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Cell-free (CF) massive multiple-input multiple-output (MIMO) systems are expected to implement advanced cooperative communication techniques to let geographically distributed access points jointly serve user equipments. Building on the…

信息论 · 计算机科学 2022-01-25 Jiakang Zheng , Jiayi Zhang , Bo Ai

This paper considers a multi-way massive multiple-input multiple-output relaying system, where single-antenna users exchange their information-bearing signals with the help of one relay station equipped with unconventionally many antennas.…

信息论 · 计算机科学 2016-11-04 Chung Duc Ho , Hien Quoc Ngo , Michail Matthaiou , Trung Q. Duong

This paper considers multiple-input multiple-output (MIMO) relay communication in multi-cellular (interference) systems in which MIMO source-destination pairs communicate simultaneously. It is assumed that due to severe attenuation and/or…

信息论 · 计算机科学 2017-03-28 Muhammad R A Khandaker , Kai-Kit Wong

The ideas of wireless network coding at the physical layer promise high throughput gains in wireless systems with relays and multi-way traffic flows. This gain can be ascribed to two principles: (1) joint transmission of multiple…

信息论 · 计算机科学 2010-11-30 Chan Dai Truyen Thai , Petar Popovski , Megumi Kaneko , Elisabeth de Carvalho

Cell-free (CF) massive multiple-input multipleoutput (MIMO) provides a ubiquitous coverage to user equipments (UEs) but it is also susceptible to interference. Ratesplitting (RS) effectively extracts data by decoding interference, yet its…

信息论 · 计算机科学 2024-09-25 Jiakang Zheng , Jiayi Zhang , Hongyang Du , Ruichen Zhang , Dusit Niyato , Octavia A. Dobre , Bo Ai

In this letter the performance of multiple relay channels is analyzed for the situation in which multiple antennas are deployed only at the relays. The simple repetition-coded decodeand- forward protocol with two different antenna…

信息论 · 计算机科学 2008-02-20 Yijia Fan , Abdulkareem Adinoyi , John S Thompson , Halim Yanikomeroglu , H. Vincent Poor

We study an uplink scenario of a cell-free massive multiple-input multiple-output (CF-mMIMO) system with limited capacity fronthaul links (LC-FHLs) connecting each access point (AP) to the central unit (CU), where user equipments and APs…

信息论 · 计算机科学 2024-10-30 Hamed Masoumi , Mohammad Javad Emadi

Full-duplex (FD) systems have the capability to transmit and receive at the same time in the same frequency band. FD systems can reduce congestion and latency and improve coverage and spectral efficiency. As a relay, they can increase range…

信号处理 · 电气工程与系统科学 2021-10-26 Elyes Balti , Brian L. Evans

Next-generation wireless networks are poised to benefit significantly from the integration of three key technologies (KTs): Rate-Splitting Multiple Access (RSMA), cell-free architectures, and federated learning. Each of these technologies…

系统与控制 · 电气工程与系统科学 2025-01-14 S. Ali Mousavi , Mehdi Monemi , Reza Mohseni , Matti Latva-aho

In this letter, we propose a joint transmission mode and transmit/receive (Tx/Rx) antenna configuration scheme referred to as X-duplex in the relay network with one source, one amplify-and-forward (AF) relay and one destination. The relay…

信息论 · 计算机科学 2017-01-26 Shuai Li , Mingxin Zhou , Jianjun Wu , Lingyang Song , Yonghui Li , Hongbin Li

This correspondence considers a full-duplex (FD) point-to-point system consisting of one multi-antenna full-duplex access point (FD-AP) and one two-antenna full-duplex mobile station (FD-MS). We adopt simultaneous wireless information and…

网络与互联网体系结构 · 计算机科学 2016-07-01 Zhongwei Hu , Chaowei Yuan , Fengchao Zhu , Feifei Gao

In-band full-duplex transmission allows a relay station to theoretically double its spectral efficiency by simultaneously receiving and transmitting in the same frequency band, when compared to the traditional half-duplex or out-of-band…

信息论 · 计算机科学 2019-03-07 João S. Lemos , Francisco A. Monteiro , Ivo Sousa , António Rodrigues

We consider a multi-cell, frequency-selective fading, uplink channel (network MIMO) where K user terminals (UTs) communicate simultaneously with B cooperative base stations (BSs). Although the potential benefit of multi-cell cooperation…

信息论 · 计算机科学 2011-04-13 Jakob Hoydis , Mari Kobayashi , Merouane Debbah

Recent advances in massive multiple-input multiple-output (MIMO) communication show that equipping base stations (BSs) with large arrays of antenna can significantly improve the performance of cellular networks. Massive MIMO has the…

信号处理 · 电气工程与系统科学 2018-04-18 Yan Huang , Brian Jalaian , Stephen Russell , Hooman Samani

This paper established a novel multi-input multi-output (MIMO) communication network, in the presence of full-duplex (FD) transmitters and receivers with the assistance of dual-side intelligent omni surface. Compared with the traditional…

信息论 · 计算机科学 2024-08-22 Sisai Fang , Gaojie Chen , Chong Huang , Yue Gao , Yonghui Li , Kai-Kit Wong , Jonathon A. Chambers

In recent years, high-speed trains (HSTs) communications have developed rapidly to enhance the stability of train operations and improve passenger connectivity experiences. However, as the train continues to accelerate, urgent technological…

信号处理 · 电气工程与系统科学 2025-03-18 Jie Dai , Yuchen Liu , Jiakang Zheng , Ruichen Zhang , Jiayi Zhang , Bo Ai

Femtocells are an emerging technology aimed at providing gains to both network operators and end-users. These gains come at a cost of increased interference, specifically the cross network interference between the macrocell and femtocell…

网络与互联网体系结构 · 计算机科学 2013-12-10 Brett Kaufman , Jorma Lilleberg , Behnaam Aazhang

Relaying is a promising enhancement to current radio access networks. Relay enhanced LTE-Advanced networks are expected to fulfill the demanding coverage and capacity requirements in a cost-efficient way. However, due to low transmit power,…

网络与互联网体系结构 · 计算机科学 2011-11-28 Ömer Bulakci , Abdallah Bou Saleh , Simone Redana , Bernhard Raaf , Jyri Hämäläinen

In this paper, we consider a mixed RF and hybrid RF/FSO system where several mobile users transmit their data over an RF link to a relay node (e.g. a small cell base station) and the relay forwards the information to a destination (e.g. a…

信息论 · 计算机科学 2015-06-17 Vahid Jamali , Diomidis S. Michalopoulos , Murat Uysal , Robert Schober

Linear transceiving schemes between the relay and the destination have recently attracted much interest in MIMO amplify-and-forward (AF) relaying systems due to low implementation complexity. In this paper, we provide comprehensive analysis…

信息论 · 计算机科学 2014-03-11 Changick Song , Cong Ling