation; Blind equalizers; Convergence; Decoding; Fading; Intersymbol interference; MIMO; Modulation coding; Receiving antennas; Space time codes; Transmitting antennas;
Conference_Titel :
Signals, Systems and Computers, 2002. Conference Record of the Thirty-Sixth Asilomar Conference on
Conference_Location :
Pacific Grove, CA, USA
Print_ISBN :
0-7803-7576-9
DOI :
10.1109/ACSSC.2002.1197265