Spatially-coupled codes approach symmetric information rate of finite-state Markov fading channels

摘要

Fukushima et al. proved that spatially-coupled codes, without pilot symbols and any optimization for the channels, universally achieve the symmetric information rate (SIR) of generalized erasure channels with memory. We expect that the universality is also valid for fading channels. The receiver performs joint iterative channel estimation and decoding where factor-graphs-based BCJR channel estimator for finite-state Markov channels and the LDPC decoder are considered. We demonstrate that the reliable transmission is possible at a rate close to the SIR.