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Multiuser Detection

Turbo Multiuser Detection Architectures

Turbo Multiuser Detection Architectures

... The purpose of the research in this thesis is to investigate the turbo princi- ple applied to multiuser detection. Two questions are of interest during this investigation. The first question is: ’what is ...

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Joint Multiuser Detection and Optimal Spectrum Balancing for Digital Subscriber Lines

Joint Multiuser Detection and Optimal Spectrum Balancing for Digital Subscriber Lines

... the detection and cancellation of interference signals have the potential to improve the overall data rate ...and multiuser detection is suitable only when crosstalk is strong, the set of frequency ...

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Design and Experimental Validation of MIMO Multiuser Detection for Downlink Packet Data

Design and Experimental Validation of MIMO Multiuser Detection for Downlink Packet Data

... of multiuser detection alone, which, for example, leads to a throughput increase of more than 0 ...However, multiuser detection would still offer some gains, as evidenced by the fact that it ...

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Optimization of multidimensional equalizers based on MMSE criteria for multiuser detection

Optimization of multidimensional equalizers based on MMSE criteria for multiuser detection

... Iterative detection is a strategy to use estimated data symbols in the current it- eration to form an estimate of the inter-symbol interference (ISI) or multi-access interference (MAI), and then subtracting it ...

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Distributed Iterative Multiuser Detection through Base Station Cooperation

Distributed Iterative Multiuser Detection through Base Station Cooperation

... asymmetric multiuser detection ...iterative detection (DID) was introduced in [24, 25]: each base station initially performs single-user detection for the strongest MT, treating the signals ...

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Random Sign Repetition Time Hopping UWB with Multiuser Detection

Random Sign Repetition Time Hopping UWB with Multiuser Detection

... the multiuser detection in UWB. Using the multiuser formulation, we are able to char- acterize UWB signals in a multiuser ...the multiuser detector is employed in the random sign ...

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EM Based Multiuser Detection in Fast Fading Multipath Environments

EM Based Multiuser Detection in Fast Fading Multipath Environments

... We address the problem of multiuser detection in fast fading multipath environments for DS-CDMA systems. In fast fading scenarios, temporal variations of the channel cause significant performance ...

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Further Study on MOE Based Multiuser Detection in Unknown Multipath

Further Study on MOE Based Multiuser Detection in Unknown Multipath

... The minimum output energy (MOE) receiver has been developed for multiuser detection when multipath distortion is present. Its performance has been shown to be very close to the minimum mean square error ...

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Genetic Algorithm Assisted Multiuser Detection for Asynchronous Multicarrier CDMA

Genetic Algorithm Assisted Multiuser Detection for Asynchronous Multicarrier CDMA

... based multiuser detection (MUD) aided multicarrier code-division multiple-access (MC CDMA) scheme was investigated in the context of frequency-selective Ray- leigh fading ...different detection ...

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Genetic Algorithm Assisted Multiuser Detection in Asynchronous CDMA Communications

Genetic Algorithm Assisted Multiuser Detection in Asynchronous CDMA Communications

... optimum multiuser detector for code-division mul- tiple-access (CDMA) systems [1], which is based on the maximum-likelihood sequence-estimation (MLSE) rule, searches exhaustively for the specific combination of ...

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Medium Access in Spread-Spectrum Ad Hoc Networks with Multiuser Detection

Medium Access in Spread-Spectrum Ad Hoc Networks with Multiuser Detection

... by multiuser detection techniques, have been studied in connection with simple medium access control protocols, for example, slotted ...iterative multiuser detection, which can provide a good ...

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A novel interleaving scheme for multiuser detection of coded CDMA systems

A novel interleaving scheme for multiuser detection of coded CDMA systems

... We show that the TSCFS detector is a very vi- able alternative in multiuser detection considering its simplicity, excellent performance, and robust- ness in near-far situations. It also improves greatly ...

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Turbo multiuser detection with integrated channel estimation for differentially coded CDMA systems.

Turbo multiuser detection with integrated channel estimation for differentially coded CDMA systems.

... iterative multiuser detection and channel estimation for the uplink of differentially coded asynchronous DS- CDMA systems in unknown m ultipath ...(SISO) multiuser filtering and the second stage ...

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Sphere Decoding for Space time Multiuser Detection in STBC DS CDMA System

Sphere Decoding for Space time Multiuser Detection in STBC DS CDMA System

... On the receiving side, we use CSI and spreading code of each user to generate space-time spreading channel matrix C i . Then we can use the sphere decoding algorithm of MIMO system as space-time multiuser ...

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Adaptive MBER space time DFE assisted multiuser detection for SDMA systems

Adaptive MBER space time DFE assisted multiuser detection for SDMA systems

... In this contribution we propose a space-time decision feedback equalization (ST-DFE) assisted multiuser detection (MUD) scheme for multiple antenna aided space division mul- tiple access systems. A minimum ...

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Combined error correction and multiuser detection for Rayleigh fading synchronous CDMA channel

Combined error correction and multiuser detection for Rayleigh fading synchronous CDMA channel

... the multiuser environment are Multiple Access Interference (MAI) and multipath ...the multiuser detection problem is the conventional (or single-user) ...

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Blind Multiuser Detection by Kurtosis Maximization for Asynchronous Multirate DS/CDMA Systems

Blind Multiuser Detection by Kurtosis Maximization for Asynchronous Multirate DS/CDMA Systems

... blind multiuser detection of single-rate DS/CDMA systems and some other applications such as blind beamforming and blind source separation (or independent component anal- ...blind multiuser ...

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BLIND CHANNEL ESTIMATION AND MULTIUSER DETECTION FOR MULTI-RATE CDMA COMMUNICATIONS

BLIND CHANNEL ESTIMATION AND MULTIUSER DETECTION FOR MULTI-RATE CDMA COMMUNICATIONS

... multi-rate multiuser detectors with lower ...linear multiuser detection, both decorrelator-based re- ceivers [71]–[75], [90] and MMSE receivers [76], [77], [90] have been studied for multi- rate ...

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Impact of Channel Estimation Errors on Multiuser Detection via the Replica Method

Impact of Channel Estimation Errors on Multiuser Detection via the Replica Method

... [16] H. Li and H. V. Poor, “Performance of channel estimation in long code DS-CDMA with and without decision feedback,” in Proc. Conference on Information Sciences and Systems, The Johns Hopkins University, Baltimore, ...

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Simultaneous Principal Component Extraction with Application to Adaptive Blind Multiuser Detection

Simultaneous Principal Component Extraction with Application to Adaptive Blind Multiuser Detection

... SIPEX-G is a fast-converging, robust, gradient-based PCA algorithm that has been recently proposed by the authors. Its superior performance in synthetic and real data compared with its benchmark counterparts makes it a ...

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