Results 81 to 90 of about 4,823 (179)
, 2013 —Successive-relaying-aided (SR) cooperative multi-carrier (MC) space–time shift keying (STSK) is proposed for frequency-selective channels. We invoke SR to mitigate the typical 50% throughput loss of conventional half-duplex relaying schemes and MC code ...
Chen, Sheng +3 more
core +3 more sources
EURASIP Journal on Advances in Signal Processing, 2005 Multicarrier CDMA (MC-CDMA) has become a promising candidate for future wireless multimedia communications for its robustness to frequency-selective fading and its flexibility for handling multiple data rates.
Ibars Christian +2 more
doaj +1 more source
EURASIP Journal on Wireless Communications and Networking, 2008 In wireless communications, multicarrier direct-sequence code-division multiple access (MC DS-CDMA) constitutes one of the highly flexible multiple access schemes. MC DS-CDMA employs a high number of degrees-of-freedom, which are beneficial to design and
Wang Li-Chun, Yang Lie-Liang
doaj +2 more sources
NORM Technique based PAPR Reduction in MC-CDMA Systems
Journal of ICT Research and Applications, 2015 Multicarrier code division multiple access (MC-CDMA) is one of the promising technologies for future-generation wireless networks. It offers high data rates, protection against frequency-selective fading and efficient utilization of the spectrum.
Noor Mohammed Vali Mohamad +5 more
doaj +1 more source
, 2005 —In multicarrier code-division multiple-access (MCCDMA), the total system bandwidth is divided into a number of subbands, where each subband may use direct-sequence (DS) spreading and each subband signal is transmitted using a subcarrier frequency.
Hanzo, L., Yang, L-L.
core
Space-Time Coded MC-CDMA: Blind Channel Estimation, Identifiability, and Receiver Design
EURASIP Journal on Advances in Signal Processing, 2002 Integrating the strengths of multicarrier (MC) modulation and code division multiple access (CDMA), MC-CDMA systems are of great interest for future broadband transmissions. This paper considers the problem of channel identification and signal combining/
Li Hongbin, Sun Wei
doaj +1 more source
Interleaving in Time-frequency Diversity on Multi-code Multicarrier CDMA System [PDF]
Journal of Electrical and Electronics Engineering, 2016 This paper presents a new Time-frequency interleaving in a Multi-code Multicarrier CDMA (MC-MC-CDMA) system, which allows two-dimensional spreading in both time and frequency domains.
ZOUGGARET Abdelhak +2 more
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Electrica, 2007 Generalized multicarrier direct sequence code-division multiple-access (MC DS-CDMA) system is a model which includes a number of specific MC DS-CDMA schemes by varying the normalized subcarrier spacing.
Ibrahim DEVELI, Seher SENER
doaj +2 more sources
Ant-colony-based multiuser detection for multifunctional-antenna-array-assisted MC DS-CDMA systems
, 2008 A novel Ant Colony Optimization (ACO) based Multi-User Detector (MUD) is designed for the synchronous Multi-Functional Antenna Array (MFAA) assisted Multi-Carrier Direct-Sequence Code-Division Multiple-Access (MC DS-CDMA) uplink (UL), which supports both
Hanzo, L., Hu, B., Xu, C., Yang, L-L.
core +1 more source
Throughput Improvement of STS-Based MC DS-CDMA System with Variable Spreading Factor
Iranian Journal of Electrical and Electronic Engineering, 2009 The throughput enhancement of Space-Time Spreading (STS)-based Multicarrier Direct Sequence Code Division Multiple Access (MC DS-CDMA) system is investigated in this paper. Variable Spreading Factor (VSF) is utilized to improve the data throughput of the
V. Vakil, H. Aghaeinia
doaj