Results 1 to 10 of about 5,600 (224)

Differential Characteristics Based Iterative Multiuser Detection for Wireless Sensor Networks [PDF]

open access: yesSensors, 2017
High throughput, low latency and reliable communication has always been a hot topic for wireless sensor networks (WSNs) in various applications. Multiuser detection is widely used to suppress the bad effect of multiple access interference in WSNs.
Xiaoguang Chen   +3 more
doaj   +2 more sources

Multiuser detection for CDMA systems [PDF]

open access: yesIEEE Personal Communications, 1995
Spread spectrum-based code division multiple access (CDMA), has taken on a significant role in cellular and personal communications. We concentrate on direct sequence CDMA (DS/CDMA). We show that there is a natural modification of the present systems that is potentially capable of significant capacity increases.
J Holtzman, Z Zvonar
exaly   +2 more sources

Turbo multiuser detection: A primer

open access: yesJournal of Communications and Networks, 2001
Turbo multiuser detection refers to joint channel decoding and multiuser detection using an iterative exchange of soft information between the two processes. This technique, which offers an attractive combination of low complexity and near-optimal performance, has been examined by several authors in recent years with very promising results.
H Vincent Poor
exaly   +2 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

Mean field analysis of reverse annealing for code-division multiple-access multiuser detection

open access: yesPhysical Review Research, 2021
Code-division multiple-access (CDMA) multiuser detection is a kind of signal recovery problem. The main problem of CDMA multiuser detection is to estimate the original signal from the degraded information.
Shunta Arai   +2 more
doaj   +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

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   +3 more sources

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