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相关论文: Next Generation Multiple Access with Cell-Free Mas…

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A cell-free massive multiple-input multiple-output (CF-mMIMO) system is considered for enhancing the monitoring performance of wireless surveillance, where a large number of distributed multi-antenna aided legitimate monitoring nodes (MNs)…

信息论 · 计算机科学 2024-07-18 Zahra Mobini , Hien Quoc Ngo , Michail Matthaiou , Lajos Hanzo

Cell-free massive MIMO (multiple-input multiple-output) is a promising network architecture for beyond 5G systems, which can particularly offer more uniform data rates across the coverage area. Recent works have shown how reconfigurable…

信号处理 · 电气工程与系统科学 2024-09-25 Özlem Tuğfe Demir , Emil Björnson

While 5G networks are being rolled out, the definition of the potential 5G-Advanced features and the identification of disruptive technologies for 6G systems are being addressed by the scientific and academic communities to tackle the…

信息论 · 计算机科学 2023-02-02 Alessandro Guidotti , Alessandro Vanelli-Coralli , Carla Amatetti

Distributed multiple-input multiple-output (D\mbox{-}MIMO) is a promising technology to realize the promise of massive MIMO gains by fiber-connecting the distributed antenna arrays, thereby overcoming the form factor limitations of…

In what ways could cellular massive MIMO be improved? This technology has already been shown to bring huge performance gains. However, coverage holes and difficulties to transmit multiple streams to multi-antenna users because of…

信号处理 · 电气工程与系统科学 2025-01-08 Sara Willhammar , Hiroki Iimori , Joao Vieira , Lars Sundström , Fredrik Tufvesson , Erik G. Larsson

Federated learning (FL) has been considered as a promising learning framework for future machine learning systems due to its privacy preservation and communication efficiency. In beyond-5G/6G systems, it is likely to have multiple FL groups…

信息论 · 计算机科学 2021-07-21 Tung T. Vu , Hien Quoc Ngo , Thomas L. Marzetta , Michail Matthaiou

Cell-free massive MIMO systems have promising data rate and uniform coverage gains. These systems, however, typically rely on optical fiber based fronthaul for the communication between the central processing unit (CPU) and the distributed…

信息论 · 计算机科学 2022-08-09 Umut Demirhan , Ahmed Alkhateeb

Cell-free massive multiple-input multiple-output (MIMO) employs a large number of distributed access points (APs) to serve a small number of user equipments (UEs) via the same time/frequency resource. Due to the strong macro diversity gain,…

信息论 · 计算机科学 2021-11-23 Jiayi Zhang , Jing Zhang , Derrick Wing Kwan Ng , Shi Jin , Bo Ai

Cell-free massive multiple-input multiple-output (CFmMIMO) is a paradigm that can improve users' spectral efficiency (SE) far beyond traditional cellular networks. Increased spatial diversity in CFmMIMO is achieved by spreading the antennas…

信号处理 · 电气工程与系统科学 2024-08-01 Vida Ranjbar , Robbert Beerten , Marc Moonen , Sofie Pollin

In traditional cellular networks, users at the cell edge often suffer from poor quality of service (QoS) due to large distance-dependent path loss and severe inter-cell interference. While cell-free (CF) massive multi-input multi-out (MIMO)…

信息论 · 计算机科学 2025-04-28 Wei Jiang , Hans Dieter Schotten

The impressive growth of wireless data networks has recently led to increased attention to the issue of electromagnetic pollution. Specific absorption rates and incident power densities have become popular indicators for measuring…

信息论 · 计算机科学 2024-10-28 Sergi Liesegang , Stefano Buzzi

Cellular communication is a widely used technology in the world where the coverage area is divided into multiple cells. Interference is one of the most important challenges in cellular networks which causes problems by reducing the quality…

信息论 · 计算机科学 2022-08-30 Marzieh Arasteh , Narges Yarahmadi Gharaei , Mehrdad Ardebilipour

The increasingly demanding objectives for next generation wireless communications have spurred recent research activities on multi-antenna transceiver hardware architectures and relevant intelligent communication schemes. Among them belong…

信息论 · 计算机科学 2022-05-18 George C. Alexandropoulos , Md Atiqul Islam , Besma Smida

Multiuser multiple-input multiple-output wireless communications systems have the potential to satisfy the performance requirements of fifth-generation and future wireless networks. In this context, cell-free (CF) systems, where the…

信息论 · 计算机科学 2021-12-06 André Flores , Rodrigo C. de Lamare , Kumar Vijay Mishra

A Cell-Free Massive MIMO (multiple-input multiple-output) system comprises a very large number of distributed access points (APs)which simultaneously serve a much smaller number of users over the same time/frequency resources based on…

信息论 · 计算机科学 2017-01-18 Hien Quoc Ngo , Alexei Ashikhmin , Hong Yang , Erik G. Larsson , Thomas L. Marzetta

We consider a cell-free massive multiple-input multiple-output (mMIMO) network, where unmanned aerial vehicles (UAVs) equipped with multiple antennas serve as distributed UAV-access points (UAV-APs). These UAV-APs provide seamless coverage…

信号处理 · 电气工程与系统科学 2025-02-10 Neetu R. R , Ozan Alp Topal , Özlem Tuğfe Demir , Emil Björnson , Cicek Cavdar , Gourab Ghatak , Vivek Ashok Bohara

In conventional multiple-input multiple-output (MIMO), static array configurations struggle in dynamic environments, and further antenna scaling is bounded by cost, energy, and footprint. Emerging approaches, which can enable…

信息论 · 计算机科学 2025-11-11 Zhe Wang , Jiayi Zhang , Bokai Xu , Wenhui Yi , Emil Björnson , Bo Ai

We study support for unmanned aerial vehicle (UAV) communications through a cell-free massive MIMO architecture. Under the general assumption that the propagation channel between the mobile stations, either UAVs or ground users, and the…

信号处理 · 电气工程与系统科学 2019-02-12 Carmen D'Andrea , Adrian Garcia-Rodriguez , Giovanni Geraci , Lorenzo Galati Giordano , Stefano Buzzi

We consider fronthaul-limited generalized zeroforcing-based cell-free massive multiple-input multiple-output (CF-mMIMO) systems with multiple-antenna users and multipleantenna access points (APs) relying on both cooperative beamforming (CB)…

信息论 · 计算机科学 2025-06-18 Zahra Mobini , Ahmet Hasim Gokceoglu , Li Wang , Gunnar Peters , Hien Quoc Ngo

Cell-free massive multiple-input multiple-output (CF mMIMO) has emerged as a prominent candidate for future networks due to its ability to significantly enhance spectral efficiency by eliminating inter-cell interference. However, its…

信息论 · 计算机科学 2025-07-03 Yukun Ma , Jiayi Zhang , Ziheng Liu , Guowei Shi , Bo Ai