DS-CDMA wireless system
Performance Improvement of Wireless communication System of DS CDMA with Rake Receiver
... the CDMA Rake receiver is used. In a wireless mobile communication system, a signal can travel from transmitter (TX) to receiver (RX) over multiple paths; this phenomenon is referred to as multipath ...
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Performance of a Two Level Call Admission Control Scheme for DS CDMA Wireless Networks
... The main contribution of this paper is the proposal of a two-level call admission control scheme for DS-CDMA wireless networks and the evaluation of its performance. The proposed scheme is discussed ...
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Performance Evaluation of a DS CDMA System in a Rayleigh Fading Environment
... of DS-CDMA system in a Rayleigh fading channel has been investigated in this re- ...on DS-CDMA mobile communication systems were done considering the mobile wireless channel ...
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Multicarrier DS CDMA: A Multiple Access Scheme for Ubiquitous Broadband Wireless Communications
... forthcoming wireless Internet, which is likely to convey more downloading traf- fic than uplink (mobile-to-base) ...SC DS-CDMA or broadband MC-CDMA to achieve the best pos- sible BER ...
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A Novel Technique for Multiple Access Interference Reduction in DS-CDMA Wireless Communications
... in CDMA communication system a number of users use same frequency and bandwidth separated at receiver only due to presence of different spreading codes ...in CDMA, a number of transmitters are ...
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Throughput Improvement of STS-Based MC DS-CDMA System with Variable Spreading Factor
... of wireless systems in supporting several ...MC- CDMA is ...of CDMA system using variable spreading factors ...for CDMA uplink is formulated as an optimization problem in terms of the ...
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Performance and Analysis of DS-CDMA Rake Receiver and Analyzing the BER Performance in Presence of Nonlinear Distortion in DS-CDMA System
... Wireless cellular telephony has been growing at a faster rate than wired-line telephone ...in wireless coverage is that it does not need the setting up of expensive infrastructure like copper or fiber ...
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Improved Iterative Parallel Interference Cancellation Receiver for Future Wireless DS-CDMA Systems
... high system loads, in AWGN and multipath fading channel, and compared to recently proposed interference-cancellation-based iterative MUD, by taking into account the number of iterations and the complexity ...
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Exact Performance Measures for Direct-Sequence Code Synchronization in Fading Channels
... current wireless personal communication system (PCS) such as cellular, microcellular, indoor, and satellite communications ...wideband CDMA (W-CDMA) are both based on direct-sequence ...
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A Robust Parametric Technique for Multipath Channel Estimation in the Uplink of a DS CDMA System
... The wireless channel can be characterized either by the conventional tapped-delay line (TDL) model or by a para- metric model where the CIR is expressed in terms of time delays and gains of dominant ...by ...
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Sphere Decoding for Space time Multiuser Detection in STBC DS CDMA System
... in CDMA system are always the foci in wireless communication ...of system and improve the transmission rate without increasing transmission power or channel bandwidth ...For CDMA ...
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Performance Enhancement of DS-CDMA System using Extended BPSK Modulation Scheme
... in wireless communication ...sophisticated wireless communication devices is efficient utilization of the ...technique. DS-CDMA is one of the competitive and most investigated technique in ...
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Signal Processing by Generalized Receiver in DS-CDMA Wireless Communication Systems with Optimal Combining and Partial Cancellation
... Another problem discussed is the problem of partial cancellation factor (PCF) in a DS-CDMA system with multipath fading channel. It is well known that the multiple access interference (MAI) can be e ...
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Performance of the Smart Antenna Aided Multicarrier DS CDMA and its Uplink
... (MC DS-CDMA), which constitutes an attractive scheme [1],[2],[3],[4], based on a combination of DS-CDMA and ...multitone DS-CDMA system pro- posed in [3] and the ...
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International Journal of Emerging Technology and Advanced Engineering
... of CDMA and spread spectrum with OFDM in order to create a more robust modulation scheme that could survive frequency selective fading and thus OFDM- CDMA was ...OFDM-CDMA system with various ...
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Blind linear multiuser detection for DS-CDMA wireless networks
... in DS-CDMA ...in CDMA are ...the system model of DS-CDMA is presented in terms of its transmitter, channel and ...for DS-CDMA ...
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Performance of Generalized Multicarrier DS CDMA over Nakagami $m$ Fading Channels
... total system bandwidth, can be optimized, in order to minimize the multiuser interference, since it has an influence on both the overlap of the modulated subcarrier signals and on the processing ...multitone ...
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Analysis of a Combined Antenna Arrays and Reverse Link Synchronous DS CDMA System over Multipath Rician Fading Channels
... the system ca- pacity through combating the effects of the CCI is the use of spatial processing with an AA at base station (BS), which is also used as a means to harness diversity from the spatial domain [1, 2, ...
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FPGA Implementation of Low Complexity VLSI Architecture for DS CDMA Communication System
... The fundamental concept used for transmitter and receiver hardware of cellular communication system is implemented for CDMA scheme. Transceiver is realized by developing VHDL codes and testing the same for ...
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Pre-Decorrelation for Coded DS-CDMA System with Space-Time Block Coding
... It was shown that these techniques, though very effective in removing the MAI, demand high computational complexity, power and knowledge of spreading codes of all users. As a result, in the downlink of a CDMA ...
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