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Fast Gaussian Process Regression for Multiuser Detection in DS-CDMA

Dinh-Mao Bui, Sungyoung Lee
2017 IEEE Communications Letters  
Recently, Gaussian process has been excellently proved the effectiveness in solving the multiuser detection issue in Code Division Multiple Access system.  ...  Even with limited training sequences, Gaussian process-based solutions still surpass other approaches.  ...  CONCLUSION In this research, we propose an approach to reduce the computational complexity of the hyper-parameters estimation of GPR, which is mainly used to solve the issue of multiuser detection in DS-CDMA  ... 
doi:10.1109/lcomm.2016.2620430 fatcat:wpxubkhto5dipbetkcby6nc5am

Advanced signal processing for power line communications

Hualyu Dai, H.V. Poor
2003 IEEE Communications Magazine  
It is seen that multicarrier code division multiple access (MC-CDMA), multiuser detection (MUD), and turbo decoding, having demonstrated their limit-approaching capacity in digital subscriber line (DSL  ...  distribution networks for Internet access and in-home/office networking.  ...  For white Gaussian noise, maximum likelihood detection is the same as least-squares (LS) regression.  ... 
doi:10.1109/mcom.2003.1200108 fatcat:uvsnu7g2vrakbp5cj6rmp6z6k4

Analysys of Blind adaptive multiuser detection receivers

Nirmaladevi , Rangisetty, K. Kishan Rao
2014 Transactions on Machine Learning and Artificial Intelligence  
In this paper, blind adaptive multiuser detection with Mean Output Energy (MOE) are designed in receivers for synchronous MC-DS-CDMA systems in Rayleigh fading channels.  ...  In this work, our purpose is to design blind adaptive multiuser detection receivers for synchronous MC-DS-CDMA systems in Rayleigh fading channels.  ...  MC-DS-CDMA receiver based on decorrelation detection Although decorrelation multiuser detection have been extensively used for single-carrier DS-CDMA systems, few approaches are developed for MC-DS-CDMA  ... 
doi:10.14738/tmlai.26.593 fatcat:xrzafinhfjbbhmsemlwc7ctgfy

Fast Converging Minimum Probability of Error Neural Network Receivers for DS-CDMA Communications

J.D. Matyjas, I.N. Psaromiligkos, S.N. Batalama, M.J. Medley
2004 IEEE Transactions on Neural Networks  
We consider a multilayer perceptron neural network (NN) receiver architecture for the recovery of the information bits of a direct-sequence code-division-multiple-access (DS-CDMA) user.  ...  white Gaussian noise (AWGN) multiple-access channels, and iii) it embeds importance sampling (IS) principles directly into the receiver optimization process.  ...  For the case of single-user detection in DS-CDMA systems, the optimum decision boundary for the additive white Gaussian noise (AWGN) multiple-access channel is nonlinear [1] .  ... 
doi:10.1109/tnn.2004.824409 pmid:15384536 fatcat:7rsybyrkl5fmvl3ufexu7yglee

Fast converging minimum probability of error neural network receivers for DS-CDMA communications

John D. Matyjas, Ioannis N. Psaromiligkos, Stella N. Batalama, Michael J. Medley, Raghuveer M. Rao, Soheil A. Dianat, Michael D. Zoltowski
2003 Digital Wireless Communications V  
We consider a multilayer perceptron neural network (NN) receiver architecture for the recovery of the information bits of a direct-sequence code-division-multiple-access (DS-CDMA) user.  ...  white Gaussian noise (AWGN) multiple-access channels, and iii) it embeds importance sampling (IS) principles directly into the receiver optimization process.  ...  For the case of single-user detection in DS-CDMA systems, the optimum decision boundary for the additive white Gaussian noise (AWGN) multiple-access channel is nonlinear [1] .  ... 
doi:10.1117/12.487977 fatcat:inplpa7gtne2pgpo4rm4bvbvcq

Fuzzy-ARTMAP based Multi-User Detection

Jung-Sik Lee
2012 The Journal of Korean Institute of Communications and Information Sciences  
This paper studies the application of a fuzzy-ARTMAP (FAM) neural network to multi-user detector (MUD) for direct sequence (DS)-code division multiple access (CDMA) system.  ...  In simulation studies, binary signals were generated at random in a linear channel with Gaussian noise.  ...  K., Hanzo, L., "Adaptive near minimum error rate training for neural networks with application to multiuser detection in CDMA communication systems," Signal Processing,Vol. 85, pp. 1435Vol. 85, pp.  ... 
doi:10.7840/kics.2012.37a.3.172 fatcat:twy62gsyqvb7hewczlfwxnrplm

DS-CDMA system with joint channel estimation and MAP detection in time-selective fading channels

S. Tsai, T.F. Wong, J.S. Lehnert
2001 IEEE Journal on Selected Areas in Communications  
In this paper, maximum a posteriori (MAP) detection is applied to a direct-sequence code-division multiple-access (DS-CDMA) system jointly with identification and estimation of time-selective fading channels  ...  Unknown parameters such as auto-regressive (AR) process coefficients, noise covariance matrices, and the antenna array vector are estimated based on received sample vectors only.  ...  In the area of multiuser detection, synchronous CDMA systems using a standard KF to track fast channel variations were proposed in [11] - [13] .  ... 
doi:10.1109/49.909614 fatcat:2mf3i7kkf5f2lbgyuwznrwkvqa

LMS Algorithms for Tracking Slow Markov Chains With Applications to Hidden Markov Estimation and Adaptive Multiuser Detection

