Results 81 to 90 of about 2,797,595 (206)

Time- and Frequency-Domain-Spread Generalized Multicarrier DS-CDMA Using Subspace-Based Blind and Group-Blind Space–Time Multiuser Detection

open access: yes, 2008
—Subspace-based blind and group-blind space–time (ST) multiuser detection (MUD) is invoked for a smart-antenna-aided gen-eralized multicarrier direct-sequence code-division multiple-access (MC DS-CDMA) system communicating over a dispersive ST Rayleigh ...
Lie-liang Yang   +5 more
core  

Blind Multiuser Detection by Kurtosis Maximization for Asynchronous Multirate DS/CDMA Systems

open access: yesEURASIP Journal on Advances in Signal Processing, 2006
Chi et al. proposed a fast kurtosis maximization algorithm (FKMA) for blind equalization/deconvolution of multiple-input multiple-output (MIMO) linear time-invariant systems.
Peng Chun-Hsien   +2 more
doaj   +1 more source

A Differential Weighted Accumulation Algorithm Using Variable Sliding Window

open access: yesIEEE Access, 2018
Focusing on inbound uplink signal acquisition of the short message communication service in BeiDou system, a differential weighted accumulation algorithm using variable sliding window (DWAVSW) is proposed for the fast acquisition of short burst signal in
Ping Tang, Xiangming Li, Shuai Wang
doaj   +1 more source

Receiver multiuser diversity aided multi-stage minimum mean-square error detection for heavily loaded DS-CDMA and SDMA systems [PDF]

open access: yes, 2010
By investigating the conditions required for successive interference cancellation multiuser detectors (SIC-MUD) to achieve near-optimum BER performance, we propose and investigate a so-called receiver multiuser diversity aided multi-stage minimum mean ...
Yang, Lie-Liang, Lie-Liang Yang
core   +1 more source

Genetic Algorithm Assisted Minimum Bit Error Rate Multiuser Detection in Multiple Antenna Aided OFDM

open access: yes, 2004
The family of minimum bit error rate (MBER) multiuser detectors (MUD) is capable of outperforming the classic minimum mean-squared-error (MMSE)MUDin term of the achievable bit-error rate (BER) owing to directly minimising the BER cost function.
Alias, M.Y.   +7 more
core   +2 more sources

Blind Chip-Rate Multiuser Equalisation

open access: yes, 2003
This paper addresses blind multiuser detection in a DS-CDMA downlink channel. The synchronous users are separated by re-establishing orthogonality of their spreading sequences in a common chip-rate equaliser.
S. Weiss, M. Hadef, Weiss, S., Hadef, M.
core   +2 more sources

Multiuser Detection Assisted Time- and Frequency-Domain Spread Multicarrier Code-Division Multiple-Access

open access: yes, 2006
In this contribution, we study a reduced-complexity multiuser detection aided multicarrier direct-sequence code-division multiple-access (MC DS-CDMA) scheme, which employs both time (T)-domain and frequency (F)-domain spreading.
Wei, H., Yang, L-L., Hanzo, L.
core   +1 more source

Sparse Representation Based Range-Doppler Processing for Integrated OFDM Radar-Communication Networks

open access: yesInternational Journal of Antennas and Propagation, 2017
In an integrated radar-communication network, multiuser access techniques with minimal performance degradation and without range-Doppler ambiguities are required, especially in a dense user environment.
Bo Kong   +5 more
doaj   +1 more source

Adaptive Minimum-BER Linear Multiuser Detection for DS-CDMA Signals in Multipath Channels

open access: yes, 2001
The problem of constructing adaptive minimum bit error rate (MBER) linear multiuser detectors is considered for direct-sequence code division multiple access (DS-CDMA) signals transmitted through multipath channels.
Mulgrew, B.   +3 more
core   +1 more source

Ant-Colony Based Near-ML Space-Time Multiuser Detection for the STBC Assisted DS-CDMA Uplink

open access: yes, 2010
In this contribution, a novel Ant Colony Optimization (ACO) based Space-Time (ST) Multiuser Detection (MUD) algorithm was proposed in order to improve the Bit Error Ratio (BER) versus Signal-to-Noise Ratio (SNR) performance achieved by the Space-Time ...
Yang, Lie-Liang   +5 more
core   +1 more source

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