Results 21 to 30 of about 2,797,595 (206)
, 2013 —In this contribution, we investigate the signal detection in the multicarrier direct-sequence code-division multiple-access (DS-CDMA) systems employing both time (T)-domain and frequency (F)-domain spreading, which are referred to as the TF/MC DS-CDMA ...
Zhang, Youguang +5 more
core +2 more sources
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
Hybrid SNR‐Adaptive Multiuser Detectors for SDMA‐OFDM Systems
ETRI Journal, 2018 Multiuser detection (MUD) and channel estimation techniques in space‐division multiple‐access aided orthogonal frequency‐division multiplexing systems recently has received intensive interest in receiver design technologies.
Uğur Yeşilyurt, Özgür Ertuğ
doaj +1 more source
Holographic Mapping of Orbital Angular Momentum using a Terahertz Diffractive Optical Neural Network
Advanced Intelligent Discovery, EarlyView.A compact six‐layer diffractive optical neural network enables direct recognition and spatial mapping of terahertz (THz) orbital angular momentum (OAM) beams. Fabricated by 3D printing, the system distinguishes nine OAM modes and their superpositions with high fidelity, good efficiency, and low crosstalk, offering a scalable solution for THz ...
Wei Jia +3 more
wiley +1 more source
, 2001 A novel multiuser code division multiple access (CDMA) receiver based on genetic algorithms is considered, which jointly estimates the transmitted symbols and fading channel coefficients of all the users.
Hanzo, L., Yen, K.
core +1 more source
Biofuels, Bioproducts and Biorefining, EarlyView.Abstract Tree bark remains an underexploited source of high‐value‐added phenolic compounds with potential circular bioeconomy applications. This work characterized bark extracts from two species of distinct Brazilian biomes, Stryphnodendron adstringens (Cerrado) and Myrcia eximia (Amazon), obtained with three solvents (ethanol, methanol and acetone ...
Mário Sérgio Lorenço +7 more
wiley +1 more source
Multiuser Detection With Particle Filtering
, 2002 Publication in the conference proceedings of EUSIPCO, Toulouse, France ...
Jianqiu Zhang 0002 +2 more
openaire +3 more sources
Applicability of new radio technologies for advanced UMTS networks [PDF]
Advances in Radio Science, 2004 An expanded effort is under the way to support the evolution of UMTS (Universal Mobile Telecommunication System). Apart from delivering high data rates, future UMTS releases will also require to provide high network performance in terms of system ...
A. Dekorsy +3 more
doaj
Energy-Efficient Precoding Design for Multiuser MISO VLC Systems Based on Joint Detection
IEEE Access, 2019 In this paper, we study energy-efficient precoding techniques in multiuser multiple-input single-output (MISO) visible light communication (VLC) systems.
Zhen-Yu Wang, Hong-Yi Yu, Da-Ming Wang
doaj +1 more source