Results 11 to 20 of about 7,314 (217)
Adaptivity in MC-CDMA Systems [PDF]
, 2006 This paper investigates the performance of MC-CDMA with link adap- tation in the uplink of a wireless communication system. Two types of link adaptation approaches can be distinguished: 1) Exploitation of channel state information (CSI) at the transmitter and 2) exploitation of CSI at both the transmitter and the receiver.
Cosovic, Ivan, Kaiser, Stefan
openaire +2 more sources
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
Channel Estimation for MIMO MC-CDMA Systems [PDF]
, 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.
Rajalakshmi, R. +2 more
core +2 more sources
Journal of Telecommunications and Information Technology, 2023 This paper describes two blind algorithms for multicarrier code division multiple access (MC-CDMA) system equalization. In order to identify, blindly, the impulse response of two practical selective frequency fading channels called broadband radio ...
Said Safi +3 more
doaj +1 more source
IB-DFE receivers with space diversity for CP-assisted DS-CDMA and MC-CDMA systems [PDF]
, 2007 Multi-Carrier Code Division Multiple Access (MC-CDMA), currently regarded as a promising multiple access scheme for broadband communications, is known to combine the advantages of an Orthogonal Frequency Division Multiplexing (OFDM)-based, Cyclic Prefix (
Dinis, Rui +2 more
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
STBC MC-CDMA systems: Comparison of MMSE single user and multiple user detection schemes over Rayleigh and MIMO METRA channels [PDF]
, 2004 International audienceThe performance of MMSE single-user detection (SD) and multi-user detection (MD) STBC multi-carrier code division multiple access (MC-CDMA) systems are analysed and compared in the case of two transmit antennas and one or two ...
Auffray, Jean-Michel +2 more
core +3 more sources
EURASIP Journal on Advances in Signal Processing, 2003 The goal of this paper is to compare the performance of the linear minimum mean square error (MMSE) detector for a class of code division multiple access (CDMA) systems in time and frequency selective channels. Specifically, we consider direct sequence (
Tamer A. Kadous, Akbar M. Sayeed
doaj +1 more source