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In modern implementations of Cloud Radio Access Network (C-RAN), the fronthaul transport network will often be packet-based and it will have a multi-hop architecture built with general-purpose switches using network function virtualization…

Information Theory · Computer Science 2019-12-19 Seok-Hwan Park , Osvaldo Simeone , Shlomo Shamai

We consider multi-antenna base stations using orthogonal frequency-division multiple access (OFDMA) and space division multiple access (SDMA) techniques to serve single antenna users, where some of those users have minimum rate requirements…

Information Theory · Computer Science 2011-10-07 Diego Perea-Vega , André Girard , Jean-François Frigon

Over-the-air computation (AirComp) has recently been recognized as a promising scheme for a fusion center to achieve fast distributed data aggregation in wireless networks via exploiting the superposition property of multiple-access…

Signal Processing · Electrical Eng. & Systems 2021-06-23 Lukuan Xing , Yong Zhou , Yuanming Shi

Cloud radio access network (C-RAN) has emerged as a potential candidate of the next generation access network technology to address the increasing mobile traffic, while mobile cloud computing (MCC) offers a prospective solution to the…

Networking and Internet Architecture · Computer Science 2016-11-17 Kezhi Wang , Kun Yang , Chathura Sarathchandra Magurawalage

The emerging Cloud-RAN architecture within the fifth generation (5G) of wireless networks plays a vital role in enabling higher flexibility and granularity. On the other hand, Cloud-RAN architecture introduces an additional link between the…

Networking and Internet Architecture · Computer Science 2019-05-01 Ghizlane Mountaser , Maliheh Mahlouji , Toktam Mahmoodi

Cloud radio access network (C-RAN) has become a promising network architecture to support the massive data traffic in the next generation cellular networks. In a C-RAN, a massive number of low-cost remote antenna ports (RAPs) are connected…

Information Theory · Computer Science 2018-02-27 Zhiyang Liu , Hong Wu , Yingxin Zhao , Shuxue Ding

This paper considers the uplink of a cloud radio access network (C-RAN) comprised of several multi-antenna remote radio units (RUs) which compress the signals that they receive from multiple mobile users (MUs) and forward them to a CU via…

Information Theory · Computer Science 2018-08-16 Marzieh Najafi , Vahid Jamali , Derrick Wing Kwan Ng , Robert Schober

Low latency communication is one of the fundamental requirements for 5G wireless networks and beyond. In this paper, a novel approach for joint caching, user scheduling and resource allocation is proposed for minimizing the queuing latency…

Networking and Internet Architecture · Computer Science 2023-09-22 Tamoor-ul-Hassan Syed , Samarakoon Sumudu , Bennis Mehdi , Matti Latva-aho

In this correspondence, the comprehensive problem of joint power, rate, and subcarrier allocation have been investigated for enhancing the spectral efficiency of multi-user orthogonal frequency-division multiple access (OFDMA) cognitive…

Information Theory · Computer Science 2017-09-14 H. Saki , M. Shikh Bahaei

In cloud radio access networks (C-RANs), the baseband units and radio units of base stations are separated, which requires high-capacity fronthaul links connecting both parts. In this paper, we consider the delay-aware fronthaul allocation…

Information Theory · Computer Science 2015-03-02 Wei Wang , Vincent K. N. Lau , Mugen Peng

Providing femto-access points (FAPs) with computational capabilities will allow (either total or partial) offloading of highly demanding applications from smart-phones to the so called femto-cloud. Such offloading promises to be beneficial…

Information Theory · Computer Science 2015-11-23 Olga Muñoz , Antonio Pascual-Iserte , Josep Vidal

We consider the analysis and design of distributed wireless networks wherein remote radio heads (RRHs) coordinate transmissions to serve multiple users on the same resource block (RB). Specifically, we analyze two possible multiple-input…

Information Theory · Computer Science 2021-11-19 Hussein A. Ammar , Raviraj Adve , Shahram Shahbazpanahi , Gary Boudreau

This paper addresses the four enabling technologies, namely multi-user sparse code multiple access (SCMA), content caching, energy harvesting, and physical layer security for proposing an energy and spectral efficient resource allocation…

Information Theory · Computer Science 2018-08-15 Mohammad R. Abedi , Nader Mokari , Mohammad R. Javan , Eduard. A. Jorswieck

Ultra-low latency is the most important requirement of the Tactile Internet (TI), which is one of the proposed services for the next-generation wireless network (NGWN), e.g., fifth generation (5G) network. In this paper, a new queuing model…

Networking and Internet Architecture · Computer Science 2019-11-11 Narges Gholipoor , Saeedeh Parsaeefard , Mohammad Reza Javan , Nader Mokari , Hamid Saeedi , Hossein Pishro-Nik

This work proposes an integrated approach for optimising Federated Learning (FL) communication in dynamic and heterogeneous network environments. Leveraging the modular flexibility of the Open Radio Access Network (ORAN) architecture and…

Systems and Control · Electrical Eng. & Systems 2025-05-27 Abdelaziz Salama , Mohammed M. H. Qazzaz , Syed Danial Ali Shah , Maryam Hafeez , Syed Ali Zaidi

Employing massively distributed antennas brings radio access points (RAPs) closer to users, thus enables aggressive spectrum reuse that can bridge gaps between the scarce spectrum resource and extremely high connection densities in future…

Signal Processing · Electrical Eng. & Systems 2020-08-19 Lisu Yu , Jingxian Wu , Andong Zhou , Erik G. Larsson , Pingzhi Fan

Cache-assisted ultra-dense mobile edge computing (MEC) networks are a promising solution for meeting the increasing demands of numerous Internet-of-Things mobile devices (IMDs). To address the complex interferences caused by small base…

Information Theory · Computer Science 2024-10-22 Tianqing Zhou , Bobo Wang , Dong Qin , Xuefang Nie , Nan Jiang , Chunguo Li

Due to the high costs of optical fiber deployment in Low-Density and Rural Areas (LDRAs), 5G Fixed Wireless Access (5G FWA) recently emerged as an affordable solution. A widely adopted deployment scenario of 5G FWA includes edge cloud that…

Networking and Internet Architecture · Computer Science 2024-11-11 Anselme Ndikumana , Kim Khoa Nguyen , Mohamed Cheriet

In this paper, we study resource allocation for downlink orthogonal frequency division multiple access (OFDMA) systems with the objective to enable ultra-reliable low latency communication (URLLC). To meet the stringent delay requirements…

Information Theory · Computer Science 2019-01-18 Walid R. Ghanem , Vahid Jamali , Yan Sun , Robert Schober

Cloud Radio Access Network (C-RAN) refers to the virtualization of base station functionalities by means of cloud computing. This results in a novel cellular architecture in which low-cost wireless access points, known as radio units (RUs)…

Information Theory · Computer Science 2015-12-25 Osvaldo Simeone , Andreas Maeder , Mugen Peng , Onur Sahin , Wei Yu