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Decentralized power control with two-way training for multiple access
Published in
2008
Pages: 609 - 613
Abstract
In this work, we analyze the diversity-multiplexing performance of a MIMO multiple access wireless system with non-cooperating transmitters. Each of the transmitters and receiver use noisy and mismatched versions of the channel estimate to implement decentralized power control. While accounting for the resources consumed in training, we show that with relatively simple power control, regardless of the number of transmitters, we can achieve double the maximum diversity order of a system with no instantaneous channel state information at the transmitters. Intuitively, the gain can be attributed to using temporal degrees of freedom enabled by power control without coding over multiple coherence intervals. © 2008 IEEE.
About the journal
JournalIEEE International Symposium on Information Theory - Proceedings
ISSN21578101
Open AccessNo
Concepts (22)
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    CHANNEL ESTIMATES
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    Decentralized power control
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    Degrees of freedom
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    Diversity order
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    DIVERSITY-MULTIPLEXING
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    INSTANTANEOUS CHANNEL STATE INFORMATION
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    International symposium
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    Multiple access
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    Power controlled
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    Wireless systems
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    Beamforming
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    Cybernetics
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    Information theory
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    Mim devices
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    Multiplexing
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    Power control
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    Programming theory
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    Technical presentations
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    Telecommunication
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    Transmitters
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    Wireless telecommunication systems
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    Access control