IEICE TRANSACTIONS on Fundamentals
Low-Power Hybrid Turbo Decoding Based on Reverse Calculation
Summary :
As turbo decoding is a highly memory-intensive algorithm consuming large power, a major issue to be solved in practical implementation is to reduce power consumption. This paper presents an efficient reverse calculation method to lower the power consumption by reducing the number of memory accesses required in turbo decoding. The reverse calculation method is proposed for the Max-log-MAP algorithm, and it is combined with a scaling technique to achieve a new decoding algorithm, called hybrid log-MAP, that results in a similar BER performance to the log-MAP algorithm. For the W-CDMA standard, experimental results show that 80% of memory accesses are reduced through the proposed reverse calculation method. A hybrid log-MAP turbo decoder based on the proposed reverse calculation reduces power consumption and memory size by 34.4% and 39.2%, respectively.
- Publication
- IEICE TRANSACTIONS on Fundamentals Vol.E89-A No.3 pp.782-789
- Publication Date
- 2006/03/01
- Publicized
- Online ISSN
- 1745-1337
- DOI
- 10.1093/ietfec/e89-a.3.782
- Type of Manuscript
- PAPER
- Category
- VLSI Design Technology and CAD
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Hye-Mi CHOI, Ji-Hoon KIM, In-Cheol PARK, "Low-Power Hybrid Turbo Decoding Based on Reverse Calculation" in IEICE TRANSACTIONS on Fundamentals,
vol. E89-A, no. 3, pp. 782-789, March 2006, doi: 10.1093/ietfec/e89-a.3.782.
Abstract: As turbo decoding is a highly memory-intensive algorithm consuming large power, a major issue to be solved in practical implementation is to reduce power consumption. This paper presents an efficient reverse calculation method to lower the power consumption by reducing the number of memory accesses required in turbo decoding. The reverse calculation method is proposed for the Max-log-MAP algorithm, and it is combined with a scaling technique to achieve a new decoding algorithm, called hybrid log-MAP, that results in a similar BER performance to the log-MAP algorithm. For the W-CDMA standard, experimental results show that 80% of memory accesses are reduced through the proposed reverse calculation method. A hybrid log-MAP turbo decoder based on the proposed reverse calculation reduces power consumption and memory size by 34.4% and 39.2%, respectively.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1093/ietfec/e89-a.3.782/_p
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@ARTICLE{e89-a_3_782,
author={Hye-Mi CHOI, Ji-Hoon KIM, In-Cheol PARK, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Low-Power Hybrid Turbo Decoding Based on Reverse Calculation},
year={2006},
volume={E89-A},
number={3},
pages={782-789},
abstract={As turbo decoding is a highly memory-intensive algorithm consuming large power, a major issue to be solved in practical implementation is to reduce power consumption. This paper presents an efficient reverse calculation method to lower the power consumption by reducing the number of memory accesses required in turbo decoding. The reverse calculation method is proposed for the Max-log-MAP algorithm, and it is combined with a scaling technique to achieve a new decoding algorithm, called hybrid log-MAP, that results in a similar BER performance to the log-MAP algorithm. For the W-CDMA standard, experimental results show that 80% of memory accesses are reduced through the proposed reverse calculation method. A hybrid log-MAP turbo decoder based on the proposed reverse calculation reduces power consumption and memory size by 34.4% and 39.2%, respectively.},
keywords={},
doi={10.1093/ietfec/e89-a.3.782},
ISSN={1745-1337},
month={March},}
Copy
TY - JOUR
TI - Low-Power Hybrid Turbo Decoding Based on Reverse Calculation
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 782
EP - 789
AU - Hye-Mi CHOI
AU - Ji-Hoon KIM
AU - In-Cheol PARK
PY - 2006
DO - 10.1093/ietfec/e89-a.3.782
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E89-A
IS - 3
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - March 2006
AB - As turbo decoding is a highly memory-intensive algorithm consuming large power, a major issue to be solved in practical implementation is to reduce power consumption. This paper presents an efficient reverse calculation method to lower the power consumption by reducing the number of memory accesses required in turbo decoding. The reverse calculation method is proposed for the Max-log-MAP algorithm, and it is combined with a scaling technique to achieve a new decoding algorithm, called hybrid log-MAP, that results in a similar BER performance to the log-MAP algorithm. For the W-CDMA standard, experimental results show that 80% of memory accesses are reduced through the proposed reverse calculation method. A hybrid log-MAP turbo decoder based on the proposed reverse calculation reduces power consumption and memory size by 34.4% and 39.2%, respectively.
ER -
English
