کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
850649 909288 2013 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A time-diversity scheme for wireless optical links over exponentially modeled turbulence channels
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
A time-diversity scheme for wireless optical links over exponentially modeled turbulence channels
چکیده انگلیسی

The wireless optical communication systems attract significant research and commercial interest the last few years due to their capability of achieving wireless communications with very high and secure data rate transmission with simultaneous low installation and operational cost, without need of licensing, for relatively short propagation distances. On the other hand, due to the wireless information transmission, the influence of the atmospheric conditions, in the area between the transmitter and the receiver, at the availability and performance of these systems is very strong. A very significant phenomenon, which increases the system's efficiency, is the atmospheric turbulence. Many methods have been proposed in order to overcome this increasing and the diversity schemes compose a very efficient solution. In this work, we investigate a time-diversity scheme for free space optical channels under strong turbulence conditions modeled with the negative exponential distribution. We extract closed form mathematical expressions for the estimation of the outage probability, the average bit error rate and the maximum effective bit rate, which are metrics for the evaluation of link's availability and performance respectively. Finally, we present numerical results for many practical cases.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optik - International Journal for Light and Electron Optics - Volume 124, Issue 13, July 2013, Pages 1386–1391
نویسندگان
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