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      • Department of Electrical and Electronics Engineering
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      Effects of channel state information uncertainty on the performance of stochastic signaling

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      Author
      Göken, Çağrı
      Gezici, Sinan
      Arıkan, Orhan
      Date
      2011
      Source Title
      2011 IEEE Global Telecommunications Conference - GLOBECOM 2011
      Publisher
      IEEE
      Language
      English
      Type
      Conference Paper
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      Abstract
      In this paper, stochastic signaling is studied for power-constrained scalar valued binary communications systems in the presence of uncertainties in channel state information (CSI). First, it is shown that, for a given decision rule at the receiver, stochastic signaling based on the available CSI at the transmitter results in a randomization between at most two different signal levels for each symbol. Then, the performance of stochastic signaling and conventional deterministic signaling is compared, and sufficient conditions are derived for improvability and nonimprovability of deterministic signaling via stochastic signaling in the presence of CSI uncertainty. Finally a numerical example is presented to explore the theoretical results. © 2011 IEEE.
      Keywords
      Probability of error
      Communications systems
      Decision rules
      In-channels
      Numerical example
      Probability of error
      Signal level
      Sufficient conditions
      Theoretical result
      Channel state information
      Signal receivers
      Stochastic systems
      Signaling
      Permalink
      http://hdl.handle.net/11693/28283
      Published Version (Please cite this version)
      http://dx.doi.org/10.1109/GLOCOM.2011.6133732
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      • Department of Electrical and Electronics Engineering 3524
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