کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
453601 694978 2016 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Spectrum-sensing in cognitive radio networks over composite multipath/shadowed fading channels
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر شبکه های کامپیوتری و ارتباطات
پیش نمایش صفحه اول مقاله
Spectrum-sensing in cognitive radio networks over composite multipath/shadowed fading channels
چکیده انگلیسی


• Performance of ED in CRNs over EGK fading channels is analyzed.
• Unified analytical expressions for the average detection probability are derived.
• Performance of diversity reception and cooperative sensing is analyzed.

This paper analyzes the performance of spectrum-sensing-based energy detection (ED) in cognitive radio networks (CRNs) over generalized fading channels. The fading channel is modeled by the extended generalized-K (EGK) distribution. Exact and accurate analytical expressions for the average detection probability with different detection schemes, such as, single channel, diversity reception, and cooperative spectrum sensing, are derived and evaluated. Obtained expressions can be reduced to other well-known fading channels such as, Weibull, Nakagami-m, and Rayleigh. It is shown that the analytical framework can be used for both integer and non-integer values of the fading/shadowing parameters. The impact of key fading/shadowing parameters on the performance of energy detectors is discussed with receiver operating characteristics (ROC) curves. The accuracy of the derived analytical expressions is corroborated via Monte-Carlo simulation results.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Electrical Engineering - Volume 52, May 2016, Pages 337–348
نویسندگان
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