adaptive multiuser CDMA receiver
Support Vector Machine Multiuser Receiver for DS CDMA Signals in Multipath Channels
... detector (MUD) is considered for direct sequence code division multiple access (DS-CDMA) signals transmitted through multi- path channels. The emerging learning technique, called support vector machines (SVMs), is ...
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Adaptive Near Optimal Multiuser Detection Using a Stochastic and Hysteretic Hopfield Net Receiver
... This paper proposes a novel adaptive MUD algorithm for a wide variety (practically any kind) of interference limited systems, for example, code division multiple access (CDMA). The algorithm is based on ...
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Development of a Multiuser Detection Testbed
... of adaptive MMSE detectors uses training ...an adaptive law to adjust its linear ...the receiver learns the impulse response of the ...the adaptive MMSE detector is the timing of the desired ...
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Nonlinear Multiuser Receiver for Optimized Chaos-Based DS-CDMA Systems
... three users respectively. Bits of positive parity are white, while bits of negative parity are shaded. If the spreading codes are orthogonal then the correlation matrix would be the identity matrix, and the received ...
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A Near Optimum Multiuser Receiver for STBC MC CDMA Systems Based on Minimum Conditional BER Criterion and Genetic Algorithm Assisted Channel Estimation
... an adaptive optimization strategy based on the concept of deterministic ...LMS-based adaptive receiver has been proposed for MC-CDMA systems with Alamouti’s ...Such receiver is based on ...
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Design and Performance Analysis of an Adaptive Receiver for Multicarrier DS CDMA
... in multiuser communications, in which the multiple access interference (MAI) becomes the major capacity-limiting fac- ...when multiuser detection (MUD) techniques are employed to jointly detect all the ...
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Burst by Burst Adaptive Multiuser Detection CDMA: A Framework for Existing and Future Wireless Standards
... an adaptive hybrid scheme for flat Rayleigh fading channels ...PIC receiver was proposed by Sun et ...An adaptive IC scheme was investigated by Agashe and Woerner [83] for a multicellular scenario, ...
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Single and Multi Carrier DS CDMA: Multi USer Detection, Space Time Spreading, Synchronisation, Standards and Networking
... type receiver for frequency-selective fading ...(RLS) adaptive algorithm used for channel amplitude and phase ...the CDMA users [182]. In contrast to other multiuser detectors, which required ...
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Adaptive DS/CDMA Non Coherent Receiver using MULTIUSER DETECTION Technique
... TIA/EIAIS-95standardforcellularcommunications.As mobile communication systems based on CDMA are inherently subject to Multiple-Access Interference (MAI), since it is impossible to maintain orthogonal spreading ...
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Blind linear multiuser detection for DS-CDMA wireless networks
... approach, multiuser detection does not treat MAI as structure-less Gaussian ...“blind” adaptive linear mul tiuser detection for Direct Sequence (DS) - CDMA ...the receiver has only the ...
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BLIND CHANNEL ESTIMATION AND MULTIUSER DETECTION FOR MULTI-RATE CDMA COMMUNICATIONS
... several adaptive chip-level receiver structures based on the MMSE criterion [14], [15], [17] which process the samples obtained by chip-matched filtering followed by sampling at (a multiple of) chip ...the ...
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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 ...
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Multiuser Delay Tracking CDMA Receiver
... (CDMA) multiuser detector. Delay-robust SIC was initially proposed for CDMA multiuser detection when there exist time delay estimation ...
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On Quantifying Covertness of Ultra-Wideband Impulse Radio
... desired receiver and also spread the signal so that the observation bandwidth for the interceptor increases thereby making it more difficult to observe and decode the ...intended receiver which can then ...
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Performance and Analysis of DS CDMA Rake Receiver
... respectively, CDMA uses all of the available time-frequency space. One form of CDMA called Direct Sequence CDMA (DS-CDMA) uses a set of unique signature sequence or spreading codes to modulate ...
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Performance evaluation of single user and multiuser CDMA Systems
... a CDMA system, several users transmit information simultaneously and indepen dently over a common channel using preassigned signature ...a CDMA system w ith non-orthogonal waveforms conventional ...
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Blind Adaptive Decorrelating RAKE (DRAKE) Downlink Receiver for Space Time Block Coded Multipath CDMA
... proposed receiver operates by first applying a decorrelating RAKE (DRAKE) filter [6] to the received signal and then performing space-time decoding along each path component separately, thus exploiting space- time ...
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Optimal Multiuser MIMO Linear Precoding with LMMSE Receiver
... The sum capacity in a multiuser MIMO broadcast channel is defined as the maximum aggregation of all the users’ data rates. For Gaussion MIMO broadcast channels (BCs), it was proven in [12] that Dirty Paper Coding ...
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Genetic Algorithm Assisted Multiuser Detection in Asynchronous CDMA Communications
... GA-based multiuser detector was first proposed by Juntti et ...synchronous CDMA system communicating over an additive white Gaussian noise (AWGN) ...GA-based multiuser detector approaches the ...
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An Iterative Multiuser Detector for Turbo-Coded DS-CDMA Systems
... vanced CDMA systems with specific focus on system-level design of multiuser detectors for the channel coding (with emphasis on turbo and turbo-like codes), the uncoded CDMA systems, space- time block ...
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