Matrix analysis
Matrix computations (3rd ed.)
Wireless and Cellular Communications
Wireless and Cellular Communications
Toeplitz And Circulant Matrices: A Review (Foundations and Trends(R) in Communications and Information Theory)
IEEE Transactions on Signal Processing
Interference Suppression for Multiuser Downlink Transmission in Frequency-Selective Fading Channels
IEEE Transactions on Signal Processing
Low complexity turbo receiver for multi-user STBC block transmission systems
IEEE Transactions on Wireless Communications
IEEE Transactions on Information Theory
Joint transmitter and receiver optimization in additive cyclostationary noise
IEEE Transactions on Information Theory
On the Elementwise Convergence of Continuous Functions of Hermitian Banded Toeplitz Matrices
IEEE Transactions on Information Theory
Frequency domain equalization for single-carrier broadband wireless systems
IEEE Communications Magazine
Transmission techniques for digital terrestrial TV broadcasting
IEEE Communications Magazine
Block channel equalization in the presence of a cochannel interferent signal
IEEE Journal on Selected Areas in Communications
Low-complexity near-optimal presence detection of a linearly modulated signal
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
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In this paper, the design of a low-complexity linear equalizer is considered for single-carrier (SC) block transmission in the presence of inter-symbol interference (ISI) and data-like co-channel interference (CCI). Unlike the linear minimum meansquared error (LMMSE) frequency-domain equalizer (FDE) designed to suppress ISI only, the LMMSE FDE suffers from high computational complexity due to the CCI component in the signal correlation matrix. Motivated by the fact that the double Fourier transform of the autocorrelation function of a wide-sense cyclostationary process consists of impulse fences with equal spacing, a low-complexity FDE is proposed that approximates the frequency-domain correlation matrix of the CCI plus noise by a block matrix with diagonal blocks. It is shown that the proposed FDE is asymptotically optimal in the sense that the average meansquared error (MSE) converges to that of the LMMSE FDE as the block length tends to infinity. It is also shown that the proposed FDE is more numerically stable than the LMMSE FDE when the receive filter is matched to the transmit filter and its output is over-sampled to better capture the cyclostationarity of the CCI. Discussions and numerical results include SC block transmission systems with unique word instead of cyclic prefix, and systems with multiple receive antennas.