[PDF] Top 20 Toma de conciencia y experiencia estética
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PERFORMANCE AND COMPARISON OF LINEAR MULTIUSER DETECTORS IN DS-CDMA USING CHAOTIC SEQUENCE
... The chaotic sequence is well performed compared to the Gold sequence in the linear multi-user ...The linear multiuser detectors perform better than the conventional ... See full document
16
Using chaotic sequence in direct sequence spread spectrum based on code division multiple access (DS CDMA)
... the chaotic system are it’s sensitively dependence on its initial ...of chaotic systems on their initial conditions, a large number of uncorrelated, random-like, deterministic and reproducible signals can ... See full document
17
Adaptive DS/CDMA Non Coherent Receiver using MULTIUSER DETECTION Technique
... optimum detectors with acceptable complexity and marginal performance degradation compared with the optimum ...optimum detectors can be classified into two categories, namely linear multi-user ... See full document
57
Multiuser Detection for Synchronous DS-CDMA in AWGN Channel
... proposed detectors: linear multiuser detectors and non-linear ...In linear multiuser detection, a linear mapping (transformation) is applied to the soft outputs of ... See full document
5
MIMO Assisted Space Code Division Multiple Access: Linear Detectors and Performance over Multipath Fading Channels
... with using the STS transmit diversity scheme. Three low-complexity linear detectors have been ...BER performance of the MIMO SCDMA system associated with these linear detectors ... See full document
12
Performance comparison of multiuser detectors with channel estimation for flat Rayleigh fading CDMA channels
... The linear decorrelating detector, called the decorrelator, is analogous to the zero-forcing equalizer for the Inter-Symbol Interference (ISI) ...The performance of this relatively simple detector does not ... See full document
82
Adaptive Minimum BER Linear Multiuser Detection for DS CDMA Signals in Multipath Channels
... of linear multiuser detectors for DS-CDMA signals, the minimum mean square error (MMSE) detector [1]–[5] is the most popular one as it provides good performance and can readily ... See full document
28
Nonlinear Multiuser Receiver for Optimized Chaos-Based DS-CDMA Systems
... years. Chaotic signals are derived from non-linear dynamic ...properties, chaotic signals have been proposed to generate spreading sequences for wide-band secure communication ...conventional ... See full document
149
Performance Analysis of Multi User Detectors for Synchronous DS CDMA Systems
... PN Sequence: The PN sequence is produced by the pseudo-random noise generator that is simply a binary linear feedback shift register, consisting of XOR gates and a shift ...identical sequence ... See full document
14
Blind Multiuser Detection by Kurtosis Maximization for Asynchronous Multirate DS/CDMA Systems
... (MIMO) linear time-invariant ...blind multiuser detection of single- rate direct-sequence/code-division multiple-access (DS/CDMA) systems and blind source separation (or independent ... See full document
6
Study and analysis the BER performance of linear multiuser detectors in non-Gaussian noise channel
... years multiuser detection techniques (MUD) have attracted significant attention to improve the performance of direct sequence code-division multiple-access (DS-CDMA) ...in CDMA ... See full document
11
Ant Colony Based Multiuser Detection for MC DS CDMA Systems
... direct sequence code division multiple access (MC DS- CDMA) ...(BER) performance as the optimum maximum likelihood (ML) MUD, without carrying out an exhaustive search of the entire MC ... See full document
70
Analytical Bit Error Rate Performance of DS CDMA Ad Hoc Networks using Large Area Synchronous Spreading Sequences
... BER performance of the quasi-synchronous LAS DS-CDMA ...quasi-synchronous DS-CDMA systems using both 256-chip and 128-chip WH codes exhibit a poor performance owing to ... See full document
114
MBER Turbo Multiuser Beamforming Aided QPSK Receiver Design using EXIT Chart Analysis
... SISO multiuser detectors, the exchange of extrinsic information between the multiuser detectors and the channel decoders was visualized, which facilitated their convergence analysis in the ... See full document
117
A MUSIC Based Algorithm for Blind User Identification in Multiuser DS CDMA
... Since the received signal r comprises only K authentic spreading codes, in order to resolve the ambiguity and dis- tinguish between the authentic and false solutions, we have to somehow inspect the relation of each ... See full document
132
A Unified Exact BER Performance Analysis of Asynchronous DS CDMA Systems Using BPSK Modulation over Fading Channels
... BER performance versus the number of users in the context of Hoyt fading channels, when the effects of background noise are ...spreading sequence lengths and for various Hoyt fading ...obtained using ... See full document
151
An Iterative Multiuser Detector for Turbo-Coded DS-CDMA Systems
... synchronous CDMA systems increases from ...in performance of the detector of ...when using the developed system in channel resources management (as it could be required in multimedia transmission) ... See full document
7
Exploring the reconfigurability options of multi carrier CDMA in cognitive radio systems
... system using a channel mask and an enhanced training symbol ...channel performance at one sub band would still allow the recovery of the data symbol using the other subcarri- ... See full document
45
Support Vector Machine Multiuser Receiver for DS CDMA Signals in Multipath Channels
... the multiuser detection context, the algorithm will require to know all the users’ bits from to , and this is impractical for ...By using a cluster variation-weighted measure, this algorithm always ... See full document
15
Performance of Cellular DS CDMA Systems Using Distributed Antennas
... BER versus coordinates x, y performance of the distributed antenna cellular DS-CDMA system supporting single user, when the user signal experiences pass-loss, lognormal shadowing slow fa[r] ... See full document
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