Results 11 to 20 of about 7,178 (195)
Channel Estimation for MIMO MC-CDMA Systems [PDF]
International Journal of Distributed and Parallel systems, 2011 The concepts of MIMO MC-CDMA are not new but the new technologies to improve their functioning are an emerging area of research. In general, most mobile communication systems transmit bits of information in the radio space to the receiver. The radio channels in mobile radio systems are usually multipath fading channels, which cause inter-symbol ...
Sureshkumar, K. +2 more
openaire +4 more sources
Generalized Multicarrier CDMA: Unification and Linear Equalization [PDF]
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
doaj +4 more sources
Performance evaluation of carrier interferometry implementations of MC-CDMA over a wideband channel suffering phase noise [PDF]
, 2005 In this paper the performance of Carrier Interferometry (CI) and Pseudo-Orthogonal Carrier Interferometry (PO-CI) [1] implementations of Multi-Carrier Code Division Multiple Access (MC-CDMA) are investigated.
Armour, SMD +3 more
core +2 more sources
Blind Joint Soft-Detection Assisted Slow Frequency-Hopping Multicarrier DS-CDMA [PDF]
, 2000 A novel multiple-access scheme based on slow frequency-hopping multicarrier direct-sequence, code-division multiple access (SFH/MC DS-CDMA) is proposed and investigated, which can be rendered compatible with the existing second-generation narrow-band ...
Hanzo, L., Yang, L-L.
core +1 more source
Statistical Modeling of Bit-Error-Rates in Asynchronous Multicarrier CDMA and Direct-Sequence CDMA Systems [PDF]
, 2004 This paper presents a method for modeling the bit-error-rate (BER) probability density functions (pdf) of asynchronous Multicarrier Code Division Multiple Access (MC-CDMA) and Direct-Sequence Code Division Multiple Access (DS-CDMA) systems.
Carey, Daniel +2 more
core +2 more sources
Timing estimator for MC-CDMA system
Electronics Letters, 2002 A new method, using training sequences to correct the block timing offset of the MC-CDMA system in a time-varying multipath channel with frequency offset, is proposed. This new method is compared with the Schmidl and Cox method (see IEEE Trans. Commun., vol.45, no.12, p.1613-21, 1997) in terms of estimator mean and variance, it being found that the new
Luan Yingzi, Li Jiandong, Yang Jiawei
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Turbo multiuser detection for MC-CDMA signals with strongly nonlinear transmitters [PDF]
, 2007 In this paper we consider the uplink transmission in MC-CDMA (multicarrier -coded division multiple access) systems. Since MC-CDMA signals are OFDM-like multicarrier signals, they have high envelope fluctuations and a high PMEPR (Peak-to-Mean Envelope ...
Dinis, Rui, Silva, Paulo
core +1 more source
Compensation of Fading Channels Using Partial Combining Equalizer in MC-CDMA Systems
Journal of Telecommunications and Information Technology, 2017 In this paper the performance of a partial combining equalizer for Multi-Carrier Code Division Multiple Access (MC-CDMA) systems is analytically and numerically evaluated. In the part of channel identification, authors propose a blind algorithm based on
Mohammed Zidane +2 more
doaj +1 more source
Simulation of MC-DS-CDMA-System Based on: Wavelet and Slantlet Transforms over Wireless Channel
مجلة علوم ذي قار, 2019 In this paper two proposed schemes for improving the performance form the Bit Error Rate (BER) view point were proposed for Multicarrier-Direct-Sequence- Code Division Multiple Access (MC-DS-CDMA) system in wireless channel. The conventional MC-DS-CDMA-
Ahmed Abdel Hadi Fadhel
doaj +4 more sources
Advances in Electrical and Electronic Engineering, 2019 Performance of Multicarrier Multicode Code-Division Multiple Access (MC/MCD-CDMA) systems can be improved significantly by using Wavelet Packets (WPs) as subcarriers instead of a~sinusoidal function.
Maryam Mahmoud Akho-Zahieh +1 more
doaj +1 more source