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العنوان
Advanced Mimo techniques for Long term Evolution \
المؤلف
Khashaba,Amr Tarek Ahmed Abdel-Razik
هيئة الاعداد
باحث / عمرو طارق أحمد عبد الرازق خشبة
مشرف / سلوى حسين الرملى
مشرف / ميريت محمود صادق
مناقش / عبدالحليم ذكرى
تاريخ النشر
2016
عدد الصفحات
90p.:
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
الهندسة الكهربائية والالكترونية
تاريخ الإجازة
1/1/2016
مكان الإجازة
جامعة عين شمس - كلية الهندسة - قسم الالكترونيات والإتصالات
الفهرس
Only 14 pages are availabe for public view

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from 131

Abstract

In modern wireless networks, the throughput achieved by the edge users is a key
erformance indicator of the network. Enhancing the edge user throughput can be
achieved through mitigating intercell interference. Long term evolution (LTE) introduces
a new technique for interference mitigation through coordination between
BSs denoted as coordinated multipoint (CoMP) transmission reception systems.
CoMP promises an enhanced edge user downlink throughput, especially in TDD
systems. Radio frequency (RF) calibration is necessary for proper CoMP operation.
In this thesis, the RF calibration problem in CoMP systems is discussed and
analyzed and new techniques are proposed.
We study the performance of di erent CoMP schemes and di erent precoders
under RF mismatch calibration errors. Numerical results are provided which show
the best precoder and the best CoMP mode candidates given di erent SNR and
calibration error levels.
In addition, a new iterative MMSE-based calibration scheme is introduced and
simulation results are provided showing superior performance compared to traditional
algorithms. Moreover, a new mobility-aware calibration point selection
algorithm is proposed for di erent types of calibration in CoMP systems. Full