Quasi-orthogonal STBC with iterative decoding in bit interleaved coded modulation

Chang Kyung Sung, Jihoon Kim, Inkyu Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

In this paper, we present a method to improve the performance of the four transmit antenna quasi-orthogonal space-time block code (STBC) in the coded system. For the four transmit antenna case, the quasi-orthogonal STBC consists of two symbol groups which are orthogonal to each other, but intra group symbols are not. In uncoded system with the matched filter detection, constellation rotation can improve the performance. However, in coded systems, its gain is absorbed by the coding gain especially for lower rate code. We propose an iterative decoding method to improve the performance of quasi-orthogonal codes in coded systems. With conventional quasi-orthogonal STBC detection, the joint ML detection can be improved by iterative processing between the demapper and the decoder. Simulation results shows that the performance improvement is about 2dB at 1% frame error rate.

Original languageEnglish
Title of host publicationIEEE Vehicular Technology Conference
Pages1323-1327
Number of pages5
Volume60
Edition2
Publication statusPublished - 2004
Event2004 IEEE 60th Vehicular Technology Conference, VTC2004-Fall: Wireless Technologies for Global Security - Los Angeles, CA, United States
Duration: 2004 Sep 262004 Sep 29

Other

Other2004 IEEE 60th Vehicular Technology Conference, VTC2004-Fall: Wireless Technologies for Global Security
CountryUnited States
CityLos Angeles, CA
Period04/9/2604/9/29

Fingerprint

Iterative decoding
Block codes
Modulation
Antennas
Matched filters
Processing

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Sung, C. K., Kim, J., & Lee, I. (2004). Quasi-orthogonal STBC with iterative decoding in bit interleaved coded modulation. In IEEE Vehicular Technology Conference (2 ed., Vol. 60, pp. 1323-1327)

Quasi-orthogonal STBC with iterative decoding in bit interleaved coded modulation. / Sung, Chang Kyung; Kim, Jihoon; Lee, Inkyu.

IEEE Vehicular Technology Conference. Vol. 60 2. ed. 2004. p. 1323-1327.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Sung, CK, Kim, J & Lee, I 2004, Quasi-orthogonal STBC with iterative decoding in bit interleaved coded modulation. in IEEE Vehicular Technology Conference. 2 edn, vol. 60, pp. 1323-1327, 2004 IEEE 60th Vehicular Technology Conference, VTC2004-Fall: Wireless Technologies for Global Security, Los Angeles, CA, United States, 04/9/26.
Sung CK, Kim J, Lee I. Quasi-orthogonal STBC with iterative decoding in bit interleaved coded modulation. In IEEE Vehicular Technology Conference. 2 ed. Vol. 60. 2004. p. 1323-1327
Sung, Chang Kyung ; Kim, Jihoon ; Lee, Inkyu. / Quasi-orthogonal STBC with iterative decoding in bit interleaved coded modulation. IEEE Vehicular Technology Conference. Vol. 60 2. ed. 2004. pp. 1323-1327
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