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Heterogeneous cellular networks (HCNs) with millimeter wave (mm-wave) communications are considered as a promising technology for the fifth generation mobile networks. Mm-wave has the potential to provide multiple gigabit data rate due to…

Networking and Internet Architecture · Computer Science 2019-03-07 Yali Chen , Bo Ai , Yong Niu , Ruisi He , Zhangdui Zhong , Zhu Han

In heterogeneous networks (HetNets), load balancing among different tiers can be effectively achieved by a biased user association scheme with which each user chooses to associate with one base station (BS) based on the biased received…

Networking and Internet Architecture · Computer Science 2017-01-05 Fancheng Kong , Xinghua Sun , Victor C. M. Leung , Hongbo Zhu

In this paper, a new mathematical framework to the analysis of millimeter wave cellular networks is introduced. Its peculiarity lies in considering realistic path-loss and blockage models, which are derived from experimental data recently…

Information Theory · Computer Science 2016-11-17 Marco Di Renzo

In millimeter wave (mmWave) communication systems, narrow beam operations overcome severe channel attenuations, reduce multiuser interference, and thus introduce the new concept of noise-limited mmWave wireless networks. The regime of the…

Information Theory · Computer Science 2015-10-02 Hossein Shokri-Ghadikolaei , Carlo Fischione

Millimetre-wave (mmWave) technology is a promising candidate for meeting the intensifying demand for ultra fast wireless connectivity, especially in high-end enterprise networks. Very narrow beam forming is mandatory to mitigate the severe…

Networking and Internet Architecture · Computer Science 2018-02-02 Nicolo Facchi , Francesco Gringoli , Paul Patras

To solve the problem that the low capacity in hot-spots and coverage holes of conventional cellular networks, the base stations (BSs) having lower transmit power are deployed to form heterogeneous cellular networks (HetNets). However,…

Information Theory · Computer Science 2014-01-07 Tianqing Zhou , Yongming Huang , Luxi Yang

In this paper, the impact of imperfect beam alignment (IBA) on millimeter wave (mmWave) wireless power transfer (WPT) is investigated. We consider a mmWave WPT network, where the location of the energy transmitters follows a Poisson point…

Information Theory · Computer Science 2021-02-23 Man Wang , Chao Zhang , Xiaoming Chen , Suhua Tang

The millimeter-wave (mm-wave) bands enable very large antenna arrays that can generate narrow beams for beamforming and spatial multiplexing. However, directionality introduces beam misalignment and leads to reduced energy efficiency. Thus,…

Information Theory · Computer Science 2023-01-27 Manishika Rawat , Marco Giordani , Brejesh Lall , Abdelaali Chaoub , Michele Zorzi

This paper presents a novel stochastic geometry approach to the connectivity of milimeter wave (mmWave) networks with multi-hop relaying. The random positions and shapes of obstacles in the radio environment are modeled as a Boolean model,…

Information Theory · Computer Science 2014-12-23 Xingqin Lin , Jeffrey G. Andrews

Millimeter-wave (mmWave) communication opens up tens of giga-hertz (GHz) spectrum in the mmWave band for use by next-generation wireless systems, thereby solving the problem of spectrum scarcity. Maintaining connectivity stands out to be a…

Information Theory · Computer Science 2018-02-27 Kaifeng Han , Kaibin Huang , Ying Cui , Yueping Wu

The use of millimeter wave (mmWave) spectrum for commercial wireless communications is expected to offer data rates in the order of Gigabits-per-second, thus able to support future applications such as Vehicle-to-Vehicle or…

Signal Processing · Electrical Eng. & Systems 2020-02-20 Anastasios Dimas , Dionysios S. Kalogerias , Athina P. Petropulu

We propose a novel analytical framework for evaluating the coverage performance of a millimeter wave (mmWave) cellular network where idle user equipments (UEs) act as relays. In this network, the base station (BS) adopts either the direct…

Information Theory · Computer Science 2019-12-30 Simin Xu , Nan Yang , Biao He , Hamid Jafarkhani

Caching at base stations (BSs) is a promising way to offload traffic and eliminate backhaul bottleneck in heterogeneous networks (HetNets). In this paper, we investigate the optimal content placement maximizing the successful offloading…

Information Theory · Computer Science 2016-04-13 Dong Liu , Chenyang Yang

The potential of the millimeter wave (mmWave) band in meeting the ever growing demand for high data rate and capacity in emerging fifth generation (5G) wireless networks is well-established. Since mmWave systems are expected to use highly…

Signal Processing · Electrical Eng. & Systems 2017-10-13 Solmaz Niknam , Balasubramaniam Natarajan , Hani Mehrpouyan

We study the problem of joint load balancing and interference mitigation in heterogeneous networks (HetNets) in which massive multiple-input multiple-output (MIMO) macro cell base station (BS) equipped with a large number of antennas,…

Networking and Internet Architecture · Computer Science 2017-07-11 Trung Kien Vu , Mehdi Bennis , Sumudu Samarakoon , Mérouane Debbah , Matti Latva-aho

In this paper we study the maximum throughput achievable with optimal scheduling in multi-hop networks with highly directive antenna arrays capable of Space Division Multiplexing (SDM) at the transmitter and Space Division Multiple Access…

Information Theory · Computer Science 2019-01-28 Felipe Gómez-Cuba , Michele Zorzi

In this work, we explore the potential benefits of deploying unmanned aerial vehicles (UAVs) as aerial base stations (ABSs) with sub-6GHz band and small cells terrestrial base stations (TBSs) with millimeter wave (mmWave) band in a hybrid…

Information Theory · Computer Science 2021-02-10 Cunzhuo Zhao , Yuanwei Liu , Yunlong Cai , Minjian Zhao , Zhiguo Ding

In this paper, we address the problem of three dimensional beamforming in millimeter wave (mmWave) wireless networks. In particular, we study the impact of base station (BS) antenna tilt angle optimization on the energy efficiency (EE) of…

Signal Processing · Electrical Eng. & Systems 2018-12-05 Mahdi Baianifar

Fifth generation (5G) and beyond communication systems open the door to millimeter Wave (mmWave) frequency bands to leverage the extremely large operating bandwidths and deliver unprecedented network capacity. These frequency bands are…

Networking and Internet Architecture · Computer Science 2022-02-25 Roberto Flamini , Danilo De Donno , Jonathan Gambini , Francesco Giuppi , Christian Mazzucco , Angelo Milani , Laura Resteghini

Meta distribution is a fine-grained unified performance metric that enables us to evaluate the {reliability and latency} of next generation wireless networks, in addition to the conventional coverage probability. In this paper, using…

Signal Processing · Electrical Eng. & Systems 2019-12-10 Hazem Ibrahim , Hina Tabassum , Uyen T. Nguyen