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We investigate the user-to-cell association (or user-clustering) and beamforming design for Cloud Radio Access Networks (CRANs) and Fog Radio Access Networks (FogRANs) for 5G. CRAN enables cloud centralized resource and power allocation…

信号处理 · 电气工程与系统科学 2018-02-06 Nicolas Pontois , Megumi Kaneko , Thi Ha Ly Dinh , Lila Boukhatem

Reconfigurable antennas (RAs) are a promising technology to enhance the capacity and coverage of wireless communication systems. However, RA systems have two major challenges: (i) High computational complexity of mode selection, and (ii)…

We consider unsourced random access (uRA) in user-centric cell-free (CF) wireless networks, where random access users send codewords from a common codebook during specifically dedicated random access channel (RACH) slots. The system is…

信息论 · 计算机科学 2024-08-16 Eleni Gkiouzepi , Burak Çakmak , Manfred Opper , Giuseppe Caire

Pinching antennas have emerged as a promising technology for reconfiguring wireless propagation environments, particularly in high-frequency communication systems operating in the millimeter-wave and terahertz bands. By enabling dynamic…

The fifth generation and beyond wireless communication will support vastly heterogeneous services and use demands such as massive connection, low latency and high transmission rate. Network slicing has been envisaged as an efficient…

信号处理 · 电气工程与系统科学 2020-04-02 Fei Song , Jun Li , Chuan Ma , Yijin Zhang , Long Shi , Dushantha Nalin K. Jayakody Li

To optimally cover users in millimeter-Wave (mmWave) networks, clustering is needed to identify the number and direction of beams. The mobility of users motivates the need for an online clustering scheme to maintain up-to-date beams towards…

网络与互联网体系结构 · 计算机科学 2021-03-10 Medhat Elsayed , Melike Erol-Kantarci

Resource allocation in wireless networks typically occurs at PHY/MAC layers, while random network coding (RNC) is a network layer strategy. An interesting question is how resource allocation mechanisms can be tuned to improve RNC…

网络与互联网体系结构 · 计算机科学 2013-03-27 Kai Su , Dan Zhang , Narayan B. Mandayam

Cloud radio access network (C-RAN) and massive multiple-input-multiple-output (MIMO) are two key enabling technologies to meet the diverse and stringent requirements of the 5G use cases. In a C-RAN system with massive MIMO, fronthaul is…

信号处理 · 电气工程与系统科学 2018-10-11 Jobin Francis , Gerhard Fettweis

Resource allocation is a fundamental task in cell-free (CF) massive multi-input multi-output (MIMO) systems, which can effectively improve the network performance. In this paper, we study the downlink of CF MIMO networks with network…

信息论 · 计算机科学 2023-12-22 S. Mashdour , A. Schmeink , R. C. de Lamare , J. P. Sales

In next-generation vehicular environments, precise localization is crucial for facilitating advanced applications such as autonomous driving. As automation levels escalate, the demand rises for enhanced accuracy, reliability, energy…

信号处理 · 电气工程与系统科学 2024-04-23 Marina Lotti , Nicolò Decarli , Gianni Pasolini , Davide Dardari

Resource-constrained robots often suffer from energy inefficiencies, underutilized computational abilities due to inadequate task allocation, and a lack of robustness in dynamic environments, all of which strongly affect their performance.…

机器人学 · 计算机科学 2023-10-02 Dipam Patel , Phu Pham , Kshitij Tiwari , Aniket Bera

Non-orthogonal multiple access (NOMA) technique is important for achieving a high data rate in next-generation wireless communications. A key challenge to fully utilizing the effectiveness of the NOMA technique is the optimization of the…

信息论 · 计算机科学 2024-10-28 Teppei Otsuka , Aohan Li , Hiroki Takesue , Kensuke Inaba , Kazuyuki Aihara , Mikio Hasegawa

New-generation wireless networks are designed to support a wide range of services with diverse key performance indicators (KPIs) requirements. A fundamental component of such networks, and a pivotal factor to the fulfillment of the target…

网络与互联网体系结构 · 计算机科学 2021-09-24 Sharda Tripathi , Corrado Puligheddu , Carla Fabiana Chiasserini , Federico Mungari

Next-generation networks utilize the Open Radio Access Network (O-RAN) architecture to enable dynamic resource management, facilitated by the RAN Intelligent Controller (RIC). While deep reinforcement learning (DRL) models show promise in…

人工智能 · 计算机科学 2025-11-20 Fatemeh Lotfi , Hossein Rajoli , Fatemeh Afghah

The challenging applications envisioned for the future Internet of Things networks are making it urgent to develop fast and scalable resource allocation algorithms able to meet the stringent reliability and latency constraints typical of…

网络与互联网体系结构 · 计算机科学 2025-03-03 Federico Librino , Paolo Santi

The anticipated increase in the count of IoT devices in the coming years motivates the development of efficient algorithms that can help in their effective management while keeping the power consumption low. In this paper, we propose an…

网络与互联网体系结构 · 计算机科学 2021-11-02 Inaam Ilahi , Muhammad Usama , Muhammad Omer Farooq , Muhammad Umar Janjua , Junaid Qadir

This paper aims to realize a new multiple access technique based on recently proposed millimeter-wave reconfigurable antenna architectures. To this end, first we show that integration of the existing reconfigurable antenna systems with the…

信息论 · 计算机科学 2018-03-28 Mojtaba Ahmadi Almasi , Hani Mehrpouyan , David Matolak , Cunhua Pan , Maged Elkashlan

The successful deployment of LTE heterogeneous networks (HetNets) depends crucially on the inter-cell interference (ICI) management. Among ICI coordination schemes, fractional frequency reuse (FFR) is considered as an efficient technique…

信息论 · 计算机科学 2014-08-15 Quan Kuang

Multiple access is the cornerstone technology for each generation of wireless cellular networks and resource allocation design plays a crucial role in multiple access. In this paper, we present a comprehensive tutorial overview for junior…

信息论 · 计算机科学 2024-07-04 Zhiqiang Wei , Dongfang Xu , Shuangyang Li , Shenghui Song , Derrick Wing Kwan Ng , Giuseppe Caire

In relay-enabled cellular networks, the intertwined nature of network agents calls for complex schemes to allocate wireless resources. Resources need to be distributed among mobile users while considering how relay resources are allocated,…

网络与互联网体系结构 · 计算机科学 2024-02-06 Edgar Arribas , Vicent Cholvi , Vincenzo Mancuso