multipath DS-CDMA channels
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 ...
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Analysis of a Combined Antenna Arrays and Reverse Link Synchronous DS CDMA System over Multipath Rician Fading Channels
... asynchronous multipath Rician channels and analyze the performance of an improved AA system which applies a reverse-link synchronous transmission technique (RLSTT) in order to effectively make a better ...
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Performance of Residue Number System Based DS CDMA over Multipath Channels Using Orthogonal Sequences
... By using RNS error-detection codes to find residue errors and to provide erasure information for RS decoding, the error control performance of the non-binary RS code with errors-and-eras[r] ...
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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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Adaptive interference suppression for DS-CDMA systems based on interpolated FIR filters with adaptive interpolators in multipath channels
... Interference suppression with IFIR filters and time-varying interpolators with batch methods, which require matrix inver- sions, were reported in [24]. In this paper, we investigate the suppression of multiple-access ...
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MC DS CDMA System Based on DWT and STBC in Multipath Fading ITU Channels Model
... Wireless communication is considered as one of the big engineering success stories over the last two decades. It is one of the rapidly changing fields that demand for faster data rates with longer transmission ranges to ...
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Comparison of Bit Error Rate for Multipath Fading Channel in DS CDMA
... From the simulation results, Bit Error Ratio of a digital communication system is an important figure of merit used to quantify the integrity of data transmitted through the system. By implementing the various ...
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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 ...
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A Robust Parametric Technique for Multipath Channel Estimation in the Uplink of a DS CDMA System
... ing to the four test environment channel models with dif- ferent delay spreads, which are described in Table 1. Chan- nel (a) used in the previous simulations, as well as channel (d), have a comparatively large delay ...
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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 ...
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Performance of Reverse Link Synchronous DS CDMA System on a Frequency Selective Multipath Fading Channel with Imperfect Power Control
... synchronous DS-CDMA system over frequency selective Rayleigh fading channels in the presence of imperfect power control ...the multipath intensity profile (MIP) shape and the number of ...
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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, allowing us to ...
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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] ...
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Transmitter antenna diversity and adaptive signaling using long range prediction for fast fading DS/CDMA mobile radio channels
... the channels with phase ambiguity, in the proposed 3 rd generation WCDMA systems, coherent channel estimates are available at the receiver since the pilot channel is ...different multipath components and ...
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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 ...
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Support Vector Machine Multiuser Receiver for DS CDMA Signals in Multipath Channels
... fortunately, multipath distortions are often encountered in DS-CDMA systems and will reduce this inherent immunity to ...for DS-CDMA systems [2]–[4]. In a DS-CDMA system, ...
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Adaptive Minimum BER Linear Multiuser Detection for DS CDMA Signals in Multipath Channels
... Abstract—The problem of constructing adaptive minimum bit error rate (MBER) linear multiuser detectors is considered for di- rect-sequence code division multiple access (DS-CDMA) signals transmitted through ...
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An Efficient Code Timing Estimator for DS CDMA Systems over Resolvable Multipath Channels
... In this paper, we propose a new training-based code- timing estimation method, referred to as the modified LSML (MLSML) algorithm. The MLSML algorithm can be used to avoid the multidimensional search problem of ...
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Slow Frequency Hopping Multicarrier DS CDMA for Transmission over Nakagami Multipath Fading Channels
... SFH/MC DS-CDMA system has a similar complexity to that of the corresponding conventional MC DS-CDMA system using all subcarriers for ...
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Accurate Bit Error Rate Calculation for Asynchronous Chaos-Based DS-CDMA over Multipath Channel
... An accurate approach to compute the bit error rate expression for multiuser chaosbased DS-CDMA system is presented in this paper. For more realistic communication system a slow fading multipath ...
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