DS-CDMA multiple user interference
Interference Management for DS CDMA Systems through Closed Loop Power Control, Base Station Assignment, and Beamforming
... in DS-CDMA system is analyzed in three stages according to Figure 1 ...desired user. The desired user resolvable paths’ directions are fed to the beamformer to reduce the inter-path ...
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Study and analysis the BER performance of linear multiuser detectors in non-Gaussian noise channel
... code-division multiple-access (DS-CDMA) communications.. Multi-user detection algorithms mitigate structured multiple access interference in CDMA communication ...single ...
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Joint interference cancellation and relay selection algorithms based on greedy techniques for cooperative DS CDMA systems
... propose interference cancellation techniques and a multi-relay selection algorithm based on greedy methods for the uplink of cooperative direct-sequence code-division multiple access (DS-CDMA) ...
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Binary De Bruijn sequences for DS CDMA systems: analysis and results
... division multiple access (CDMA) using direct sequence (DS) spread spectrum modulation provides multiple access capability essentially thanks to the adoption of proper sequences as spreading ...
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DS CDMA Implementation with Iterative Multiple Access Interference Cancellation Y Mallikarjuna Reddy & A Manya Naik
... In this model each user transmits an input data stream, {du (i)} € {1, 2. . . U} with u € {1, 2. . . U}, and i € {1, 2. . . L}, where each individual data bit is first encoded with a rate R0 and then passed ...
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Distributed Resource Allocation Assisted by Intercell Interference Mitigation in Downlink Multicell MC DS CDMA Systems
... MC DS-CDMA will be at the order of the number of time domain resolvable paths of wireless channels and, hence, will usually be low ...MC DS-CDMA can be a promising solution for supporting ...
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Interference Free Broadband Single and Multi Carrier DS CDMA
... code-division multiple access (DS-CDMA) systems, the spreading sequences characterize the associated intersymbol interfer- ence (ISI) as well as the multiple access interfer- ence (MAI) ...
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Performance Analysis of Multi User Detectors for Synchronous DS CDMA Systems
... division multiple access (DS-CDMA) is a prevalent remote ...from Multiple Access Interference (MAI) brought about by Direct Sequence users and near –far ...single user matched ...
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A Novel Technique for Multiple Access Interference Reduction in DS-CDMA Wireless Communications
... successive interference cancellation (SIC) technique is very powerful method to reduce interference to such an extent that spectral efficiency of a channel can reach to Shannon capacity under ideal ...
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ADAPTIVE CODE TO USER ALLOCATION FOR INTERFERENCE MANAGEMENT ON THE DOWNLINK DS-CDMA SYSTEMS
... In CDMA systems interference is the major ...the interference results in direct increase in system ...This interference reduction can be controlled by investing additional por per user ...
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Analytical Bit Error Rate Performance of DS CDMA Ad Hoc Networks using Large Area Synchronous Spreading Sequences
... division multiple access (DS-CDMA) assisted ad hoc networks is investigated in the context of a single-hop infinite mesh of rectilinearly located ad hoc ...LAS DS-CDMA exhibits a sig- ...
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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
... division multiple access (DS-CDMA) receiver in the presence of frequency-selective Rayleigh ...inter-path interference is canceled in other paths in each RAKE ...the multiple access ...
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Timing Free Blind Multiuser Detection for Multicarrier DS/CDMA Systems with Multiple Antennae
... multicarrier DS-CDMA system employing multiple transmit and receive antennae over a Rayleigh fading channel is considered in this ...the user to be decoded only, while no further information ...
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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] ...
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Exploring the reconfigurability options of multi carrier CDMA in cognitive radio systems
... Equalization at the receiver side is necessary to counter the channel effects leading to the loss of orthogonality between the signals. Single-user detection (SUD) using linear equal- izers such as maximum ratio ...
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Multicarrier DS CDMA: A Multiple Access Scheme for Ubiquitous Broadband Wireless Communications
... broadband multiple access system with bandwidth on the order of tens or even hun- dreds of ...code-division multiple access schemes: single-carrier direct- sequence CDMA (SC DS-CDMA), ...
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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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Evaluation of BER in CDMA with Parallel Interference Cancellation
... parallel interference cancellation (PIC) scheme in Code division multiple access with cyclic prefix (CP-CDMA) systems and proposed a new model for cyclic prefix code division multiple access ...
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Performance of Turbo Interference Cancellation Receivers in Space Time Block Coded DS CDMA Systems
... In this section, we investigate the RCPTC scheme based on a rate r = 1/3 mother code for a Rayleigh fading channel model. The data bits of each user for the rate r = 1/3 encoder are assigned according to ...
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Performance of Broadband Multicarrier DS CDMA using Space Time Spreading Assisted Transmit Diversity
... direct-sequence CDMA (MC DS-CDMA) using STS-assisted transmit diversity, when communicating over frequency-selective Rayleigh-fading ...MC DS-CDMA is because it constitutes a ...
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