TY - JOUR
T1 - Space-time/frequency coding for MIMO-OFDM in next generation broadband wireless systems
AU - Zhang, Wei
AU - Xia, Xiang Gen
AU - Ben Letaief, Khaled
PY - 2007/6
Y1 - 2007/6
N2 - With the advent of next generation (4G) broadband wireless communications, the combination of multiple-input multiple-output (MIMO) wireless technology with orthogonal frequency division multiplexing (OFDM) has been recognized as one of the most promising techniques to support high data rate and high performance. In particular, coding over the space, time, and frequency domains provided by MIMO-OFDM will enable a much more reliable and robust transmission over the harsh wireless environment. In this article we provide an overview of space-time (ST) coding, space-frequency (SF) coding, and space-time-frequency (STF) coding for MIMO-OFDM systems. Performance results show that STF coding can achieve the maximum diversity gain in an end-to-end MIMO-OFDM system over broadband wireless channels. Furthermore, for orthogonal frequency division multiple access (OFDMA), we propose a multiuser SF coding scheme that can achieve the maximum diversity for each user while minimizing the interference introduced from all the other users.
AB - With the advent of next generation (4G) broadband wireless communications, the combination of multiple-input multiple-output (MIMO) wireless technology with orthogonal frequency division multiplexing (OFDM) has been recognized as one of the most promising techniques to support high data rate and high performance. In particular, coding over the space, time, and frequency domains provided by MIMO-OFDM will enable a much more reliable and robust transmission over the harsh wireless environment. In this article we provide an overview of space-time (ST) coding, space-frequency (SF) coding, and space-time-frequency (STF) coding for MIMO-OFDM systems. Performance results show that STF coding can achieve the maximum diversity gain in an end-to-end MIMO-OFDM system over broadband wireless channels. Furthermore, for orthogonal frequency division multiple access (OFDMA), we propose a multiuser SF coding scheme that can achieve the maximum diversity for each user while minimizing the interference introduced from all the other users.
UR - http://www.scopus.com/inward/record.url?scp=34547618416&partnerID=8YFLogxK
U2 - 10.1109/MWC.2007.386610
DO - 10.1109/MWC.2007.386610
M3 - Article
AN - SCOPUS:34547618416
SN - 1536-1284
VL - 14
SP - 32
EP - 43
JO - IEEE Wireless Communications
JF - IEEE Wireless Communications
IS - 3
ER -