پديد آورنده :
افشاري فر، رضا
عنوان :
بهره وري انرژي در سيستم هاي همكارانه چند آنتني با دسترسي چندگانه غير متعامد حوزه ي توان
مقطع تحصيلي :
كارشناسي ارشد
گرايش تحصيلي :
مخابرات سيستم
محل تحصيل :
اصفهان : دانشگاه صنعتي اصفهان
صفحه شمار :
سيزده، 58ص.: مصور، جدول، نمودار
استاد راهنما :
محمد صادق فاضل، فروغ السادات طباطبا
توصيفگر ها :
دسترسي چندگانه غير متعامد , مخابرات همكارانه , بهره وري انرژي
استاد داور :
احسان يزديان
تاريخ ورود اطلاعات :
1399/08/14
رشته تحصيلي :
برق و كامپيوتر
دانشكده :
مهندسي برق و كامپيوتر
تاريخ ويرايش اطلاعات :
1399/08/18
چكيده انگليسي :
Energy Efficiency in MIMO Cooperative Systems with Non Orthogonal Multiple Access in Power Domain Reza Afshari Far r afshari@ec iut ac ir August 18 2020 Department of Electrical and Computer Engineering Isfahan University of Technology Isfahan 84156 83111 IranDegree Master of Science Language FarsiSupervisors Mohamma Sadegh Fazel Assistant Prof fazel@iut ac ir Foroogh S Tabataba Assistant Prof fstabataba@iut ac ir AbstractNon orthogonal Multiple Access NOMA method due to its improved spectral efficiency and cooperativesystem due to its reduced fading effect are two important methods to meet the requirements for increasingcapacity in next generation in wireless communications systems On the other hand considering the limitationin energy consumption due to environmental issues as well as the cost of providing energy optimizing energyefficiency has become an important issue in recent years Therefore in this thesis a system based on cooperative communications with non orthogonal multiple accessis provided by considering two users including a central user and a cell edge user In this system model thecentral user acts both as a user as well as a relay for the base station to increase the signal quality of the celledge user Considering the importance of the energy issue energy efficiency in the proposed system modelis examined Since the joint optimization problem for finding precoding matrices in base station and relay which targeting energy efficiency is difficult The problem is solved individually for each variable by fixingother variables For some variables when the problem is in fractional form the Dinklabach algorithm is used The results shows that the proposed method provides higher energy efficiency compared to ZF precoding andrandom precoding for different number of antenna and different location of relay KeywordsNon orthogonal Multiple Access Cooperative Communications Energy Efficiency
استاد راهنما :
محمد صادق فاضل، فروغ السادات طباطبا
استاد داور :
احسان يزديان
