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An innovative cooperative spectrum sensing algorithm with non - ideal feedback channels and delay considerations / Muhammed Ali Fahim ; Supervised Hazim Taw{uFB01}k , Mahmoud H. Ismail

By: Contributor(s): Material type: TextTextLanguage: English Publication details: Cairo : Muhammed Ali Fahim , 2014Description: 52 Leaves ; 30cmOther title:
  • اسـتراتيجيات مبتكره لاستشعار الطيف التعاونى مع اعتبارات قنوات الاتصال غير المثاليه و التأخير فى استجابة الاجهزه المعرفيه [Added title page title]
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Dissertation note: Thesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Electronics and Communication Summary: Cognitive radio (CR) is used to overcome the spectrum scarcity problem, which results from {uFB01}xed allocation of wireless bands for di{uFB00}erent applications. CR allows unlicensed secondary users (SU) to exploit idle spectrum, which is not occupied by any licensed Primary User (PU), thus increasing the overall spectrum utilization. This should take place in a manner that assures no in{uFB02}uence on the operation of the PU itself. Decision of idle channel exploitation is a result of a process known as spectrum Sensing (SS). Accordingly, SS is a key element in the CR systems implementation and plays a major role in its overall performance. Many techniques have been developed for spectrum sensing, which vary in complexity and performance. Energy detection (ED) is a very popular technique for spectrum sensing because it is simple and does not require information about the primary signal. However, due to its poor performance under fading conditions, cooperative Sensing (CS) was suggested to enhance the robustness of the SS decisions
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Item type Current library Home library Call number Copy number Status Date due Barcode
Thesis Thesis قاعة الرسائل الجامعية - الدور الاول المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.13.08.M.Sc.2014.Mu.I (Browse shelf(Opens below)) Not for loan 01010110066140000
CD - Rom CD - Rom مخـــزن الرســائل الجـــامعية - البدروم المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.13.08.M.Sc.2014.Mu.I (Browse shelf(Opens below)) 66140.CD Not for loan 01020110066140000

Thesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Electronics and Communication

Cognitive radio (CR) is used to overcome the spectrum scarcity problem, which results from {uFB01}xed allocation of wireless bands for di{uFB00}erent applications. CR allows unlicensed secondary users (SU) to exploit idle spectrum, which is not occupied by any licensed Primary User (PU), thus increasing the overall spectrum utilization. This should take place in a manner that assures no in{uFB02}uence on the operation of the PU itself. Decision of idle channel exploitation is a result of a process known as spectrum Sensing (SS). Accordingly, SS is a key element in the CR systems implementation and plays a major role in its overall performance. Many techniques have been developed for spectrum sensing, which vary in complexity and performance. Energy detection (ED) is a very popular technique for spectrum sensing because it is simple and does not require information about the primary signal. However, due to its poor performance under fading conditions, cooperative Sensing (CS) was suggested to enhance the robustness of the SS decisions

Issued also as CD

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