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Despite coverage enhancement in rural areas is one of the main requirements in next generations of wireless networks (i.e., 5G and 6G), the low expected profit prevents telecommunication providers from investing in such sparsely populated…

Networking and Internet Architecture · Computer Science 2021-11-23 Maurilio Matracia , Mustafa A. Kishk , Mohamed-Slim Alouini

In this paper, we analyze the downlink coverage probability and rate of an aerial user in vertical HetNets (VHetNets) comprising aerial base stations (aerial-BSs) and terrestrial-BSs. The locations of terrestrial-BSs are modeled as an…

Signal Processing · Electrical Eng. & Systems 2020-09-11 Nesrine Cherif , Mohamed Alzenad , Halim Yanikomeroglu , Abbas Yongacoglu

For reliable and efficient communications of aerial platforms, such as unmanned aerial vehicles (UAVs), the cellular network is envisioned to provide connectivity for the aerial and ground user equipment (GUE) simultaneously, which brings…

Information Theory · Computer Science 2022-02-15 Zhuangzhuang Cui , Ke Guan , İsmail Güvenç , Claude Oestges , Zhangdui Zhong

In practice, wireless networks are deployed over finite domains, the level of mobility is different at different locations, and user mobility is correlated over time. All these features have an impact on the temporal properties of…

Networking and Internet Architecture · Computer Science 2020-09-01 Konstantinos Koufos , Carl P. Dettmann

Enabling the integration of aerial mobile users into existing cellular networks would make possible a number of promising applications. However, current cellular networks have not been designed to serve aerial users, and hence an…

Networking and Internet Architecture · Computer Science 2018-02-27 Mohammad Mahdi Azari , Fernando Rosas , Alessandro Chiumento , Sofie Pollin

We introduce a framework to study slotted Aloha with cooperative base stations. Assuming a geographic-proximity communication model, we propose several decoding algorithmswith different degrees of base stations' cooperation…

Information Theory · Computer Science 2015-01-30 Dusan Jakovetic , Dragana Bajovic , Dejan Vukobratovic , Vladimir Crnojevic

A recent approach in modeling and analysis of the supply and demand in heterogeneous wireless cellular networks has been the use of two independent Poisson point processes (PPPs) for the locations of base stations (BSs) and user equipments…

Networking and Internet Architecture · Computer Science 2015-05-04 Meisam Mirahsan , Rainer Schoenen , Halim Yanikomeroglu

In multi-user wireless packet networks interference, typically modeled as packet collision, is the throughput bottleneck. Users become aware of the interference pattern via feedback and use this information for contention resolution and for…

Information Theory · Computer Science 2018-07-24 Alireza Vahid , Robert Calderbank

Multi-tier cellular networks are considered as an effective solution to enhance the coverage and data rate offered by cellular systems. In a multi-tier network, high power base stations (BSs) such as macro BSs are overlaid by lower power…

Networking and Internet Architecture · Computer Science 2014-09-30 Ahmed Hamdi Sakr , Ekram Hossain

The performance of wireless networks is fundamentally limited by the aggregate interference, which depends on the spatial distributions of the interferers, channel conditions, and user traffic patterns (or queueing dynamics). These factors…

Networking and Internet Architecture · Computer Science 2021-08-13 Xiao Lu , Mohammad Salehi , Martin Haenggi , Ekram Hossain , and Hai Jiang

Network densification has always been an important factor to cope with the ever increasing capacity demand. Deploying more base stations (BSs) improves the spatial frequency utilization, which increases the network capacity. However, such…

Information Theory · Computer Science 2016-07-13 Rabe Arshad , Hesham ElSawy , Sameh Sorour , Tareq Y. Al-Naffouri , Mohamed-Slim Alouini

This paper deals with the stochastic geometry-based characterization of the time-varying performance of a drone cellular network in which the initial locations of drone base stations (DBSs) are modeled as a Poisson point process (PPP) and…

Information Theory · Computer Science 2021-01-26 Morteza Banagar , Harpreet S. Dhillon

The problem of base station cooperation has recently been set within the framework of Stochastic Geometry. Existing works consider that a user dynamically chooses the set of stations that cooperate for his/her service. However, this…

Information Theory · Computer Science 2015-09-08 Anastasios Giovanidis , Luis David Alvarez Corrales , Laurent Decreusefond

Multi-cell cooperation (MCC) is an approach for mitigating inter-cell interference in dense cellular networks. Existing studies on MCC performance typically rely on either over-simplified Wyner-type models or complex system-level…

Information Theory · Computer Science 2012-12-07 Kaibin Huang , Jeffrey G. Andrews

This study investigates the spatial distribution of emergency alarm call events to identify spatial covariates associated with the events and discern hotspot regions for the events. The study is motivated by the problem of developing…

Applications · Statistics 2022-07-19 Fekadu L. Bayisa , Markus Ådahl , Patrik Rydén , Ottmar Cronie

In this paper we obtain the required spatial density of base stations (BSs) in a coordinated multi-point uplink cellular network to meet a chosen quality of service metric. Our model assumes cooperation amongst two BSs and the required…

Information Theory · Computer Science 2013-09-30 S. Alireza Banani , Raviraj S. Adve

Base station (BS) sleeping has emerged as a viable solution to enhance the overall network energy efficiency by inactivating the underutilized BSs. However, it affects the performance of users in sleeping cells depending on their BS…

Networking and Internet Architecture · Computer Science 2016-11-17 Hina Tabassum , Uzma Siddique , Ekram Hossain , Md. Jahangir Hossain

We analyze the uplink of coordinated multi-point (CoMP) networks in which cooperation can be amongst 2 or 3 base stations (BSs). We consider a 2D network of BSs on a regular hexagonal lattice wherein the cooperation tessellates the 2D plane…

Information Theory · Computer Science 2015-01-20 S. Alireza Banani , Raviraj S. Adve

Interference alignment promises that, in Gaussian interference channels, each link can support half of a degree of freedom (DoF) per pair of transmit-receive antennas. However, in general, this result requires to precode the data bearing…

Information Theory · Computer Science 2014-02-14 Vasilis Ntranos , Mohammad Ali Maddah-Ali , Giuseppe Caire

The point process of concurrent users is critical for the analysis of cellular networks, in particular for the uplink and for full-duplex communication. We analyze the properties of two popular models. For the first one, we provide an…

Information Theory · Computer Science 2016-11-28 Martin Haenggi