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

• Published in: 1998 IEEE International Conference on Communications Vol. 2; pp. 952 - 956 vol.2
• Main Authors: Xiaopeng Chen, Chugg, K.M.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 1998
• Subjects: Additive white noise; AWGN channels; Concatenated codes; Data storage systems; Detection algorithms; Error probability; Gaussian noise; Intersymbol interference; Iterative algorithms; Optical noise
• DOI: 10.1109/ICC.1998.685152
• ISBN: 0780347889; 9780780347885

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.