• 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  

      Dynamic transmission scheduling for packet radio networks 

      Panayiotou, Christos G.; Cassandras, C. G. (1998)
    • Conference Object  

      Encoder-decoder design for perfect reconstruction: A robust control perspective 

      Voulgaris, P. G.; Hadjicostis, Christoforos N.; Touri, R. (2005)
      In this paper we consider the transmission of discrete data via a communication channel that is subject to (additive) noise with a known upper bound on its magnitude but otherwise completely unknown. We are interested in ...
    • Conference Object  

      General non-stationary models for short-term and long-term fading channels 

      Charalambous, Charalambos D.; Menemenlis, N. (Institute of Electrical and Electronics Engineers Inc., 2000)
      This paper discusses the use of stochastic differential equations to model signal envelope variations over large areas, which are subject to long-term fading effects from the transmitter to local areas, followed by short-term ...
    • 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  

      On the channel capacity of wireless fading channels 

      Charalambous, Charalambos D.; Denic, S. (2002)
      The objectives of this paper are twofold. First, to point out the significance of certain results on stochastic processes in computing the channel capacity for flat fading wireless channels. Second, to design an optimal ...
    • Conference Object  

      Robust capacity of white Gaussian noise channels with uncertainty 

      Charalambous, Charalambos D.; Denic, S. Z.; Djouadi, S. M. (2004)
      This paper concerns the problem of defining, and computing the channel capacity of a continuous time additive white Gaussian noise channel when the true frequency response of the channel is not completely known to the ...