DS-CDMA multipath fading
Performance of Generalized Multicarrier DS CDMA over Nakagami $m$ Fading Channels
... multitone DS-CDMA, then a subcarrier signal will overlap with a high number of subcarrier signals of both the same user and with those of the interfering ...
11
Ber Improvement Of Ds-Cdma For Awgn And Rayleigh Fading Channel With Kasami Code
... each multipath component reaches with a delay depending on its path ...Delayed multipath components results in Inter-Symbol Interference (ISI) and it applies limit on the corresponding data rate that the ...
5
Bit Error Performance for Asynchronous Ds Cdma Systems Over Multipath Rayleigh Fading Channels (RESEARCH NOTE)
... Consider K users transmitting asynchronously over a multipath-fading environment to a single receiver station. Assume that each transmitter uses a binary phase shift keying (BPSK) DS/CDMA ...
6
An Efficient Code Timing Estimator for DS CDMA Systems over Resolvable Multipath Channels
... Another near-far resistant code-timing estimator, re- ferred to as the large-sample ML (LSML) algorithm, was pro- posed in [7]. LSML is also training-based and can be used to perform code-timing estimation for the ...
13
Accurate Bit Error Rate Calculation for Asynchronous Chaos-Based DS-CDMA over Multipath Channel
... conventional DS-CDMA system under multipath channel, an RAKE receiver is used to overcome the severe consequences of the multipath fading ...
12
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 ...
10
Adaptive constrained CM based multicarrier CDMA receivers in multipath fading channels
... of DS-CDMA system, the received signal is passed through a bank of filters, called a cyclically shifted filter bank (CSFB), and each of which is a cyclically shifted version of the matched filter ...
16
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 ...Doppler fading and unknown users, the method can still be applied with an inevitable per- ...
12
A Unified Approach to the Analysis of Multicarrier DS CDMA over Nakagami $M$ Fading Channels
... multicarrier DS-CDMA (MC DS-CDMA) schemes is defined and its performance is considered over multipath Nakagami- m fading ...MC DS-CDMA scheme is a variable, ...
5
A Reed Solomon Coded DS CDMA System Using Noncoherent M ary Orthogonal Modulation over Multipath Fading Channels
... coded DS-CDMA system by using “errors-and-erasures” ...coded DS-CDMA system, when -ary orthogonal signaling is employed in conjunction with an RTT-based erasure insertion scheme over ...
12
Joint Closed-Loop Power Control and Base Station Assignment for DS-CDMA Receiver in Multipath Fading Channel with Adaptive Beamforming Method
... of CDMA systems, the maximum number of supportable users per cell is limited by multipath fading, shadowing, and near-far effects that cause fluctuations of the received power at the base station ...
12
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 ...
5
Multirate Transmission in Frequency Hopping Multicarrier Direct Sequence Code Division Multiple Access Systems
... The BER performance of the constant-weight code based multirate FH/MC DS-CDMA systems using random FH schemes is shown in Fig.3 and Fig.4 in terms of the multipath Nakagami-m fading chan[r] ...
5
Reverse Link Performance of Synchronous Cellular DS CDMA Networks in Dispersive Rician Multipath Fading Channels
... Even though a user capacity degradation is encountered in realistic multiple-cell scenarios compared to the single-cell case, the system still exhibits a performance gain for the synchro[r] ...
5
Serial Acquisition of DS CDMA Signals in Multipath Fading Mobile Channels
... Hence, our goal in this paper is to quantify the performance of serial search acquisition systems under the hypothesis that there are multiple cells in the uncertainty region of the PN sequence. Specifically, we assume ...
12
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 ...
7
Slow Frequency Hopping Multicarrier DS CDMA for Transmission over Nakagami Multipath Fading Channels
... FH/MC DS-CDMA systems using blind joint soft-detection has been investigated in [2] and [3], under assumption that the receiver has no knowledge of the associated FH patterns ...FH/MC DS-CDMA ...
11
MC DS CDMA System Based on DWT and STBC in Multipath Fading ITU Channels Model
... Abstract: In this study, the performance of MultiCarrier Direct Sequence Code Division Multiple Access (MC-DS-CDMA) in fixed MC-DS-CDMA and mobile MC-DS-CDMA applications have ...
18
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 ...
10
Serial Acquisition Performance of Single and Multi carrier DS CDMA over Nakagami $m$ Fading Channels
... We assume that the transmitter aids the initial synchroniza- tion by transmitting the phase-coded carrier signal without data modulation at the commencement of each transmission. In the MC DS-CDMA ...
11