EXIT-Chart-Matching-Aided Near-Capacity Coded Modulation Design and a BICM-ID Design Example for Both Gaussian and Rayleigh Channels

Xie, Qian; Yang, Zhixing; Song, Jian; Hanzo, Lajos

doi:10.1109/tvt.2012.2228679

Cited by 24 publications

(24 citation statements)

References 40 publications

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“…5 for 16QAM. The outer channel code we use is the rate-1/2 four-state NRC code with the generator of [7,5] 8 . The doping rate is R dop = 100.…”

Section: Labelling Reselection For Bicm-id With Max-log-map Detectionmentioning

confidence: 99%

“…In this section, we analyse these improved max-log-MAP algorithms using EXIT charts. We also take 16QAM as an example and use the rate-1/2 four-state NRC code with generator of [7,5] 8 as outer channel code. The block length is 64,800 bits and the SNR is E s /N 0 = 6.0 dB over AWGN channels.…”

Section: Exit-chart Analysis Of Error-accumulation Controlmentioning

confidence: 99%

“…The constellation labelling functions are those specified in Fig. 2, whereby the original ones were proposed in [7]. The rate-1/2 four-state NRC code with the generator of [7,5] 8 is used as the outer channel code.…”

Section: Performance Evaluationmentioning

confidence: 99%

“…2, whereby the original ones were proposed in [7]. The rate-1/2 four-state NRC code with the generator of [7,5] 8 is used as the outer channel code. The unity-rate two-state RSC code is employed as the doping code with the doping rate R dop = 100.…”

Section: Performance Evaluationmentioning

confidence: 99%

“…Previously, we proposed a method referred to as adaptive binary switching algorithm (ABSA) for finding the constellation labelling with the aid of extrinsic information transfer (EXIT) chart analysis [6,7]. EXIT chart is a powerful tool for analysing the convergence behaviour of iterative schemes such as BICM-ID [8].…”

Section: Introductionmentioning

confidence: 99%

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Performance optimisation for bit‐interleaved coded modulation with iterative demapping with max‐log‐ maximum a posterior detection

et al. 2015

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Max-log-maximum a posterior (MAP) detection is preferred in practical systems rather than log-MAP because of its lower complexity, but also suffers from a considerable performance loss. In this study, the authors focus on the performance optimisation for (doped) bit-interleaved coded modulation with iterative demapping schemes where maxlog-MAP detection is employed. First, they study the effects of max-log-MAP detection to the extrinsic information transfer curves of the (doped) demapper and decoder, and reselect the constellation labelling. Second, they find that the small difference between max-log-MAP and log-MAP detection in each iteration would be accumulated during the whole iterative procedure referred to as error accumulation, which causes a large performance loss, and consequently they propose some methods to control the error accumulation. Owing to the labelling reselection and erroraccumulation control, the proposed scheme exhibits several tenths to 1 dB gains, compared with the conventional schemes, while maintaining low complexity.

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“…5 for 16QAM. The outer channel code we use is the rate-1/2 four-state NRC code with the generator of [7,5] 8 . The doping rate is R dop = 100.…”

Section: Labelling Reselection For Bicm-id With Max-log-map Detectionmentioning

confidence: 99%