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Near-optimal low complexity joint estimation of cochannel ISI signals for mobile receivers
Published in
1999
Volume: 2
   
Pages: 1330 - 1334
Abstract
Cochannel interference affects not only the signal quality, but also the capacity of most wireless cellular networks. Unlike in spread spectrum communications, in systems employing non-spread signals, cochannel signal suppression is expensive. Moreover, at the portable station, joint estimation rather than suppression of the cochannel signal(s) may be a cheaper alternative and may oftentimes also provide a better signal quality. In this work we propose a novel two-stage joint Viterbi algorithm with full feedback. This technique, which is sub-optimal to the ideal joint maximum likelihood sequence estimator, provides an excellent way to trade complexity for performance, and is amenable for single-input mobile and hand-held receiver implementations.
About the journal
JournalIEEE VTS 50th Vehicular Technology Conference, VTC 1999-Fall
ISSN07400551
Open AccessNo
Concepts (10)
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    Viterbi algorithm
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    Algorithms
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    Cochannel interference
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    Computational complexity
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    Interference suppression
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    Intersymbol interference
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    Maximum likelihood estimation
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    Radio interference
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    Radio receivers
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    Cellular radio systems