TY - JOUR
T1 - Intersymbol/cochannel interference cancellation for transmit diversity systems in frequency selective fading channels
AU - Li, L.
AU - Yao, Y. D.
AU - Li, H.
PY - 2001
Y1 - 2001
N2 - As a coding technique designed for use with multiple transmit antennas, space-time coding (STC) has been gaining more and more attention recently due to its attractive characteristics to provide diversity at the receiver and coding gain over an uncoded system without sacrificing the bandwidth, and increase the effective transmission rate as well as the potential system capacity. This paper presents powerful and computationally linear intersymbol and cochannel interference suppression schemes, considering both zero-forcing (ZF) and minimum mean-square error (MMSE) criteria to combat intersymbol interference (ISI) and suppress cochannel interference (CCI) and obtain diversity gain in a system with transmit diversity technique using symbol-level space-time block coding (STBC). General linear schemes are derived for the transmit diversity case with two transmit antennas and M receive antennas. The conditions are investigated under which interference can be suppressed perfectly using linear FIR filters in noise-free environments. Binary phase shift keying (BPSK) modulation scheme is assumed to simulate the proposed diversity and interference suppression methods. Numerical results show significant performance improvements compared to the cases without interference suppression.
AB - As a coding technique designed for use with multiple transmit antennas, space-time coding (STC) has been gaining more and more attention recently due to its attractive characteristics to provide diversity at the receiver and coding gain over an uncoded system without sacrificing the bandwidth, and increase the effective transmission rate as well as the potential system capacity. This paper presents powerful and computationally linear intersymbol and cochannel interference suppression schemes, considering both zero-forcing (ZF) and minimum mean-square error (MMSE) criteria to combat intersymbol interference (ISI) and suppress cochannel interference (CCI) and obtain diversity gain in a system with transmit diversity technique using symbol-level space-time block coding (STBC). General linear schemes are derived for the transmit diversity case with two transmit antennas and M receive antennas. The conditions are investigated under which interference can be suppressed perfectly using linear FIR filters in noise-free environments. Binary phase shift keying (BPSK) modulation scheme is assumed to simulate the proposed diversity and interference suppression methods. Numerical results show significant performance improvements compared to the cases without interference suppression.
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M3 - Conference article
AN - SCOPUS:0035181797
SN - 0740-0551
VL - 2
SP - 678
EP - 682
JO - IEEE Vehicular Technology Conference
JF - IEEE Vehicular Technology Conference
IS - 54ND
T2 - IEEE 54th Vehicular Technology Conference (VTC FALL 2001)
Y2 - 7 October 2001 through 11 October 2001
ER -