Results 11 to 20 of about 1,469 (176)
Two approaches to multiuser detection over fading channels
Доклады Белорусского государственного университета информатики и радиоэлектроники, 2021 In this paper, two different receiver structures to multiuser detection that are appropriate for the code-division multiple-access systems with antenna arrays in fading channels are investigated and compared. We analyze and compare the performance of the
V. P. Tuzlukov
doaj +1 more source
Journal 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
Information, 2015 Multi-user detection is an effective method to reduce multiple access interference in code division multiple access (CDMA) systems. This paper discusses a signal subspace based blind adaptive multiuser detector and a Kalman filtering blind adaptive ...
Liqing Zhou +5 more
doaj +1 more source
IEEE Photonics Journal, 2019 Ubiquitous light-emitting diodes provide natural infrastructures for multiuser visible light communications (VLCs). However, the current available works for multiuser VLC systems mainly focus on broadcast scenarios and beamforming techniques.
Zhen-Yu Wang, Hong-Yi Yu, Da-Ming Wang
doaj +1 more source
On robust multiuser detection [PDF]
Conference 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]
GLOBECOM 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 +3 more sources
Experimental Verification of a Multiuser Detection Technique for Asynchronous UOWC Systems
IEEE Photonics JournalIn this paper, a multiuser detection technique is proposed and experimentally verified in underwater optical wireless communication (UOWC) under dynamic channel conditions, which incorporates subspace-based delay estimation and decorrelating multiuser ...
Weijie Liu +3 more
doaj +1 more source
Low Complexity Receiver Structures for Space-Time Coded Multiple-Access Systems
EURASIP 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
EURASIP Journal on Wireless Communications and Networking, 2007 A hierarchical cross-layer design approach is proposed to increase energy efficiency in ad hoc networks through joint adaptation of nodes' transmitting powers and route selection.
Cristina Comaniciu, H. Vincent Poor
doaj +2 more sources
Improved MAX-Log MPA multiuser detection algorithm in SCMA system
Dianzi Jishu Yingyong, 2018 Sparse code multiple access(SCMA) is a novel non-orthogonal multiple access scheme to face the future 5G communication. In allusion to the problem that sparse code multiple access(SCMA) system based on a logarithm-domain MAX-Log message passing algorithm(
Wu Xiong +3 more
doaj +1 more source