EXIT-Chart-Based Design Method for Noncoherent LDPC-Coded Modulation in Correlated Rayleigh Fading Channels-Reference-Cited by-同舟云学术

EXIT-Chart-Based Design Method for Noncoherent LDPC-Coded Modulation in Correlated Rayleigh Fading Channels

Published:2015-01 Issue: Volume:719-720 Page:837-844
ISSN:1662-7482
Container-title:Applied Mechanics and Materials
language:
Short-container-title:AMM

Author:

Chen Yen Ming¹,Chen Kuan Chun¹,Ueng Yeong Luh¹,Wei Ruey Yi²,Hsu Jen Yuan³

Affiliation:

1. National Tsing Hua University

2. National Central University

3. Inf. and Commun. Research Laboratories, Industrial Technology Research Institute, Hsinchu, Taiwan

Abstract

In the paper, we investigate LDPC-coded differential amplitude/phase modulation (APM) schemes for correlated Rayleigh fading channels. Through the observation for the mutual information of the extrinsic log-likelihood ratio (LLR) values of the variable nodes in the LDPC decoder, it is found that the code design methods investigated in the previous literature loses their accuracy. Consequently, a modified code design method for the outer LDPC code is proposed in this paper. It is shown that the searched LDPC code effectively improves the error performance, when compared to the convolutional-coded scheme investigated in the previous literature.

Publisher

Trans Tech Publications, Ltd.

Link

https://www.scientific.net/AMM.719-720.837.pdf

Reference17 articles.

1. W. Weber, III, Differential encoding for multiple amplitude and phase shift keying systems, IEEE Trans. Commun., vol. 26, pp.385-391, Mar. (1978).

2. D. Warrier and U. Madhow, Spectrally efficient noncoherent com- munication, IEEE Trans. Inf. Theory, vol. 48, no. 3, pp.651-668, Mar. (2002).

3. W. T. Webb, L. Hanzo, and R. Steele, Bandwidth efficient QAM schemes for Rayleigh fading channels, in Proc. IEE Communications, Speech and Vision, vol. 138, pp.169-175, June (1991).

4. R. Fischer, L. Lampe, and S. Calabro, Differential encoding strategies for transmission over fading channels, Int. J. Elect. Commun., pp.59-67, Jan. (2000).

5. N. Jacobsen and U. Madhow, Coded noncoherent communication with amplitude/phase modulation: from Shannon theory to practical architectures, IEEE Trans. Commun., vol. 56, no. 12, pp.2040-2048, Dec. (2008).