Channel coding and decoding in a MIMO TWRC with physical-layer network coding

In this paper, we propose a joint design of MIMO-PNC (multiple-input multiple-output physical layer network coding) and channel decoding in two way relay channels. The paper shows that if we adopt the same Repeat Accumulate (RA) channel code at the two end nodes, there would be a compatible decoder...

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Published in:2012 IEEE 23rd International Symposium on Personal, Indoor and Mobile Radio Communications - (PIMRC) pp. 95 - 99
Main Authors: Shengli Zhang, Liya Lu, Canping Nie, Gongbin Qian, Fanggang Wang
Format: Conference Proceeding
Language:English
Published: IEEE 01.09.2012
Subjects:
belief propagation
channel code
Helium
Land mobile radio
MIMO
physical layer network coding
repeat accumulate code
ISBN:9781467325660, 146732566X
ISSN:2166-9570
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Abstract In this paper, we propose a joint design of MIMO-PNC (multiple-input multiple-output physical layer network coding) and channel decoding in two way relay channels. The paper shows that if we adopt the same Repeat Accumulate (RA) channel code at the two end nodes, there would be a compatible decoder at the relay which can transform the received superimposed packet to the network coding form of the two packets efficiently. Specifically, we redesign the belief propagation decoding algorithm of the RA code for traditional point-to-point channel to suit the need of the MIMO PNC channel. The simulation results show that our new scheme outperforms the previously proposed schemes which combined MIMO NC with channel coding/decoding significantly in terms of BER with little added complexity.
AbstractList In this paper, we propose a joint design of MIMO-PNC (multiple-input multiple-output physical layer network coding) and channel decoding in two way relay channels. The paper shows that if we adopt the same Repeat Accumulate (RA) channel code at the two end nodes, there would be a compatible decoder at the relay which can transform the received superimposed packet to the network coding form of the two packets efficiently. Specifically, we redesign the belief propagation decoding algorithm of the RA code for traditional point-to-point channel to suit the need of the MIMO PNC channel. The simulation results show that our new scheme outperforms the previously proposed schemes which combined MIMO NC with channel coding/decoding significantly in terms of BER with little added complexity.
Author Fanggang Wang
Liya Lu
Gongbin Qian
Canping Nie
Shengli Zhang
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  surname: Liya Lu
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  organization: Dept. of Commun. Eng., Shenzhen Univ., Shenzhen, China
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  surname: Canping Nie
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  surname: Gongbin Qian
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  organization: Dept. of Commun. Eng., Shenzhen Univ., Shenzhen, China
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  surname: Fanggang Wang
  fullname: Fanggang Wang
  email: wfgang@gmail.com
  organization: Inst. of Netowrk Coding, Chinese Univ. of Hong Kong, Hong Kong, China
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Snippet In this paper, we propose a joint design of MIMO-PNC (multiple-input multiple-output physical layer network coding) and channel decoding in two way relay...
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StartPage 95
SubjectTerms belief propagation
channel code
Helium
Land mobile radio
MIMO
physical layer network coding
repeat accumulate code
Title Channel coding and decoding in a MIMO TWRC with physical-layer network coding
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