Browsing by Subject "Mutual informations"

Now showing items 1-7 of 7

    • Conference Object  

      Capacity for MIMO systems at low SNR 

      Ioannou, I.; Charalambous, Charalambos D.; Denic, S. (2010)
      The paper introduces an asymptotic series expansion for the mutual information of Multiple-Input Multiple-Output (MIMO) channels. For low signal to noise ratio (SNR) the first term of expansion approaches mutual information ...
    • Conference Object  

      Ergodic capacity under channel distribution uncertainty 

      Loyka, S.; Charalambous, Charalambos D.; Ioannou, I. (Institute of Electrical and Electronics Engineers Inc., 2014)
      The impact of channel distribution uncertainty on the performance of fading channels is studied. The compound capacity of a class of ergodic fading channels subject to channel distribution uncertainty is obtained, for ...
    • Article  

      Information theoretic bounds for compound MIMO Gaussian channels 

      Denic, S. Z.; Charalambous, Charalambos D.; Djouadi, S. M. (2009)
      In this paper, achievable rates for compound Gaussian multiple-input-multiple-output (MIMO) channels are derived. Two types of channels, modeled in the frequency domain, are considered when: 1) the channel frequency response ...
    • Conference Object  

      Minimizing outage probability for a class of MIMO channels 

      Charalambous, Charalambos D.; Ioannou, I. (2009)
      In this paper we investigate the outage probability of Multiple-Input Multiple-Output (MIMO) channels, when the probability distribution of the channel gains is not completely known to the transmitter and receiver. The ...
    • Article  

      Mutual information expansion for MIMO systems and capacity formulae at low SNR 

      Ioannou, I.; Charalambous, Charalambos D.; Denic, S. (2011)
      The paper introduces a new asymptotic series expansion for the mutual information of multiple-input multiple-output (MIMO) channels. The expansion approaches mutual information from below, and for low signal to noise ratio ...
    • Conference Object  

      Robust capacity for additive colored Gaussian uncertain channels 

      Charalambous, Charalambos D.; Denic, S. Z.; Djouadi, S. M. (2005)
      This paper is concerned with the definition and computation of channel capacity of continuous time additive Gaussian channels, when the channel is subject to uncertainty, the noise power spectral density is known and the ...
    • Conference Object  

      Variational equalities of directed information and applications 

      Stavrou, P. A.; Charalambous, Charalambos D. (2013)
      In this paper we introduce two variational equalities of directed information, which are analogous to those of mutual information employed in the Blahut-Arimoto Algorithm (BAA). Subsequently, we introduce nonanticipative ...