Near-Optimal Data Detection for Two-Dimensional ISI/AWGN Channels Using Concatenated Modeling and Iterative Algorithms
نویسندگان
چکیده
| The general problem of performing digital data detection for a two-dimensional (2D) systems is considered with the speci c 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 onedimensional systems separated by a block interleaver is developed and used to motivate the application of recently developed algorithms for data detection in concatenated systems. The resulting iterative detection algorithms, which are based on soft-output algorithms, are demonstrated to achieve nearoptimal performance even for very severe 2D ISI channels.
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