Results 11 to 20 of about 4,697,846 (248)

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 ...
Sheng Chen   +4 more
semanticscholar   +4 more sources

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
Boucheret, Marie-Laure   +4 more
core   +4 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   +3 more sources

Sparsity Learning-Based Multiuser Detection in Grant-Free Massive-Device Multiple Access [PDF]

open access: yesIEEE Transactions on Wireless Communications, 2018
In this paper, we study the multiuser detection (MUD) problem for a grant-free massive-device multiple access (MaDMA) system, where a large number of single-antenna user devices transmit sporadic data to a multi-antenna base station (BS).
Tian Ding, Xiaojun Yuan, S. Liew
semanticscholar   +1 more source

Optimal Multiuser MIMO Linear Precoding with LMMSE Receiver

open access: yesEURASIP Journal on Wireless Communications and Networking, 2009
The adoption of multiple antennas both at the transmitter and the receiver will explore additional spatial resources to provide substantial gain in system throughput with the spatial division multiple access (SDMA) technique.
Shu Fang, Gang Wu, Shao-Qian Li
doaj   +2 more sources

Prefiltering-based reduced rank multiuser detection in uplink generalized spatial modulation massive MIMO system

open access: yesEURASIP Journal on Advances in Signal Processing, 2023
Exploiting generalized spatial modulation in massive MIMO system, we develop an efficient uplink multiuser detection scheme. Different from the maximum likelihood detection algorithm, the spatial and temporal data in the proposed detection scheme are ...
Wei-Chiang Wu
doaj   +1 more source

Robust Multiuser Detection Based on Novel Quantum Bee Colony Algorithm [PDF]

open access: yesJisuanji gongcheng, 2016
In order to solve the optimal solutions for robust multiuser detection in the impulse noise environment,a Novel Quantum Bee Colony(NQBC) algorithm is proposed based on artificial bee colony algorithm and quantum computing.In NQBC,two new quantum foraging
GAO Hongyuan,LIANG Yansong,LIU Dandan
doaj   +1 more source

Multiple access interference suppression for CDMA systems via ℓ∞-minimization

open access: yesFundamental Research, 2022
A key problem in code-division multiple access (CDMA) system is to mitigate the multiple access interference (MAI) from other users while detecting the desired user.
Xue Jiang, Xingzhao Liu, T. Kirubarajan
doaj   +1 more source

Deep Learning Based Fast Multiuser Detection for Massive Machine-Type Communication [PDF]

open access: yesIEEE Vehicular Technology Conference, 2018
Massive machine-type communication (MTC) with sporadically transmitted small packets and low data rate requires new designs on the PHY and MAC layer with light transmission overhead.
Yanna Bai, B. Ai, Wei Chen
semanticscholar   +1 more source

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   +1 more source

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