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Iterative decoding of low-density Parity-check codes over compound channels

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2 Author(s)
Sutskover, I. ; Fac. of Electr. Eng., Technion - Israel Inst. of Technol., Haifa, Israel ; Shamai, S.

We present a setting for decoding of low-density parity-check (LDPC) codes jointly with channel estimation, which is suitable for transmission over memoryless compound channels. We show that the performance of the combined scheme can be rigorously evaluated by means of density evolution, and focus on density evolution as a tool for designing a channel estimator that matches not only to the channel, but also to the LDPC ensemble, as well. The utility of the concept is exemplified for a compound binary symmetric channel and an unknown phase additive white Gaussian channel.

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Communications, IEEE Transactions on  (Volume:54 ,  Issue: 2 )