TY - GEN
T1 - A low complexity interference suppression scheme for high mobility STBC-OFDM systems
AU - Sheu, Chorng Ren
AU - Liu, Jia Wei
AU - Huang, Chuan Yuan
AU - Huang, Chia-Chi
PY - 2012/8/20
Y1 - 2012/8/20
N2 - A novel low complexity scheme based on received data symbol pair reordering and optimal selection, is proposed for space time block coded (STBC) OFDM systems to suppress co-channel interference (CCI) and inter-carrier interference (ICI) caused by time-varying channels. The proposed scheme reorders the conventional received data symbol pairs to produce extra received data symbol pairs. Then, the STBC decoding is performed on all the received data symbol pairs, and the STBC decoding output signals are used to obtain multiple combined signals. Finally, the optimal combined signal with minimum interference is selected to suppress CCI and ICI, and the system performance will be improved as long as the channels are mutually uncorrelated. Our computer simulation results verify that the proposed low complexity scheme achieves good performance for high mobility 2x2 STBC-OFDM systems in the ITU Vehicular A (VA) channels.
AB - A novel low complexity scheme based on received data symbol pair reordering and optimal selection, is proposed for space time block coded (STBC) OFDM systems to suppress co-channel interference (CCI) and inter-carrier interference (ICI) caused by time-varying channels. The proposed scheme reorders the conventional received data symbol pairs to produce extra received data symbol pairs. Then, the STBC decoding is performed on all the received data symbol pairs, and the STBC decoding output signals are used to obtain multiple combined signals. Finally, the optimal combined signal with minimum interference is selected to suppress CCI and ICI, and the system performance will be improved as long as the channels are mutually uncorrelated. Our computer simulation results verify that the proposed low complexity scheme achieves good performance for high mobility 2x2 STBC-OFDM systems in the ITU Vehicular A (VA) channels.
KW - co-channel interference
KW - inter-carrier interference
KW - OFDM
KW - optimal selection
KW - received data symbol pair reordering
KW - space time block code
UR - http://www.scopus.com/inward/record.url?scp=84865008870&partnerID=8YFLogxK
U2 - 10.1109/VETECS.2012.6240121
DO - 10.1109/VETECS.2012.6240121
M3 - Conference contribution
AN - SCOPUS:84865008870
SN - 9781467309905
T3 - IEEE Vehicular Technology Conference
BT - IEEE 75th Vehicular Technology Conference, VTC Spring 2012 - Proceedings
Y2 - 6 May 2012 through 9 June 2012
ER -