Share Email Print
cover

Proceedings Paper

Soft-output demapper and Viterbi decoder for software-defined radio
Author(s): Marcin Darmetko
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Viterbi algorithm is commonly used in communication systems to decode convolutional codes. Soft decision demapping can be used to further improve Viterbi decoder performance. This paper presents implementation of soft-decision demapping and Viterbi decoder for software-defined radio (SDR). Fast simplified algorithms for soft demapping of four modulations common in satellite communications systems (BPSK, QPSK, 8-PSKand 16-APSK) were implemented. To increase software processing speed SIMD (single instruction multiple data) instructions were used.

Paper Details

Date Published: 2 December 2014
PDF: 7 pages
Proc. SPIE 9290, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2014, 92903E (2 December 2014); doi: 10.1117/12.2076064
Show Author Affiliations
Marcin Darmetko, Warsaw Univ. of Technology (Poland)


Published in SPIE Proceedings Vol. 9290:
Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2014
Ryszard S. Romaniuk, Editor(s)

© SPIE. Terms of Use
Back to Top