Bounds on the Information Rate for Sparse Channels with Long Memory and I.u.d. Inputs

In this paper the authors propose new bounds on the achievable information rate for discrete-time Gaussian channels with Inter-Symbol Interference (ISI) and independent and uniformly distributed (i.u.d.) channel input symbols drawn from finite-order modulation alphabets. Specifically, they are interested in developing new bounds on the achievable rates for sparse channels with long memory. They obtain a lower bound which can be achieved by practical receivers, based on MMSE channel shortening and suboptimal symbol detection for a reduced-state channel.

Provided by: Institute of Electrical & Electronic Engineers Topic: Networking Date Added: Dec 2011 Format: PDF

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