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Register a new userSimulation and estimation for cooperative communication performance in wireless communication systems
محاكاة و تقدير أداء الاتصالات التعاونية في أنظمة الاتصالات اللاسلكية
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على الرغم من كون تقنية متعدد المداخل متعدد المخارج MIMO تُحسّن من وثوقية نظام الارسال اللاسلكي و من معدل النقل، إلا أن هذا التحسن يكون على حساب التكلفة المرتفعة في العتاد الصلب Hardware و زيادة في الحجم إضافة الى التعقيد البنيوي ، لذلك فإن فعالية التكلفة cost-effective لتنفيذ هذه التقنية ما زالت تحدٍ قائم. يمكن تحسين الأداء دون زيادة الكلفة بشكل كبير باستخدام أنظمة MIMO افتراضية حيث يتم تحقيق التباعد باستخدام أجهزة موجودة مسبقا ضمن البنية التحتيه للشبكة و تسمى هذه الأنظمة عندئذ بأنظمة الاتصالات التعاونية و التي هي موضوع البحث. تتم المحاكاة باستخدام برمجيات محاكاة معيارية R2013b MATLAB و عامة مفتوحة المصدر Open Source محاكي الشبكات Network Simulator -3. لتوصيف مشاكل الاتصال في الشبكات اللاسلكية و اقتراح الحلول المناسبة .
Although Multi-Input-Multi-Output MIMO improve reliability of wireless transmission system and increase bit rate, but this improvement relay on higher cost in Hardware and increase in size as well as complex structure, so the cost-effective challenge still exists to implement these technique. Performance can be improved without increasing the cost significantly by using virtual MIMO systems where the spacing is achieved by using pre-existing devices within the network infrastructure, these systems called cooperative communication systems, which are the subject of this research. The simulation is based on standard software for modeling MATLAB and open sourced Network simulator-3 (NS-3) to characterize problems in wireless communications systems and propose appropriate solutions.
References used
NIMAY CH. GIRI1؛ ANWESHA SAHOO؛ J. R. SWAIN;P. KUMAR,;A. NAYAK؛ P. DEBOGOSWAMI ؛Capacity & Performance Comparison of SISO and MIMO System for Next Generation Network (NGN) 1Lecturer, Department of ECE, 2,3,4,5,6B.Tech Scholar, Centurion University of Technology and Management
NIMAY CH. GIRI ؛ RUPANITA DAS AND SK MOHAMMED ALI; “BER Analysis And Performance Of MIMO-OFDM System Using BPSK Modulation Scheme For Next Generation Communication Systems,” (IJESRT), Vol. 3, Issue 3, 2014, 1622-1629
SENGAR,K. RANI, N. “Study and Capacity Evaluation of SISO, MISO and MIMO RF Wireless Communication Systems,” IJETT, Vol. 9, No. 9, 2014
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شبكات الحساسات اللاسلكية
العلامات الحياتية
شبكات الحساسات اللاسلكية الحيوية
بروتوكول التوجيه بالزمن الحقيقي
استدعاء الطرق عن بعد
Vital signs
(WSN (wireless sensor networks
(WBSN (wireless body sensor networks
RTLD (Real-time with load distributed routing) Protocol
(RMI (Remote method invocation
المزيد..
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ون بين المحطات القاعدية على الوصلة الهابطة (Downlink) في هذا النوع من الأنظمة وسبر أداء هذه الخوارزميات من خلال بعض نتائج المحاكاة.
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