Multiuser signal detection using sequential decoding

The application of sequential decoding to the detection of data transmitted over the additive white Gaussian noise channel by K asynchronous transmitters using direct-sequence spread-spectrum multiple access (DS/SSMA) is considered. A modification of R.M. Fano's (1963) sequential-decoding metri...

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Published in:IEEE transactions on communications 1990-05, Vol.38 (5), p.578-583
Main Authors: Xie, Z., Rushforth, C.K., Short, R.T.
Format: Article
Language:English
Subjects:
Additive noise
Additive white noise
Applied sciences
Coding, codes
Convolutional codes
Detectors
Exact sciences and technology
Information, signal and communications theory
Maximum likelihood decoding
Maximum likelihood detection
Signal and communications theory
Signal detection
Spread spectrum communication
Telecommunications and information theory
Transmitters
Viterbi algorithm
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cited_by cdi_FETCH-LOGICAL-c334t-3afc381fef29adb60c1f0496c270456256c655251b8109d30ba29ffb7c4b70853
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description The application of sequential decoding to the detection of data transmitted over the additive white Gaussian noise channel by K asynchronous transmitters using direct-sequence spread-spectrum multiple access (DS/SSMA) is considered. A modification of R.M. Fano's (1963) sequential-decoding metric, allowing the messages from a given user to be safely decoded if its E/sub b//N/sub 0/ exceeds -1.6 dB, is presented. Computer simulation is used to evaluate the performance of a sequential decoder that uses this metric in conjunction with the stack algorithm. In many circumstances, the sequential decoder achieves results comparable to those obtained using the much more complicated optimal receiver.< >
doi_str_mv 10.1109/26.54970
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source IEEE Electronic Library (IEL) Journals
subjects Additive noise
Additive white noise
Applied sciences
Coding, codes
Convolutional codes
Detectors
Exact sciences and technology
Information, signal and communications theory
Maximum likelihood decoding
Maximum likelihood detection
Signal and communications theory
Signal detection
Spread spectrum communication
Telecommunications and information theory
Transmitters
Viterbi algorithm
title Multiuser signal detection using sequential decoding
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