DS-CDMA multipath fading channel
Comparison of Bit Error Rate for Multipath Fading Channel in DS CDMA
... of fading is demonstrated by approach available in ...of fading. MATLAB provides a simple and easy way to demonstrate fading take place in wireless ...different fading models and MATLAB based ...
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Joint Closed-Loop Power Control and Base Station Assignment for DS-CDMA Receiver in Multipath Fading Channel with Adaptive Beamforming Method
... In this paper, a RAKE receiver in DS-CDMA system is analyzed in three stages according to Fig. 1 [11]. In the first stage, this receiver uses conjugate gradient (CG) adaptive beamforming to find optimum ...
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Ber Improvement Of Ds-Cdma For Awgn And Rayleigh Fading Channel With Kasami Code
... A Fading Channel is said to be a communication channel which has to face various fading phenomenon’s, during transmission of the signal ...and multipath is generated by the same ...
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MC DS CDMA System Based on DWT and STBC in Multipath Fading ITU Channels Model
... the multipath channel impairments and still provide high-data rates in a limited bandwidth is the use of an Orthogonal Frequency-Division Multiplexing (OFDM) modulation method and multiple antennas at the ...
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A Robust Parametric Technique for Multipath Channel Estimation in the Uplink of a DS CDMA System
... Doppler fading, or because one or more interfering users become active before the desired user parameters are ...varying channel, we assumed a maximum mobile velocity of 50 km/h, which at the operating band ...
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Performance Analysis of A Ds Cdma System by using Rayleigh and Nakagami M Fading Channel
... of DS-CDMA system is highly influenced by this path gain component and noise ...sequence CDMA (MC-DS-CDMA) and orthogonal frequency division multiplexing ...of DS CDMA ...
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Bit Error Performance for Asynchronous Ds Cdma Systems Over Multipath Rayleigh Fading Channels (RESEARCH NOTE)
... Abstract In recent years, there has been considerable interest in the use of CDMA in mobile communications. Bit error rate is one of the most important parameters in the evaluation of CDMA systems. In this ...
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A Reed Solomon Coded DS CDMA System Using Noncoherent M ary Orthogonal Modulation over Multipath Fading Channels
... generate channel-quality related ...coded DS-CDMA system by using “errors-and-erasures” ...coded DS-CDMA system, when -ary orthogonal signaling is employed in conjunction with an ...
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Accurate Bit Error Rate Calculation for Asynchronous Chaos-Based DS-CDMA over Multipath Channel
... chaosbased DS-CDMA system is presented in this ...slow fading multipath channel is ...the channel coefficients with the associated delays and chaos synchronization is ...
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Analysis of a Combined Antenna Arrays and Reverse Link Synchronous DS CDMA System over Multipath Rician Fading Channels
... Rayleigh fading and have neglected the performance benefit of having a specular component in Rician fading channel, which is often characterized in microcellular envi- ronments [14, ...asynchronous ...
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Performance of Reverse Link Synchronous DS CDMA System on a Frequency Selective Multipath Fading Channel with Imperfect Power Control
... chronous DS-CDMA system in Rayleigh multipath fading ...Rayleigh fading with perfect power control, RLSTT shows capacity improvements from 50% to 22% for BER = 10 − 6 ...
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Serial Acquisition of DS CDMA Signals in Multipath Fading Mobile Channels
... miss probability and the false-alarm probability has been derived. The MAT performance of the serial search system using conventional cell-by-cell detection and that of using joint two-cell detection has been estimated ...
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Performance of Generalized Multicarrier DS CDMA over Nakagami $m$ Fading Channels
... Let the first user be the user-of-interest and consider the corre- lator-based RAKE receiver in conjunction with maximum ratio combining (MRC), as shown in Fig. 4, where the superscript and subscript of the reference ...
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Performance of compressive sensing algorithms over time varying frequency selective channel
... varying channel. Time varying frequency selective MIMO channel estimation demands huge number of training signals since the system has huge number of channel ...the multipath fading ...
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A novel Chaotic Collaborative CDMA scheme under Rayleigh fading
... The mathematical model of a 2XM1-CCCDMA scheme is described under Rayleigh flat fading channels and compared to high capacity grouped-CDMA schemes. The proposed scheme demonstrates acceptable BER ...
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Modelling and Simulation of Multipath Fading Channels for Comparative Analysis of Different M-Array Modulation Schemes
... and fading affect the modulated signals and the degradation of the symbol error rate due to these multipath paths and different fading ...of multipath fading channels are performed and ...
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Study of Methods to Mitigate Fading in Mobile Communication
... a fading channel is very poor compared to that of an AWGN channel, even for higher values of ...between multipath signals at the receiver results in severe ...Ricean channel slightly ...
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Support Vector Machine Multiuser Receiver for DS CDMA Signals in Multipath Channels
... have been considered as nonlinear MUDs. In the work [15], a multilayer perceptron (MLP) was applied to a CDMA system without intersymbol interference (ISI). The experience shows that the MLP MUD has better ...
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Accurate BER of MC DS CDMA over Rayleigh Fading Channels
... We consider K asynchronous MC-DS-CDMA users in the system having all the same number of subcarriers U and spreading factor L. The average power received from each user is also assumed to be the same. ...
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Transmitter antenna diversity and adaptive signaling using long range prediction for fast fading DS/CDMA mobile radio channels
... flat fading channels that can reliably predict future fading coefficients far beyond the coherence ...in CDMA can also be predicted far ahead, and that the proposed prediction methods can be combined ...
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