Abstract
In this paper we investigate analytically the convergence properties of the iterative turbo decoding with the Max-Log-MAP algorithm for softoutput generation. With respect to the iterative decoding scheme, several equivalent mathematical formulations are derived to facilitate the stability analysis, based on which we show that turbo decoding with Max-Log-MAP has at least one fixed point but is in general suboptimal and may not even converge. Finally, some conditions are given to guarantee the convergence of the iterative turbo decoding.
| Original language | English |
|---|---|
| Number of pages | 1 |
| Journal | IEEE International Symposium on Information Theory - Proceedings |
| Publication status | Published - 2002 Sep 12 |
| Event | 2002 IEEE International Symposium on Information Theory - Lausanne, Switzerland Duration: 2002 Jun 30 → 2002 Jul 5 |
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All Science Journal Classification (ASJC) codes
- Theoretical Computer Science
- Information Systems
- Modelling and Simulation
- Applied Mathematics
Cite this
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Stability analysis of the turbo decoding algorithm using Max-Log-MAP. / Wu, Wei Sheng; Wang, Chung Hsuan; Chiu, Mao Ching; Chao, Chi Chao.
In: IEEE International Symposium on Information Theory - Proceedings, 12.09.2002.Research output: Contribution to journal › Conference article
TY - JOUR
T1 - Stability analysis of the turbo decoding algorithm using Max-Log-MAP
AU - Wu, Wei Sheng
AU - Wang, Chung Hsuan
AU - Chiu, Mao Ching
AU - Chao, Chi Chao
PY - 2002/9/12
Y1 - 2002/9/12
N2 - In this paper we investigate analytically the convergence properties of the iterative turbo decoding with the Max-Log-MAP algorithm for softoutput generation. With respect to the iterative decoding scheme, several equivalent mathematical formulations are derived to facilitate the stability analysis, based on which we show that turbo decoding with Max-Log-MAP has at least one fixed point but is in general suboptimal and may not even converge. Finally, some conditions are given to guarantee the convergence of the iterative turbo decoding.
AB - In this paper we investigate analytically the convergence properties of the iterative turbo decoding with the Max-Log-MAP algorithm for softoutput generation. With respect to the iterative decoding scheme, several equivalent mathematical formulations are derived to facilitate the stability analysis, based on which we show that turbo decoding with Max-Log-MAP has at least one fixed point but is in general suboptimal and may not even converge. Finally, some conditions are given to guarantee the convergence of the iterative turbo decoding.
UR - http://www.scopus.com/inward/record.url?scp=0036350655&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0036350655&partnerID=8YFLogxK
M3 - Conference article
AN - SCOPUS:0036350655
JO - IEEE International Symposium on Information Theory - Proceedings
JF - IEEE International Symposium on Information Theory - Proceedings
SN - 2157-8095
ER -