Protograph LDPC Based Distributed Joint Source Channel Coding

HONG Shaohua; WANG Lin

doi:10.11999/JEIT170113

Volume 39 Issue 11

Nov. 2017

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Article Navigation > Journal of Electronics & Information Technology > 2017 > 39(11): 2594-2599

HONG Shaohua, WANG Lin. Protograph LDPC Based Distributed Joint Source Channel Coding[J]. Journal of Electronics & Information Technology, 2017, 39(11): 2594-2599. doi: 10.11999/JEIT170113

Citation:

HONG Shaohua, WANG Lin. Protograph LDPC Based Distributed Joint Source Channel Coding[J]. Journal of Electronics & Information Technology, 2017, 39(11): 2594-2599. doi: 10.11999/JEIT170113

HONG Shaohua, WANG Lin. Protograph LDPC Based Distributed Joint Source Channel Coding[J]. Journal of Electronics & Information Technology, 2017, 39(11): 2594-2599. doi: 10.11999/JEIT170113

Citation:

HONG Shaohua, WANG Lin. Protograph LDPC Based Distributed Joint Source Channel Coding[J]. Journal of Electronics & Information Technology, 2017, 39(11): 2594-2599. doi: 10.11999/JEIT170113

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Protograph LDPC Based Distributed Joint Source Channel Coding

doi: 10.11999/JEIT170113

HONG Shaohua¹,
WANG Lin¹

Funds:

The Natural Science Foundation of Fujian Province (2014J01248), The National Natural Science of Foundation of China (61271241, 61671395)

Received Date: 2017-02-10
Rev Recd Date: 2017-05-31
Publish Date: 2017-11-19

Abstract

Abstract

This paper proposes a Distributed Joint Source-Channel Coding (DJSCC) scheme using Protograph Low Density Parity Check (P-LDPC) code. In the proposed scheme, the distributed source encoder sends some information bits together with the parity bits to simultaneously achieve both distributed compression and channel error correction. Iterative joint decoding is introduced to further exploit the source correlation. Moreover, the proposed scheme is investigated when the correlation between sources is not known at the decoder. Simulation results indicate that the proposed DJSCC scheme can obtain relatively large additional coding gains at a relatively small number of global iterations, and the performance for unknown correlated sources is almost the same as that for known correlated sources since correlation can be estimated jointly with the iterative decoding process.
- Distributed Joint Source-Channel Coding (DJSCC),
- Correlated sources,
- Iterative joint decoding,
- Protograph LDPC code (P-LDPC)

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References(22)

References

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