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Near-optimal data detection for two-dimensional ISI/AWGN channels using concatenated modeling and iterative algorithms

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2 Author(s)
Xiaopeng Chen ; Dept. of Electr. Eng. Syst., Southern California Edison Co., Los Angeles, CA, USA ; Chugg, K.M.

The general problem of performing digital data detection for a two-dimensional (2D) systems is considered with the specific application of page-access optical memory systems in mind. A simple 2D intersymbol interference (ISI) channel with additive white Gaussian noise (AWGN) is assumed. An equivalent signal model consisting of two one-dimensional systems separated by a block interleaver is developed and used to motivate the application of previously developed algorithms for data detection in concatenated systems. The resulting iterative detection algorithms, which are based on soft-output algorithms, are demonstrated to achieve near-optimal performance even for very severe 2D ISI channels

Published in:

Communications, 1998. ICC 98. Conference Record. 1998 IEEE International Conference on  (Volume:2 )

Date of Conference:

7-11 Jun 1998