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Motivated by heterogeneous networks (HetNets) design in improving coverage and by millimeter-wave (mmWave) transmission offering an abundance of extra spectrum, we present a general analytical framework shedding light to the downlink of…

Information Theory · Computer Science 2019-03-28 Anastasios Papazafeiropoulos , Tharmalingam Ratnarajah , Pandelis Kourtessis , Symeon Chatzinotas

This letter investigates the performance of content caching in a heterogeneous cellular network (HetNet) consisting of fluid antenna system (FAS)-equipped mobile users (MUs) and millimeter-wave (mm-wave) single-antenna small base stations…

Information Theory · Computer Science 2024-03-27 Farshad Rostami Ghadi , Kai-Kit Wong , Kin-Fai Tong , Yangyang Zhang

A significant burden on wireless networks is brought by the uploading of user-generated contents to the Internet by means of applications such as the social media. To cope with this mobile data tsunami, we develop a novel MIMO network…

Information Theory · Computer Science 2018-11-14 Anastasios Papazafeiropoulos , Tharmalingam Ratnarajah

Heterogeneous Networks (HetNets) are known to enhance the bandwidth efficiency and throughput of wireless networks by more effectively utilizing the network resources. However, the higher density of users and access points in HetNets…

Networking and Internet Architecture · Computer Science 2016-11-15 Hani Mehrpouyan , Michail Matthaiou , Rui Wang , George K. Karagiannidis , Yingbo Hua

The next generations of mobile networks will be deployed as ultra-dense networks, to match the demand for increased capacity and the challenges that communications in the higher portion of the spectrum (i.e., the mmWave band) introduce.…

Networking and Internet Architecture · Computer Science 2022-01-25 Matteo Pagin , Tommaso Zugno , Michele Polese , Michele Zorzi

Picocellular architectures are essential for providing the spatial reuse required to satisfy the ever-increasing demand for mobile data. A key deployment challenge is to provide backhaul connections with sufficiently high data rate.…

Signal Processing · Electrical Eng. & Systems 2018-09-21 Maryam Eslami Rasekh , Dongning Guo , Upamanyu Madhow

The problem of joint downlink cell association (CA) and wireless backhaul bandwidth allocation (WBBA) in two-tier cellular heterogeneous networks (HetNets) is considered. Large-scale antenna array is implemented at the macro base station…

Networking and Internet Architecture · Computer Science 2016-11-18 Ning Wang , Ekram Hossain , Vijay K. Bhargava

The widespread application of wireless services and dense devices access have triggered huge energy consumption. Because of the environmental and financial considerations, energy-efficient design in wireless networks becomes an inevitable…

Information Theory · Computer Science 2017-10-10 Haijun Zhang , Hao Liu , Julian Cheng , Victor C. M. Leung

Millimeter-wave (mmWave) communication is considered as an indispensable technique for the next-generation backhaul/fronthaul network thanks to its large transmission bandwidth. Especially for heterogeneous network (HetNet), the mmWave…

Information Theory · Computer Science 2018-09-11 Yiwei Sun , Zhen Gao , Hua Wang , Di Wu

We consider a network model where small base stations (SBSs) have caching capabilities as a means to alleviate the backhaul load and satisfy users' demand. The SBSs are stochastically distributed over the plane according to a Poisson point…

Information Theory · Computer Science 2015-01-08 Ejder Baştuğ , Mehdi Bennis , Marios Kountouris , Mérouane Debbah

Integrated access and backhaul (IAB) is one of the promising techniques for 5G networks and beyond (6G), in which the same node/hardware is used to provide both backhaul and cellular services in a multi-hop fashion. Due to the sensitivity…

Networking and Internet Architecture · Computer Science 2022-10-12 Charitha Madapatha , Behrooz Makki , Hao Guo , Tommy Svensson

Today, a large portion of the mobile data traffic is consumed behind the shielding walls of buildings or in the Faraday cage of trains. This renders cellular network coverage from outdoor cell sites difficult. Indoor small cells and…

Networking and Internet Architecture · Computer Science 2021-05-17 Adrian Schumacher , Ruben Merz , Andreas Burg

millimeter wave (mmWave) and sub-terahertz (THz) communications have the potential of increasing mobile network throughput drastically. However, the challenging propagation conditions experienced at mmWave and beyond frequencies can…

Networking and Internet Architecture · Computer Science 2023-09-13 Amir Ashtari Gargari , Matteo Pagin , Andrea Ortiz , Nairy Moghadas Gholian , Michele Polese , Michele Zorzi

Caching at the edge is a promising technique to cope with the increasing data demand in wireless networks. This paper analyzes the performance of cellular networks consisting of a tier macro-cell wireless backhaul nodes overlaid with a tier…

Information Theory · Computer Science 2017-05-25 Italo Atzeni , Marco Maso , Imène Ghamnia , Ejder Baştuğ , Mérouane Debbah

The design of distributed mechanisms for interference management is one of the key challenges in emerging wireless small cell networks whose backhaul is capacity limited and heterogeneous (wired, wireless and a mix thereof). In this paper,…

Networking and Internet Architecture · Computer Science 2014-01-14 Sumudu Samarakoon , Mehdi Bennis , Walid Saad , Matti Latva-aho

Wide area networks for surveying applications, such as seismic acquisition, have been witnessing a significant increase in node density and area, where large amounts of data have to be transferred in real-time. While cables can meet these…

Signal Processing · Electrical Eng. & Systems 2021-05-24 Varun Amar Reddy , Gordon L. Stüber , Suhail Al-Dharrab , Wessam Mesbah , Ali Hussein Muqaibel

Wireless backhaul allows densification of mobile networks without incurring additional fiber deployment cost. This, in turn, leads to high spatial reuse, which is a significant tool to meet increasing wireless demand in 5G networks.…

Information Theory · Computer Science 2018-04-03 Muhammad Nazmul Islam , Navid Abedini , Georg Hampel , Sundar Subramanian , Junyi Li

The time domain inter-cell interference coordination techniques specified in LTE Rel. 10 standard improves the throughput of picocell-edge users by protecting them from macrocell interference. On the other hand, it also degrades the…

Information Theory · Computer Science 2014-04-01 Arvind Merwaday , Sayandev Mukherjee , Ismail Guvenc

In this paper, we propose a novel and effective approach to optimizing the load balancing in a millimeter wave (mmWave) cellular heterogeneous network (HetNet) with a macro-tier and a micro-tier. The unique characteristics of mmWave…

Information Theory · Computer Science 2017-11-17 Simin Xu , Nan Yang , Shihao Yan

Limited backhaul bandwidth and blockage effects are two main factors limiting the practical deployment of millimeter wave (mmWave) networks. To tackle these issues, we study the feasibility of relaying as well as caching in mmWave networks.…

Networking and Internet Architecture · Computer Science 2020-08-19 Zhuojia Gu , Hancheng Lu , Ming Zhang , Haizhou Sun , Chang Wen Chen