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A New Upper Bound for Free Space Optical Channel Capacity Using a Simple Mathematical in Eq
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نویسنده
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Rezazadeh Arezu ,Abed Hodtani Ghosheh
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منبع
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journal of information systems and telecommunication - 2013 - دوره : 1 - شماره : 1 - صفحه:1 -7
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چکیده
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In this paper, by using a simple mathematical inequality, we derive a$ new upper bound fkr the capacity of$ free space optical channel in coherent case. then, by applying general fading distribution, we obtain an upper bound for mutual information in non-coherent case. finally, we derive the corresponding optimal input distributions for both coherent and non-coherent cases, compare the results with previous works numerically and illustrate that our results subsume some of previous results in special cases.
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کلیدواژه
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Mathematical inequality ,capacity ,upper bound ,free space optical channel ,optimal input distributions
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آدرس
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ferdowsi university of mashhad, ایران, ferdowsi university of mashhad, ایران
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پست الکترونیکی
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ghodtani@gmail.com
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Authors
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