Results 181 to 190 of about 83,036 (231)

Sum-Rate Maximization for Fluid Antenna Enabled Multiuser Communications

IEEE Communications Letters
A novel multiuser communication system with fluid antennas (FAs) is proposed, where the antenna position optimization is exploited to enhance the downlink sum-rate.
Zhenqiao Cheng, Nanxi Li, Jianchi Zhu, Xiaoming She, Chongjun Ouyang, Peng Chen   +5 more
semanticscholar   +1 more source

Multiuser Physical Layer Authentication in Internet of Things With Data Augmentation

IEEE Internet of Things Journal, 2020
Unlike most of the upper layer authentication mechanisms, the physical (PHY) layer authentication takes advantages of channel impulse response from wireless propagation to identify transmitted packages with low-resource consumption, and machine learning ...
Runfa Liao, H. Wen, Songlin Chen, Feiyi Xie, Fei Pan, Jie Tang, Huan-huan Song   +6 more
semanticscholar   +1 more source

Performance Analysis of Integrated Satellite-Terrestrial Multiantenna Relay Networks With Multiuser Scheduling

IEEE Transactions on Aerospace and Electronic Systems, 2020
In this article, we investigate the performance of a multiuser integrated satellite-terrestrial relay network (ISTRN) with the threshold-based decode-and-forward protocol, where the satellite-relay link undergoes shadowed-Rician (SR) fading, while the ...
Qingquan Huang, Min Lin, Wei-Ping Zhu, S. Chatzinotas, Mohamed-Slim Alouini   +4 more
semanticscholar   +1 more source

Linear Precoding and Stream Combining for Rate Splitting in Multiuser MIMO Systems

IEEE Communications Letters, 2020
This letter develops practical linear precoding and stream combining techniques for rate-splitting (RS) in multiuser multiple-input multiple-output (MIMO) systems.
A. Flores, R. D. de Lamare, B. Clerckx
semanticscholar   +1 more source

Asymptotic multiuser efficiencies for decision-directed multiuser detectors

IEEE Transactions on Information Theory, 1998
Summary: The asymptotic multiuser efficiencies (AME's) are derived for various classes of decision-directed multiuser detectors, including multistage detectors, and decision-feedback detectors. Novel classes of soft-decision multistage detectors are proposed and analyzed in this paper.
Zhang, Xuming, Brady, David
openaire   +1 more source

Multiuser Mobile Multimedia

Ninth IEEE International Symposium on Multimedia (ISM 2007), 2007
Mobility especially the flexibility given to us by the mobile phone is the future of computing as we know it. No longer are we restricted to sitting at a desk in front of a powerful desktop machine. Mobile technology of today allows users to work, learn and play no matter where they may be.
Daniel C. Doolan, Sabin Tabirca, Laurence T. Yang   +2 more
openaire   +1 more source

Multiuser projection receivers

IEEE Journal on Selected Areas in Communications, 1996
A new multiuser receiver for synchronous code-division multiple-access (CDMA) systems with error control coding is proposed. The receiver achieves interference cancellation by projecting the undesired users onto the space spanned by the desired users' signal vectors. The detector calculates the least squares (LS) estimate of the interfering users data,
C. Schlegel, S. Roy, P.D. Alexander, null Zeng-Jun Xiang   +3 more
openaire   +1 more source

Design Linear Multiuser Transmitters from Linear Multiuser Receivers

2007 IEEE International Conference on Communications, 2007
Novel concepts are introduced for finding the relationship between multiuser detection (MUD) and multiuser transmission (MUT), so that the study in MUT can benefit from the well-built theory in MUD. Our study shows that, for any given linear MUD scheme, there exists a counterpart linear MUT scheme, which can be readily designed from the original linear
openaire   +1 more source

Optimum Multiuser Asymptotic Efficiency

IEEE Transactions on Communications, 1986
The degradation in bit error rate due to the presence of multiple-access interference in a white Gaussian channel can be measured by the multiuser asymptotic efficiency, defined as the ratio between the SNR required to achieve the same uncoded bit error rate in the absence of interfering users and the actual SNR.
openaire   +2 more sources

Asymptotic multiuser efficiency for decision-feedback multiuser detection

Proceedings of ICC/SUPERCOMM '96 - International Conference on Communications, 2002
In this work, arbitrarily tight upper and lower bounds to the asymptotic multiuser efficiency (AME) are derived for K asynchronous users and decision-feedback multiuser detection. Because the multiple-access interference is noncausal, the precursor interference may be canceled out by making tentative decisions via conventional or decorrelated decisions,
openaire   +1 more source