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Blind Multiuser Detection by Kurtosis Maximization/Minimization
2004
IEEE Signal Processing Letters
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In this letter, blind multiuser detection is studied in the presence of multipath distortion. ...
It is shown that under some conditions, the optimal constraint vector converges to the channel vector of the desired user irrespective of noise, and the proposed receiver ensures perfect cancelation of ...
In this letter, we propose a novel receiver design criterion that does not suffer from convergence problem, while success- fully suppressing both intersymbol interference (ISI) and multiuser interference ...
doi:10.1109/lsp.2003.819342
fatcat:klmbuy65hbgfhgzbzequhfwzgi
MUI-free receiver for a synchronous DS-CDMA system based on block spreading in the presence of frequency-selective fading
2000
IEEE Transactions on Signal Processing
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deterministic blind multiuser channel estimation algorithm developed by Liu and Xu for a standard synchronous DS-CDMA system in the presence of frequency-selective fading. ...
This is for the case in which the channels are known as well as for the case in which the channels are estimated with the corresponding subspace deterministic blind channel estimation algorithm. ...
However, even exploiting the ideas presented in this paper, designing the desired user's linear multiuser equalizer using the corresponding subspace deterministic blind multiuser channel estimation algorithm ...
doi:10.1109/78.875474
fatcat:pqt3ixd7vbcb7bk4pnwlek5xye
Editorial
2004
EURASIP Journal on Wireless Communications and Networking
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Since multiuser detection relies on the cyclostationarity of the received signal, which is significantly complicated by the time-varying modeling of the long-code system, research on blind multiuser detection ...
In CDMA system, in addition to intersymbol interference (ISI) caused by multipath propagation, simultaneous transmission also introduces multiuser interference (MUI). ...
In CDMA system, in addition to intersymbol interference (ISI) caused by multipath propagation, simultaneous transmission also introduces multiuser interference (MUI). ...
doi:10.1155/s1687147204004001
fatcat:gtvfet3dqrb35gfc7tszzvsjku
Kurtosis based maximization/minimization approach to blind equalization for DS/CDMA systems in unknown multipath
2002
IEEE International Conference on Acoustics Speech and Signal Processing
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In this paper, we study blind equalization for a DS/CDMA system in multipath. ...
The equalizer guarantees cancellation of both intersymbol interference and multiuser interference. ...
In such a way, [12] can effectively suppress ISI and multiuser interference (MUI). ...
doi:10.1109/icassp.2002.1005214
fatcat:4sao572sezh4bfryowc4wuiuty
Kurtosis based maximization/minimization approach to blind equalization for DS/CDMA systems in unknown multipath
2002
IEEE International Conference on Acoustics Speech and Signal Processing
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In this paper, we study blind equalization for a DS/CDMA system in multipath. ...
The equalizer guarantees cancellation of both intersymbol interference and multiuser interference. ...
In such a way, [12] can effectively suppress ISI and multiuser interference (MUI). ...
doi:10.1109/icassp.2002.5745176
dblp:conf/icassp/XuL02
fatcat:cwdvcnrvbnbzfp2pdz44eibhjq
Performance of Single User vs. Multiuser Modulation in Wireless Multicarrier (MC) Communications
[article]
2013
arXiv
pre-print
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The tolerance characteristics of DS-CDMA in frequency-selective channels and MC-CDMA in flat fading channels will be shown analytically and improved capacity and Bit Error Rate performance will be derived ...
The analytical comparison will be in terms of computing probability of bit error for frequency selective and slow flat fading channels for different modulation techniques. ...
Its multirate receiver design performs better than existing frameworks in fading conditions through MUI elimination, blind channel estimation and FIR channel irrespective symbol recovery with finer rate ...
arXiv:1305.7393v1
fatcat:pgnghe3w3ngr5ot7methlfqzym
Enhanced subspaced approach to interference mitigation
2011
2011 11th International Symposium on Communications & Information Technologies (ISCIT)
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channels. ...
By exploiting the improper nature of multiple access interference (MAI) and intersymbol interference (ISI), the enhanced detector shows clear superiority to the conventional subspace-based blind multiuser ...
We aim to design a multiuser detector that detects the signals in a symbol-by-symbol fashion and employ a processing window of length + − 1 to model the received signal in a vector form. ...
doi:10.1109/iscit.2011.6089717
dblp:conf/iscit/XiaoYTS11
fatcat:fnoqeb7tibblbmwf2f6xqdy3b4
Mitigating Error Propagation in Decision-Feedback Equalization for Multiuser CDMA
2004
IEEE Transactions on Communications
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This letter presents a robust decision-feedback equalization design that mitigates the error-propagation problem for multiuser direct-sequence code-division multiple-access systems under multipath fading ...
Explicit constraints for signal energy preservation are imposed on the filter weight vector to monitor and maintain the quality of the hard decisions in the nonlinear feedback loop. ...
