Results 131 to 140 of about 247 (176)

MMSE Turbo Equalizer for Channels with Cochannel Interference

2006 IEEE International Conference on Acoustics Speed and Signal Processing Proceedings, 2006
The MMSE turbo equalizer has excellent performance with moderate complexity. Current realizations of an MMSE turbo equalizer usually assume the equalizer output is Gaussian, which, however, may not be true for channels with co-channel interference (CCI).
Yu Gong, Zhiguo Ding 0001, Colin F. N. Cowan   +2 more
openaire   +1 more source

Turbo Diversity Based on SC/MMSE Equalization

IEEE Transactions on Vehicular Technology, 2005
In this paper, an iterative (turbo) technique, soft-cancellation followed by minimum mean squared error filtering (SC/MMSE), is applied to the diversity combining of broadband single-carrier signals using multiple antennas. The major aim of this approach is to reduce the computational complexity of the original SC/MMSE equalization algorithm.
Mariella Särestöniemi, Tadashi Matsumoto 0001, Kimmo Kansanen, Jari H. Iinatti   +3 more
openaire   +1 more source

Chip-level MMSE equalization at the edge of the cell

2000 IEEE Wireless Communications and Networking Conference. Conference Record (Cat. No.00TH8540), 2002
We examine the performance of two linear equalizers for a CDMA downlink over a frequency-selective multipath channel: the traditional RAKE receiver, and a chip-level MMSE (minimum mean square error) equalizer. The mobile-station assumed to be midway between two base-stations.
Thomas P. Krauss, Michael D. Zoltowski
openaire   +1 more source

An Extending Window MMSE Turbo Equalization Algorithm

IEEE Signal Processing Letters, 2004
We present a modified turbo minimum mean-squared error (MMSE) equalization algorithm using an extending window approach. We show that the new method can achieve nearly the same performance and considerable cost reduction compared with a recently proposed sliding window MMSE equalization technique.
Lihai Liu, Li Ping 0001
openaire   +1 more source

On the Performance of the Mismatched MMSE and the LS Linear Equalizers

IEEE Transactions on Signal Processing, 2007
We consider two widely referenced trained finite-length linear equalizers, namely, the mismatched minimum mean square error (MMSE) equalizer and the least-squares (LS) equalizer. Using matrix perturbation theory, we express both of them as perturbations of the ideal MMSE equalizer and we derive insightful analytical expressions for their excess mean ...
Athanasios P. Liavas, Despoina Tsipouridou   +1 more
openaire   +1 more source

Adaptive Cholesky based MMSE equalizer in GSM

APCCAS 2008 - 2008 IEEE Asia Pacific Conference on Circuits and Systems, 2008
The most wireless communication systems uses the equalization in order to remove the inter-symbol interference (ISI) due to the multipath fading channel impairment. When the minimum mean square error (MMSE) equalizer is applied, the linear system solution requires very high computational complexity so that the equalization would be the most critical ...
Soojin Kim, Jinyoung Lee, Younglok Kim
openaire   +1 more source

Suboptimal Linear MMSE Equalizers With Minimum Redundancy

IEEE Signal Processing Letters, 2010
Recent works have proposed practical zero-forcing (ZF) and linear minimum mean squared-error (LMMSE) solutions for fixed and memoryless block-based transceivers with minimum redundancy, using only half the amount of redundancy employed in standard systems. Their equalization processes require only O(M log2 M) operations. However, it may be difficult to
Wallace Alves Martins, Paulo S. R. Diniz
openaire   +1 more source

Blind MMSE equalization: a new direct method

2000 IEEE International Conference on Acoustics, Speech, and Signal Processing. Proceedings (Cat. No.00CH37100), 2002
We propose a blind MMSE equalization algorithm to compute fractionally spaced blind equalizers with arbitrary delay directly from second order statistics of the observations. The algorithm is based on multi-channel linear prediction. Performance analysis demonstrates that our algorithm has higher signal-to-interference-plus-noise-ratio (SINR) than its ...
Mindi Sheng, H. Howard Fan
openaire   +1 more source

An adaptive algorithm for blind MMSE equalization of SIMO channels

Journal of Ambient Intelligence and Humanized Computing, 2013
In this work, an adaptive method for estimating blind MMSE equalizer with arbitrary delay of SIMO channel is proposed. By using an RLS-similar algorithm to recursively update correlation matrix and its pseudo inverse, the proposed algorithm ensures convergence and is not sensitive to initialization.
Caiyun Chen, Junshan Yu
openaire   +1 more source

MMSE WL Equalizer in Presence of Receiver IQ Imbalance

IEEE Transactions on Signal Processing, 2008
In this correspondence, with reference to the transmission over a linear time-dispersive channel, we address the problem of the in-phase and quadrature-phase (IQ) imbalance compensation when a single-carrier modulation scheme is used. Low-cost fabrication technologies and high data-rate transmissions render the conventional receivers very sensitive to ...
MATTERA, DAVIDE, PAURA, LUIGI, STERLE, FABIO   +2 more
openaire   +3 more sources