کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
446909 1443182 2012 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Cluster based power efficient cooperative spectrum sensing under reduced bandwidth using location information
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر شبکه های کامپیوتری و ارتباطات
پیش نمایش صفحه اول مقاله
Cluster based power efficient cooperative spectrum sensing under reduced bandwidth using location information
چکیده انگلیسی

Frequency spectrum sharing between licensed primary users (PUs) and unlicensed secondary users (SUs) requires the SUs to reliably detect the spectrum occupancy. Due to multipath fading, single terminal detection is unreliable and results in a high probability of missed detection. This is solved by applying cooperative detection. However, when the number of SUs is large, the bandwidth for reporting their sensing results to the common receiver will be very huge. In this paper, we propose an improved frequency divisional cluster based cooperative spectrum sensing based on the location information which employs a censoring method to reduce the average number of sensing bits sent to the common receiver. The reduction in the number of sensing bits using proposed method in turn reduces the total transmission power of the secondary users in the cognitive network thus improving its battery life.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: AEU - International Journal of Electronics and Communications - Volume 66, Issue 8, August 2012, Pages 619–624
نویسندگان
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