Results 61 to 70 of about 242 (110)
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
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Generalized Multicarrier CDMA: Unification and Linear Equalization
EURASIP Journal on Advances in Signal Processing, 2005 Relying on block-symbol spreading and judicious design of user codes, this paper builds on the generalized multicarrier (GMC) quasisynchronous CDMA system that is capable of multiuser interference (MUI) elimination and intersymbol interference (ISI ...
Wang Zhengdao +2 more
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Linear Multiuser Receivers For Asynchronous Mc-Cdma Systems
, 2005 Publication in the conference proceedings of EUSIPCO, Antalya, Turkey ...
BIANCHI, TIZIANO +2 more
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On Analyzing LDPC Codes over Multiantenna MC‐CDMA System
Mathematical Problems in Engineering, 2014 Multiantenna multicarrier code‐division multiple access (MC‐CDMA) technique has been attracting much attention for designing future broadband wireless systems. In addition, low‐density parity‐check (LDPC) code, a promising near‐optimal error correction code, is also being widely considered in next generation communication systems.
Suresh Kumar, S., Rajaram, M.
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Iterative Channel Estimation Techniques for Uplink MC-CDMA Systems
2007 IEEE International Symposium on Signal Processing and Information Technology, 2007 In this work, maximum likelihood (ML) channel estimation for uplink multicarrier code-division multiple-access (MC- CDMA) systems is considered in the presence of frequency fading channel. The expectation-maximization (EM)- and a space- alternating generalized expectation-maximization (SAGE) algorithm are introduced to avoid matrix inversion for the ML
Dogan, Hakan +2 more
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CDMA Transmission with Complex OFDM/OQAM
EURASIP Journal on Wireless Communications and Networking, 2008 We propose an alternative to the well-known multicarrier code-division multiple access (MC-CDMA) technique for downlink transmission by replacing the conventional cyclic-prefix orthogonal frequency division multiplexing (OFDM) modulation by an advanced ...
Lélé Chrislin +3 more
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Journal of Applied Sciences, 2007 This paper proposes multiple-access schemes based on Overloaded Minimum Total Squared Correlation (TSC) signatures, namely Pilot Aided Multi-Carrier Code-Division Multiple-Access (MC-CDMA) and Pilot Aided Space Time Block Codes (STBC) MC-CDMA. Since overloaded minimum TSC signatures were used as the spreading codes, a number of sub-channels in the MC ...
M.S. Arifianto +4 more
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DFT-SV-OFDM based adaptive multi-rate DFT scrambling vector code division multiple access
Tongxin xuebao, 2017 Multipath interference would degrade the performance of multi-rate systems based on OFDM and CDMA,which spectrum efficiency was also lower relatively.To improve the performance and spectrum efficiency,a novel adaptive multi-rate DFT scrambling vector ...
Gao ZHOU, Ping-zhi FAN, Li HAO
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Performance Evaluation of MC DS CDMA using Wireless Open Access Research Platform
JAREE (Journal on Advanced Research in Electrical Engineering), 2018 The need for reliable wireless communication systems has become an issue of communication technology development in the modern era. Multi Carrier Direct Sequence Code Division Multiple Access (MC-DS-CDMA) communication system offers superiority in ...
Suwadi Suwadi +4 more
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DE BRUIJN SEQUENCE BASED PEAK POWER CONTROL AND INTERFERENCE MITIGATION IN MC-CDMA SYSTEM [PDF]
Journal of Engineering Science and Technology, 2015 In Multicarrier Code Division Multiple Access (MC-CDMA) system, the performance can get degraded due to a high Peak to Average Power Ratio (PAPR) which is equivalent to Peak to Mean Envelope Power Ratio (PMEPR) and Multi Access Interference (MAI).
NOOR MOHAMMED V +5 more
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