It naturally leads to robust blind multiuser DFE. ...
doi:10.1109/tcomm.2004.826357
fatcat:asae4v5vuvhbjjfdo3wzj4niae
Multiuser detection using the Taguchi method for DS-CDMA systems
2005
IEEE Transactions on Wireless Communications
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One of the advantages of the present Taguchi method is that it is blind since no channel estimation is required to detect the transmitted data, which is not the case in many existing methods. ...
Systems with unknown channel information are considered and the well-known result for maximum likelihood multiuser detector is directly used in our work. ...
A blind adaptive multiuser detector based on constant modulus algorithm is presented in [20] , and a blind adaptive detector based on minimum output energy is proposed in [27] and [36] . ...
doi:10.1109/twc.2005.850359
fatcat:rqyasszuebd6tcaibai4e4czzi
Kalman Filter-Based Chip Differential Blind Adaptive Multiuser Detection for Variably Mobile Asynchronous Underwater Multiuser Communications
2018
IEEE Access
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The Kalman filter-based blind adaptive multiuser detection (KF-BAMUD) algorithm has been adopted to combat ISI and MAI in the scenario of static users, and underwater and under-ice multiuser communication ...
The Kalman filter-based blind adaptive multiuser detection (KF-BAMUD) algorithm has been adopted to combat ISI and MAI in the scenario of static users, and underwater and under-ice multiuser communication ...
We have designed a Kalman filter-based blind adaptive multiuser detection (KF-BAMUD) algorithm to deal with the inter-symbol interference (ISI) and multiple access interference (MAI) incurred in asynchronous ...
doi:10.1109/access.2018.2868475
fatcat:l6agtosrajdljjy6vro6ytgsai
SGD Frequency-Domain Space-Frequency Semiblind Multiuser Receiver with an Adaptive Optimal Mixing Parameter
2013
Radioengineering
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multiuser receivers with a fixed mixing parameters and reduces computational complexity of suboptimal FD semiblind multiuser receivers in SFBC downlink MIMO MC-CDMA systems where various numbers of users ...
AS) LMS semiblind based with a fixed mixing parameter and conventional FD SF AS-LMS training-based multiuser receivers in the MSE, SER and signal to interference plus noise ratio in both static and dynamic ...
Blind multiuser detection and channel estimation receivers based on subspace decomposition are proposed in [14] [15] [16] . ...
doaj:7a2f12b48c4a4639899199dd6a744317
fatcat:myo6xswcmzgzvhdmhh4bjt2ikm
Chip-interleaved block-spread code division multiple access
2002
IEEE Transactions on Communications
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A novel multiuser-interference (MUI)-free code division multiple access (CDMA) transceiver for frequency-selective multipath channels is developed in this paper. ...
(Semi-) blind channel estimation algorithms are also discussed. Simulation results demonstrate improved performance of the proposed system relative to competing alternatives. ...
of [16] and the linear multiuser detector of [17] , both utilizing blind subspace-based channel estimation and ZF equalization. ...
doi:10.1109/26.983320
fatcat:nx5sz2poujf5zjqxmyrh7sv6u4
Code-constrained blind detection of CDMA signals in multipath channels
2002
IEEE Signal Processing Letters
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To mitigate channel distortion and multiuser interference, we integrate multiple constraints into the optimization criterion. ...
However, in the presence of noise, the constraints highly affect the performance of the receiver. ...
Conclusions We have proposed a blind multiuser detector to combat multipath distortions and suppress both ISI and MUI. ...
doi:10.1109/lsp.2002.806043
fatcat:dmtgnbobtrdg7kwifqrnaflu3q
Blind Multi-User Equalisation For A Dispersive Ds-Cdma Downlink Under Carrier Frequency Offset Conditions
2004
Zenodo
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Publication in the conference proceedings of EUSIPCO, Viena, Austria, 2004 ...
As a result, the received and code-demultiplexed user signals are subject not only to inter-symbol interference (ISI) due to channel dispersion but also to multiple access interference (MAI) due to the ...
If v[m] in
SIMULATION RESULTS For the simulations below, we apply the proposed blind multiuser equaliser combined with a carrier frequency offset correction to two types of channels characterised by ...
doi:10.5281/zenodo.38677
fatcat:llgku4tbondaxkotouecnl2yca
Zero-forcing blind equalization based on channel subspace estimates for multiuser systems
1999
1999 IEEE International Conference on Acoustics, Speech, and Signal Processing. Proceedings. ICASSP99 (Cat. No.99CH36258)
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In this paper, we present s e v eral new blind algorithms that utilize second order statistics for multichannel equalization. ...
For multiuser system, user signal separation can be achieved based on partial information of the composite channel response. ...
INTRODUCTION In digital communication systems, intersymbolinterference ISI and multiuser interference MUI are limiting factors for the performance of the receiver. ...
doi:10.1109/icassp.1999.761295
dblp:conf/icassp/ShenD99
fatcat:gearcabmhfhafbq4u6nn54sxvi
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