G.G. Yin, V. Krishnamurthy
2005 IEEE Transactions on Information Theory  
Two application examples, analysis of the performance of an adaptive multiuser detection algorithm in a direct-sequence code-division multiple-access (DS/CDMA) system, and tracking analysis of the state  ...  Index Terms-Adaptive filtering, admission/access control, direct-sequence code-division multiple-access (DS/CDMA) adaptive multiuser detection, hidden Markov model (HMM), jump Markov parameter, mean square  ...  ACKNOWLEDGMENT The authors thank the reviewers and the Associate Editor for detailed comments, suggestions, and corrections, which lead to much improvement of the paper.  ... 
doi:10.1109/tit.2005.850075 fatcat:r2y4wuafvjacvhoh5mizym2s34

Incremental gradient algorithm for multiuser detection in multi-carrier DS-CDMA system under modulation schemes

Sumitra N. Motade, Anju V. Kulkarni
2018 International Journal of Engineering & Technology  
This paper proposes an incremental gradient descent (IGD) multi-user detection (MUD) for MC DS-CDMA system that can achieve near-optimum performance while the number of users is linear in its implementation  ...  Nowadays, Multicarrier Direct sequence code division multiple access (MC DS-CDMA) systems are used in mobile communication.  ...  The Gaussian technique [18] efficiently solves the issues of MUD in CDMA systems. The fast Gaussian process regression reduced the complexity by maintaining the accuracy.  ... 
doi:10.14419/ijet.v7i2.6.11270 fatcat:wxa2eop2ofec5bw27z3pzblgb4

Efficient DS-UWB MUD Algorithm Using Code Mapping and RVM

Pingyan Shi, Xiaohui Liu, Xiaofeng Tao, Jianchao Ji
2016 Mathematical Problems in Engineering  
A hybrid multiuser detection (MUD) using code mapping and a wrong code recognition based on relevance vector machine (RVM) for direct sequence ultra wide band (DS-UWB) system is developed to cope with  ...  Simulation results also show that the proposed method can approximately achieve the BER performance of optimal multiuser detection (OMD) and the computational complexity approximately equals the matched  ...  Acknowledgments The research in this paper is supported by the National Natural Science  ... 
doi:10.1155/2016/1930541 fatcat:zsoynaqr3zatzmfihxh76pq3o4

Blind detection of CDMA signals based on Kalman filter

Zhengyuan Xu, Ting Wang
2001 Conference Record of Thirty-Fifth Asilomar Conference on Signals, Systems and Computers (Cat.No.01CH37256)  
This paper studies detection of CDMA signals based on Kalman filter.  ...  The covariance of process noise in the proposed algorithm is recursively estimated from the estimated states, different from all existing approaches where channel parameters are assumed known or estimated  ...  Introduction Kalman filter has been studied for several decades and applied to solve various problems [2] . Recently, there is increasing interest in applying it to multiuser detection.  ... 
doi:10.1109/acssc.2001.987746 fatcat:lckpgsifzvbotlpkoadju5r5cm

Blind PARAFAC receivers for DS-CDMA systems

N.D. Sidiropoulos, G.B. Giannakis, R. Bro
2000 IEEE Transactions on Signal Processing  
This paper links the direct-sequence code-division multiple access (DS-CDMA) multiuser separation-equalization-detection problem to the parallel factor (PARAFAC) model, which is an analysis tool rooted  ...  Exploiting this link, it derives a deterministic blind PARAFAC DS-CDMA receiver with performance close to nonblind minimum mean-squared error (MMSE).  ...  REPRISE This paper has developed a link between PARAFAC analysis and blind multiuser separation-equalization-detection for DS-CDMA systems.  ... 
doi:10.1109/78.824675 fatcat:umbbplgrsram5i6nl5omlaq6t4

Traffic-aided multiuser detection for random-access CDMA networks

Biao Chen, Lang Tong
2001 IEEE Transactions on Signal Processing  
A two-stage multiuser detection is proposed where the first stage tracks active users and feeds its tracking output to the second stage multiuser detector for symbol detection.  ...  This burstiness results in the predictability of user activity at the individual source level, and the exploitation of such predictability in the receiver design for a random-access CDMA packet switching  ...  Traffic-Aided Multiuser Detection for Random-Access CDMA Networks Biao Chen, Member, IEEE, and Lang Tong, Member, IEEE Abstract-Traffic burstiness has been observed for multimedia packet switching networks  ... 
doi:10.1109/78.928710 fatcat:lfakz3yb3rempphlyoenkt2evy

Recursive Least Square Based Reduced-Rank Blind Channel Estimation Algorithm for CDMA Systems

Md Masud Rana, Roton Kumar Gush
2019 Zenodo  
For this reason, the channel estimation becomes an important topic in the communication community. In the last few decades, many works have done over the reduced-rank channel estimation approaches.  ...  In this paper, we proposed an adaptive recursive least square based reduced-rank channel estimation algorithm for code division multiple access systems.  ...  Batalama, " Low complexity blind detection of DS/CDMA signals: Auxiliary-vector receivers," IEEE Trans. Commun., vol. 45, pp. 1586 -1594 , Dec. 1997 . D. A. Pados and S. N.  ... 
doi:10.5281/zenodo.3123858 fatcat:hpxwax33djhprjqplnahgbfwvi

Acquisition of direct sequence spread spectrum acoustic communication signals

Stojanovic, Freitag
2003 Oceans 2003. Celebrating the Past ... Teaming Toward the Future (IEEE Cat. No.03CH37492)  
Acquisition of the code timing in DS/SS systems is addressed for time-varying frequency-selective underwater acoustic channels.  ...  Simulation results show excellent performance in low-SNR regime, as well as in the presence of multiple-access interference and fast fading.  ...  The path gains are time-varying, complex-valued independent random processes, generated using a second-order auto-regressive model driven by a zero-mean white Gaussian process.  ... 
doi:10.1109/oceans.2003.178569 fatcat:kvof2spt2bgsxet3yy7nlbvfv4
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