Journal of Communication Engineering, Volume (2), No (4), Year (2013-8) , Pages (1-19)

Title : ( A More General Version of the Costa Theorem )

Authors: Nima Seyyed Anzabi Nejad , Ghosheh Abed Hodtani , Mohammad Molavi Kakhki ,

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In accordance with the Costa theorem, the interference which is independent of the channel input and known non-causally at the transmitter, does not affect the capacity of the Gaussian channel. In some applications, the known interference depends on the input and hence has some information. In this paper, we study the channel with input dependent interference and prove a capacity theorem that not only subsumes the Costa theorem but also explains interestingly interpretable impact of correlation between side information and channel input on the capacity.


, Gaussian channel capacity, correlated side information, two sided state
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author = {Seyyed Anzabi Nejad, Nima and Abed Hodtani, Ghosheh and Molavi Kakhki, Mohammad},
title = {A More General Version of the Costa Theorem},
journal = {Journal of Communication Engineering},
year = {2013},
volume = {2},
number = {4},
month = {August},
issn = {2322-4088},
pages = {1--19},
numpages = {18},
keywords = {Gaussian channel capacity; correlated side information; two sided state information},


%0 Journal Article
%T A More General Version of the Costa Theorem
%A Seyyed Anzabi Nejad, Nima
%A Abed Hodtani, Ghosheh
%A Molavi Kakhki, Mohammad
%J Journal of Communication Engineering
%@ 2322-4088
%D 2013