کنفرانس مهندسی برق ایران

صفحه اصلی / سی امین کنفرانس بین المللی مهندسی برق

IRS-aided NOMA in a Cell Free Massive MIMO System

نویسندگان :

Anahid Rafieifar¹ Hosein Ahmadinejad² Abolfazl Falahati³

1- دانشگاه علم و صنعت ایران 2- دانشگاه علم و صنعت ایران 3- دانشگاه علم و صنعت ایران

کلمات کلیدی :

cell free massive MIMO, IRS, NOMA, user clustering,

چکیده :

In this paper, intelligent reflecting surfaces (IRSs) are employed to improve spectral efficiency (SE) in downlink of a cell-free massive multiple input multiple output (CF-MaMIMO) network where, non-orthogonal multiple access (NOMA) is used to improve the SE and number of served users. High number of users, access points (APs) and IRSs in a CF MaMIMO-NOMA system cause optimization complex for active and passive beamforming which is extremely time-consuming and infeasible in practice. Therefore, in this paper, we advocate conjugate beamforming for active and passive beamforming at the APs and IRSs, respectively. Each IRS performs passive beamforming to compensate the effect of channel to its assigned user. Consequently, two simple, practical and independent algorithms for IRS assignment to users and user clustering in NOMA are proposed. For performance analysis, complexity of the proposed algorithms are analyzed. Finally, numerical results corroborate the improved performance of the proposed system compared with traditional CF-MaMIMO-NOMA one.

لیست مقالات

لیست مقالات بایگانی شده

Designing of Multilayer Planar Spiral Air-Core Inductor for Power Electronic Applications

Mohammad Khakroei - Mohsen Mostafaei - Mansour Arefian - Afshin Rezaei-Zare - Majid Najafi Zarmehri

Joint Request Aggregation and Content Caching at the Edge via Named Data Networking

Parisa Bakhtou - Siavash Khorsandi

Kalman Filter Fusion Based on Interactive Multiple Model for Target Tracking in Wireless Sensor Networks

Zahra Zamani - Behrouz Safarinejadian

A Transformer less Quadratic Boost DC-DC Converter with Continuous Input Current and a Few Number of Components, Based on Classical Boost and Cuk Converter Suitable for Renewable Applications

Saeed Mahdizadeh - Reza Sharifi Shahrivar - Hossein Gholizadeh - Ebrahim Afjei

Real-Time Stress Detection via Photoplethysmogram Signals: Implementation of a Combined Continuous Wavelet Transform and Convolutional Neural Network on Resource-Constrained Microcontrollers

Yasin Hasanpoor - Amin Rostami - Bahram Tarvirdizadeh - Khalil Alipour - Mohammad Ghamari

A Novel Generation Shedding Procedure for Power Management System in Industrial Power Plants

Erfan Asadi - Hamid Khoshkhoo - Ali Parizad

طراحی کنترل‌کننده‌ی جدول‌بندی بهره‌ی پس‌خورد خروجی کلیدزن مقاوم برای سیستم‌های پارامتر متغیر خطی نامعین چندوجهی پیوسته-زمان

رضا یاوری - سعید شمقدری - آرش صادق‌زاده

Finite-Time Bipartite Time-Varying Formation tracking for Heterogeneous Nonlinear Multi-Agent Systems

Mohammad Reza Mehrabi Koushki - Javad Askari - Marzieh Kamali

Transmission and Energy Storage Co-Planning Expansion Considering Short-Term Uncertainties under Renewable Penetration

Mojtaba Moradi-Sepahvand - Turaj Amraee

Design of Fresnel-Region Millimeter-Wave Metasurface Beam Shaper Using Deep Learning

Mohammad Hossein Koohi Ghamsari - Ehsan Imanbeygi - Mehdi Ahmadi-Boroujeni

بیشتر

ثمین همایش، سامانه مدیریت کنفرانس ها و جشنواره ها - نگارش 42.0.4