TY - JOUR
T1 - On array-processing-based quasi-orthogonal spacetime block-coded ofdm systems
AU - Zhang, Haixia
AU - Yuan, Dongfeng
AU - Chen, Hsiao Hwa
N1 - Funding Information:
Manuscript received May 20, 2008; revised January 17, 2009, May 12, 2009, and July 15, 2009. First published August 21, 2009; current version published January 20, 2010. This work was supported in part by the National Science Foundation of China under Grant 60672036 and in part by the National Science Council of Taiwan under Grant NSC98-2219-E-006-011. The review of this paper was coordinated by Prof. N. Arumugam.
PY - 2010/1
Y1 - 2010/1
N2 - In this paper, we propose a quasi-orthogonal spacetime block coding (QO-STBC) orthogonal frequency-division multiplex (OFDM) scheme for its application in frequency-selective channels. A novel decoding approach for QO-STBC OFDM is introduced, and it works based on an array-processing technique. The received QO-STBC OFDM symbol array is decomposed by null spaces of the split-up channel matrices, followed by a parallel decoding unit, as an effort to reduce the computational complexity and latency induced by the decoding process. The performance of the proposed system is evaluated over frequency-selective channels by both analysis and computer simulations to show the effectiveness of the scheme.
AB - In this paper, we propose a quasi-orthogonal spacetime block coding (QO-STBC) orthogonal frequency-division multiplex (OFDM) scheme for its application in frequency-selective channels. A novel decoding approach for QO-STBC OFDM is introduced, and it works based on an array-processing technique. The received QO-STBC OFDM symbol array is decomposed by null spaces of the split-up channel matrices, followed by a parallel decoding unit, as an effort to reduce the computational complexity and latency induced by the decoding process. The performance of the proposed system is evaluated over frequency-selective channels by both analysis and computer simulations to show the effectiveness of the scheme.
UR - http://www.scopus.com/inward/record.url?scp=76849109880&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=76849109880&partnerID=8YFLogxK
U2 - 10.1109/TVT.2009.2030684
DO - 10.1109/TVT.2009.2030684
M3 - Article
AN - SCOPUS:76849109880
SN - 0018-9545
VL - 59
SP - 508
EP - 513
JO - IEEE Transactions on Vehicular Technology
JF - IEEE Transactions on Vehicular Technology
IS - 1
M1 - 5210213
ER -