Extrinsic information setting for belief propagation decoding with network coding

Naohiro Tsuji, Tomoaki Ohtsuki

研究成果: Conference contribution

1 引用 (Scopus)

抄録

Network coding has been investigated as a way to improve throughput and power efficiency of wireless networks by mixing of various traffic flows. The scenario under consideration is Y-topology denoise-and-forward relay channel that two sending stations transmit independent data to the receiving station directly and through the relay station. The receiving stations decode the error-correcting coded bits using the extrinsic information. Here, it is important to set the extrinsic information to decode the coded data accurately. In this paper, we present how to set the extrinsic information for belief propagation decoding with network coding to achieve better decoding error rate performance. We calculate the extrinsic information based not only on channels from the relay station to receiving station, but also on all channels from two sending stations to the receiving station when the receiving station decodes error-correcting coded data. When we use turbo code or low-density parity-check (LDPC) code as error-correcting code, we decode the coded data accurately by the use of accurate extrinsic information. We provide computer simulation results and show that the proposed method improves bit error rate performance and decreases the average number of decoding iterations.

元の言語English
ホスト出版物のタイトルIEEE Vehicular Technology Conference
DOI
出版物ステータスPublished - 2010
イベント2010 IEEE 71st Vehicular Technology Conference, VTC 2010-Spring - Taipei, Taiwan, Province of China
継続期間: 2010 5 162010 5 19

Other

Other2010 IEEE 71st Vehicular Technology Conference, VTC 2010-Spring
Taiwan, Province of China
Taipei
期間10/5/1610/5/19

Fingerprint

Belief Propagation
Network coding
Network Coding
Decode
Decoding
Relay
Error Rate
Turbo codes
Turbo Codes
Relay Channel
Low-density Parity-check (LDPC) Codes
Bit error rate
Error-correcting Codes
Wireless networks
Traffic Flow
Throughput
Topology
Wireless Networks
Computer Simulation
Computer simulation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Science Applications
  • Applied Mathematics

これを引用

Extrinsic information setting for belief propagation decoding with network coding. / Tsuji, Naohiro; Ohtsuki, Tomoaki.

IEEE Vehicular Technology Conference. 2010. 5493940.

研究成果: Conference contribution

Tsuji, N & Ohtsuki, T 2010, Extrinsic information setting for belief propagation decoding with network coding. : IEEE Vehicular Technology Conference., 5493940, 2010 IEEE 71st Vehicular Technology Conference, VTC 2010-Spring, Taipei, Taiwan, Province of China, 10/5/16. https://doi.org/10.1109/VETECS.2010.5493940
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