Influence of Extrinsic Information Scaling Coefficient on Double-Iterative Decoding Algorithm for Space-Time Turbo Codes with Large Number of Antennas
- TRIFINA, L.
- TARNICERIU, D.
- ROTOPANESCU, A.-M.
Publication date
February 2011
DOI Publisher
Universitatea Stefan cel Mare din Suceava ISSN
1582-7445 Journal
Advances in Electrical and Computer Engineering Citation count (estimate)
2Abstract
This paper analyzes the extrinsic information scaling coefficient influence on double-iterative decoding algorithm for space-time turbo codes with large number of antennas. The max-log-APP algorithm is used, scaling both the extrinsic information in the turbo decoder and the one used at the input of the interference-canceling block. Scaling coefficients of 0.7 or 0.75 lead to a 0.5 dB coding gain compared to the no-scaling case, for one or more iterations to cancel the spatial interferences
Add to ORKG