Results 11 to 20 of about 2,797,595 (206)

Multiuser detection for asynchronous ARGOS signals [PDF]

open access: yes2010 7th International Symposium on Communication Systems, Networks & Digital Signal Processing (CSNDSP 2010), 2010
In this paper, we investigate the application of multiuser detection techniques to a Low Polar Orbit (LPO) mobile satellite used in the ARGOS system. These techniques are used to mitigate the multiple access interference in the uplink transmission of the system.
Fares Fares   +4 more
openaire   +3 more sources

Reduced-Dimension Multiuser Detection [PDF]

open access: yesIEEE Transactions on Information Theory, 2010
We present a reduced-dimension multiuser detector (RD-MUD) structure for synchronous systems that significantly decreases the number of required correlation branches at the receiver front-end, while still achieving performance similar to that of the conventional matched-filter (MF) bank.
Yao Xie 0002   +2 more
openaire   +5 more sources

Receiver Multiuser Diversity Aided Multi-Stage MMSE Multiuser Detection: A Low-Complexity Detector Fast-Converging to the Optimum [PDF]

open access: yes, 2010
Design of low-complexity detection schemes that can approach near-optimum bit error rate (BER) performance in multiuser or other multiple-input multiple-output (MIMO) systems has always been highly challenging.
Yang, Lie-Liang, Lie-Liang Yang
core   +2 more sources

Iterative multiuser detection

open access: yesJournal of Communications and Networks, 2001
In this paper, we propose a novel scheme for iterative multiuser detection and turbo decoding. Multiuser detection is based on the soft output maximum a posteriori (MAP) detector, which passes soft metrics to the single-user turbo decoders. Parallel concatenated convolutional codes (PCCC) are employed as single user turbo-codes, where each user is ...
Aleksandar D. Damnjanovic   +1 more
openaire   +2 more sources

Multiuser Detection for Nonlinear MIMO Uplink [PDF]

open access: yesIEEE Transactions on Communications, 2020
For the multiple-input multiple-output (MIMO) uplink employing high-order quadrature amplitude modulation (QAM) signaling and with nonlinear high power amplifiers (HPAs) at mobile users’ transmitters, the existing multiuser detection methods can no longer be applied. We propose a novel nonlinear multiuser detection scheme for the nonlinear MIMO uplink.
Sheng Chen 0001   +4 more
openaire   +4 more sources

Hybrid Iterative Multiuser Detection for Channel Coded Space Division Multiple Access OFDM Systems [PDF]

open access: yes, 2006
Space division multiple access (SDMA) aided orthogonal frequency division multiplexing (OFDM) systems assisted by efficient multiuser detection (MUD) techniques have recently attracted intensive research interests.
Jiang, M., Ng, S. X., Hanzo, L.
core   +2 more sources

On robust multiuser detection [PDF]

open access: yesConference Record of the Thirty-Fourth Asilomar Conference on Signals, Systems and Computers (Cat. No.00CH37154), 2002
We study the design of multiuser detectors from an H/sup /spl infin// point of view. The H/sup /spl infin// approach is most appropriate in the situations where the statistical properties of the disturbances are not known or are too hard to model and analyze.
Vikalo, Haris   +2 more
openaire   +2 more sources

Exploiting Opportunistic Multiuser Detection in Decentralized Multiuser MIMO Systems [PDF]

open access: yesGLOBECOM 2009 - 2009 IEEE Global Telecommunications Conference, 2009
This paper studies the design of a decentralized multiuser multi-antenna (MIMO) system for spectrum sharing over a fixed narrow band, where the coexisting users independently update their transmit covariance matrices for individual transmit-rate maximization via an iterative manner.
Rui Zhang 0006, John M. Cioffi
openaire   +4 more sources

Receiver Multiuser Diversity Aided Multi-Stage MMSE Multiuser Detection for DS-CDMA and SDMA Systems Employing I-Q Modulation [PDF]

open access: yes, 2010
The so-called receiver multiuser diversity aided multistage minimum mean-square error multiuser detector (RMD/MS-MMSE MUD), which was proposed previously by the author, is investigated in the context of the direct-sequence code-division multiple-access ...
Yang, Lie-Liang, Lie-Liang Yang
core   +2 more sources

Low Complexity Receiver Structures for Space-Time Coded Multiple-Access Systems

open access: yesEURASIP Journal on Advances in Signal Processing, 2002
Multiuser detection for space-time coded synchronous multiple-access systems in the presence of independent Rayleigh fading is considered. Under the assumption of quasi-static fading, it is shown that optimal (full diversity achieving) space-time codes ...
Jayaweera Sudharman K, Poor H Vincent
doaj   +1 more source

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