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   capacity bounds and high-snr capacity of the additive exponential noise channel with additive exponential interference  
   
نویسنده monemizadeh m. ,fehri h. ,abed hodtani gh. ,hajizadeh s.
منبع iranian journal of electrical and electronic engineering - 2020 - دوره : 16 - شماره : 2 - صفحه:137 -145
چکیده    Communication in the presence of a priori known interference at the encoder has gained great interest because of its many practical applications. in this paper, additive exponential noise channel with additive exponential interference (aenc-aei) known noncausally at the transmitter is introduced as a new variant of such communication scenarios. first, it is shown that the additive gaussian channel with a priori known interference at the encoder when the transmitter suffers from a fast-varying phase noise can be modeled by the aenc-aei. then, capacity bounds for this channel under a non-negativity constraint as well as a mean value constraint on input are derived. finally, it is shown both analytically and numerically that the upper and lower bounds coincide at high signal to noise ratios (snrs), and therefore, the capacity of the aenc-aei at high snrs is obtained. interestingly, this high snr-capacity has a simple closed-form expression and is independent of the interference mean, analogous to its gaussian counterpart.
کلیدواژه capacity bounds ,dirty paper channel ,exponential noise ,high-snr capacity
آدرس ‎university of neyshabur‎, department of electrical engineering‎, iran, ‎‎university of zabol‎, department of electrical engineering‎, iran, ferdowsi ‎‎university of mashhad‎, department of electrical engineering‎, iran, ‎university of illinois at chicago‎, department of electrical and computer engineering‎, ‎usa
پست الکترونیکی shajiz2@uic.edu
 
     
   
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