Real-Domain Decoder for Full-Rate Full-Diversity STBC with Multidimensional Constellations
- Authors
- Lee, Heunchul; Cho, Jungho; Kim, Jong-kyu; Lee, Inkyu
- Issue Date
- 1월-2009
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Diversity methods; maximum likelihood decoding (MLD); multidimensional rotated constellations; space-time block codes (STBC)
- Citation
- IEEE TRANSACTIONS ON COMMUNICATIONS, v.57, no.1, pp.17 - 21
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE TRANSACTIONS ON COMMUNICATIONS
- Volume
- 57
- Number
- 1
- Start Page
- 17
- End Page
- 21
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/120790
- DOI
- 10.1109/TCOMM.2009.0901.070056
- ISSN
- 0090-6778
- Abstract
- In this letter, we present a new maximum likelihood (ML) decoding algorithm for space time block codes (STBCs) that employ multidimensional constellations. We start with a lattice representation for STBCs which transforms complex channel models into real matrix equations, Based on the lattice representation, we propose a new decoding algorithm for quasi-orthogonal STBCs (QO-STBC) which allows simple ML decoding with performance identical to the conventional ML decoder. Multidimensional rotated constellations are constructed for the QO-STBCs to achieve full diversity. As a consequence, for quasi-orthogonal designs with an arbitrary number of transmit antennas N (N >= 4), the proposed decoding scheme achieves full rate and full diversity while reducing the decoding complexity from O(M-c(N/2)) to O(M-c(N/4)) in a M-c-QAM constellation.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > School of Electrical Engineering > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.