Matrix computations (3rd ed.)
On convergence of the EM algorithmand the Gibbs sampler
Statistics and Computing
A theoretical framework for soft-information-based synchronization in iterative (Turbo) receivers
EURASIP Journal on Wireless Communications and Networking - Special issue on advanced signal processing algorithms for wireless communications
Complete-data spaces and generalized EM algorithms
ICASSP '93 Proceedings of the Acoustics, Speech, and Signal Processing, 1993. ICASSP-93 Vol 4., 1993 IEEE International Conference on - Volume 04
Convergence analyses and comparisons of Markov chain Monte Carloalgorithms in digital communications
IEEE Transactions on Signal Processing
A maximum likelihood digital receiver using coordinate ascent andthe discrete wavelet transform
IEEE Transactions on Signal Processing
Iterative multiuser joint decoding: unified framework and asymptotic analysis
IEEE Transactions on Information Theory
Cross-ambiguity function domain multipath channel parameter estimation
Digital Signal Processing
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This paper presents an iterative scheme for joint timing acquisition, multi-channel parameter estimation, and multiuser soft-data decoding. As an example, an asynchronous convolutionally coded direct-sequence code-division multiple-access system is considered. The proposed receiver is derived within the space-alternating generalized expectation-maximization framework, implying that convergence in likelihood is guaranteed under appropriate conditions in contrast to many other iterative receiver architectures. The proposed receiver iterates between joint posterior data estimation, interference cancellation, and single-user channel estimation and timing acquisition. A Markov Chain Monte Carlo technique, namely Gibbs sampling, is employed to compute the a posteriori probabilities of data symbols in a computationally efficient way. Computer simulations in flat Rayleigh fading show that the proposed algorithm is able to handle high system loads unlike many other iterative receivers.