Abstract
In this paper, a new suboptimal modification for the log-MAP turbo decoding algorithm is proposed. This method (PL-log-MAP) based on the piecewise linear approximation of the the compensation term (correction function) in the Jacobian logarithm used by the MAP (BCJR) decoder. Using the proposed approximation, the complex functions ln(.) and exp(.) in the log-MAP algorithm can be estimated with high accuracy and lower computational complexity. The efficacy of the proposed approximation is investigated and demonstrated by applying it to digital communication system. The performance of the PL-log-MAP algorithm is shown to have the closest performance to the original log-MAP solution.
| Original language | English |
|---|---|
| Title of host publication | 2015 International Siberian Conference on Control and Communications, SIBCON 2015 - Proceedings |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| ISBN (Print) | 9781479971022 |
| DOIs | |
| Publication status | Published - 1 Jul 2015 |
| Event | 2015 International Siberian Conference on Control and Communications, SIBCON 2015 - Omsk, Russian Federation Duration: 21 May 2015 → 23 May 2015 |
Other
| Other | 2015 International Siberian Conference on Control and Communications, SIBCON 2015 |
|---|---|
| Country | Russian Federation |
| City | Omsk |
| Period | 21.5.15 → 23.5.15 |
Fingerprint
Keywords
- approximation
- BER
- compensation term
- correction function
- iterative decoding
- Jacobian logarithm
- log-MAP
- MAP (BCJR) algorithm
- max-log-MAP
- turbo code
ASJC Scopus subject areas
- Computer Networks and Communications
- Control and Systems Engineering
Cite this
A novel suboptimal piecewise-linear-log-MAP algorithm for turbo decoding. / Ivanov, Yu Yu; Romanyuk, A. N.; Kulyk, A. Ia; Stukach, O. V.
2015 International Siberian Conference on Control and Communications, SIBCON 2015 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2015. 7147195.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - A novel suboptimal piecewise-linear-log-MAP algorithm for turbo decoding
AU - Ivanov, Yu Yu
AU - Romanyuk, A. N.
AU - Kulyk, A. Ia
AU - Stukach, O. V.
PY - 2015/7/1
Y1 - 2015/7/1
N2 - In this paper, a new suboptimal modification for the log-MAP turbo decoding algorithm is proposed. This method (PL-log-MAP) based on the piecewise linear approximation of the the compensation term (correction function) in the Jacobian logarithm used by the MAP (BCJR) decoder. Using the proposed approximation, the complex functions ln(.) and exp(.) in the log-MAP algorithm can be estimated with high accuracy and lower computational complexity. The efficacy of the proposed approximation is investigated and demonstrated by applying it to digital communication system. The performance of the PL-log-MAP algorithm is shown to have the closest performance to the original log-MAP solution.
AB - In this paper, a new suboptimal modification for the log-MAP turbo decoding algorithm is proposed. This method (PL-log-MAP) based on the piecewise linear approximation of the the compensation term (correction function) in the Jacobian logarithm used by the MAP (BCJR) decoder. Using the proposed approximation, the complex functions ln(.) and exp(.) in the log-MAP algorithm can be estimated with high accuracy and lower computational complexity. The efficacy of the proposed approximation is investigated and demonstrated by applying it to digital communication system. The performance of the PL-log-MAP algorithm is shown to have the closest performance to the original log-MAP solution.
KW - approximation
KW - BER
KW - compensation term
KW - correction function
KW - iterative decoding
KW - Jacobian logarithm
KW - log-MAP
KW - MAP (BCJR) algorithm
KW - max-log-MAP
KW - turbo code
UR - http://www.scopus.com/inward/record.url?scp=84941086462&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84941086462&partnerID=8YFLogxK
U2 - 10.1109/SIBCON.2015.7147195
DO - 10.1109/SIBCON.2015.7147195
M3 - Conference contribution
AN - SCOPUS:84941086462
SN - 9781479971022
BT - 2015 International Siberian Conference on Control and Communications, SIBCON 2015 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
ER -