Density-aware mobile networks: Opportunities and challenges

Date

2020-07-05

Author

Mollahasani, Shahram
Eroğlu, Alperen
Demirkol, Ilker
Onur, Ertan

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

222
views

0
downloads

We experience a major paradigm shift in mobile networks. The infrastructure of cellular networks is becoming mobile since it is being densified also by using mobile and nomadic small cells to increase coverage and capacity. Furthermore, the innovative approaches such as green operation through sleep scheduling, user-controlled small cells, and dynamic end-to-end slicing will make the network topology and available resources highly dynamic. Therefore, the density of dynamic networks may vary in time and space from sparse to dense or vice versa. This paper advocates that on density-awareness is critical for dynamic mobile networks. Mobile cells, while bringing many benefits, introduce many unconventional challenges that we present in this paper. Novel techniques are needed for adapting network functions, communication protocols, and their parameters to the network density. Especially when cells on wheels or wings are considered, static and man-made configurations will waste valuable resources such as spectrum or energy if the density is not considered as an optimization parameter. In this paper, we evaluate the dynamicity of nomadic cells in density-aware mobile networks in a comprehensive and articulable way. The main challenges we may face by employing dynamic networks and how we can tackle these problems by using a density-oriented approach are discussed in detail. As a key concern in dynamic mobile networks, we treat the density of base stations, which is an indispensable performance parameter. For the applicability of such a parameter we present several potential density estimators. We epochally discuss the impact of density on coverage, interference, mobility management, scalability, capacity, caching, routing protocols, and energy consumption. Our findings illustrate that mobile cells bring more opportunities in addition to some challenges which can be solved, such as adapting mobile networks to base station density.

Subject Keywords

Base station density, Density-adaptive protocols, Cellular networks, Nomadic cells, Density-aware mobile networks

URI

https://hdl.handle.net/11511/32048

Journal

COMPUTER NETWORKS

DOI

https://doi.org/10.1016/j.comnet.2020.107271

Collections

Graduate School of Natural and Applied Sciences, Article

Suggestions

OpenMETU
Core

Network density estimators and density-aware wireless networks Eroğlu, Alperen; Onur, Ertan; Department of Computer Engineering (2020-11) New network architectures and communication technologies continue to emerge to meet rapidly increasing and changing user demands requiring continuous connectivity and high data rate transmissions. These ubiquitous infrastructures result in a paradigm shift in mobile communications with the advent of mobile robots equipped with sensors, unmanned aerial vehicles, and mobile small-cells, which makes the future networks highly dynamic. This dynamism poses unpredictable variations in the network density causing ...
Wireless Communication Aspects in the Internet of Things: An Overview ULUŞAR, ÜMİT DENİZ; Celik, Gurkan; Al-Turjman, Fadi (2017-10-12) Recent advances in technology propelled the development of resource constrained tiny devices and the concept of Internet of Things (IoT). Potential applications spanning various fields of science from environmental to medical have been emerged. Different architectures, routing protocols, performance issues and goals have been suggested. In this work, we review fundamental concepts, recent developments and critical design factors under IoT-specific constraints and objectives such as energy efficiency and env...
Density-aware cell zooming YAMAN, Okan; Eroğlu, Alperen; Onur, Ertan (2018-02-22) Ultra-dense deployments and mobile cells significantly change cellular networking paradigm. Infrastructure and topology of cellular networks become dynamic as opposed to legacy systems where the infrastructure is assumed to be stationary. As topology morphs, base station or user density of networks also change impacting the performance in terms of resource utilization and quality of service. To increase network capacity, preserve coverage and conserve energy, network density should be considered in communic...
Joint Virtual Machine Embedding and Wireless Data Center Topology Management Bütün, Beyza; Onur, Ertan; Department of Computer Engineering (2022-5-10) With emerging technologies such as the Internet of Things and 5G, generated data grows enormously. Hence, Data Center Networks (DCNs) have an important duty to store and process a significant amount of data, which makes them a critical component of the network. To meet the massive amount of traffic demands, wired DCNs need to deploy large numbers of servers and power-hungry switches, and huge lengths of wires. An enormous increase in the usage of cables causes high cabling complexity and cost while deployin...
Data Delivery in Wireless Multimedia Sensor Networks: Challenging and Defying in the IoT Era Al-Turjman, Fadi; Radwan, Ayman (2017-10-01) The vision of wireless multimedia sensor networks (WMSNs) nowadays is to afford real-time multimedia applications using the pervasive wireless sensors around us. This necessitates strict QoS conditions, which have led to new emerging challenges in terms of data delivery in the Internet of Things era. Accordingly, multipath routing protocols with multi-constraints are recommended in WMSNs. In this article, a comprehensive overview of both best effort and real-time multipath routing protocols for WMSNs is per...

Citation Formats

S. Mollahasani, A. Eroğlu, I. Demirkol, and E. Onur, “Density-aware mobile networks: Opportunities and challenges,” COMPUTER NETWORKS, pp. 0–0, 2020, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/32048.