An Algorithm for Multi Service Continuity in Multi Radio Access Cellular Networks

2010 ◽  
Author(s):  
Belal Abuhaija ◽  
Khalid Al-Begain
Keyword(s):  
Cellular Networks ◽  
Radio Access ◽  
Service Continuity

scholarly journals An Efficient Radio Access Resource Management Scheme Based on Priority Strategy in Dense mmWave Cellular Networks

2020 ◽  
Vol 2020 ◽  
pp. 1-19
Author(s):  
Jinsong Gui ◽  
Jianglin Liu
Keyword(s):  
Resource Allocation ◽  
Energy Efficiency ◽  
Resource Management ◽  
Cellular Networks ◽  
Resource Allocation Algorithm ◽  
Allocation Algorithm ◽  
Network Expansion ◽  
Radio Access ◽  
Directional Transmission ◽  
Access Resource

In millimeter wave (mmWave) communication systems, beamforming-enabled directional transmission and network densification are usually used to overcome severe signal path loss problem and improve signal coverage quality. The combination of directional transmission and network densification poses a challenge to radio access resource management. The existing work presented an effective solution for dense mmWave wireless local area networks (WLANs). However, this scheme cannot adapt to network expansion when it is applied directly to dense mmWave cellular networks. In addition, there is still room for improvement in terms of energy efficiency and throughput. Therefore, we firstly propose an efficient hierarchical beamforming training (BFT) mechanism to establish directional links, which allows all the small cell base stations (SBSs) to participate in the merging of training frames to adapt to network expansion. Then, we design a BFT information-aided radio access resource allocation algorithm to improve the downlink energy efficiency of the entire mmWave cellular network by reasonably selecting beam directions and optimizing transmission powers and beam widths. Simulation results show that the proposed hierarchical BFT mechanism has the smaller overhead of BFT than the existing BFT mechanism, and the proposed BFT information-aided radio access resource allocation algorithm outperforms the existing corresponding algorithm in terms of average energy efficiency and throughput per link.

scholarly journals A Geometric Method for Estimating the Nominal Cell Range in Cellular Networks

2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
A. J. García ◽  
V. Buenestado ◽  
M. Toril ◽  
S. Luna-Ramírez ◽  
J. M. Ruiz
Keyword(s):  
Cellular Networks ◽  
Voronoi Tessellation ◽  
Geometrical Method ◽  
Radio Access ◽  
New Radio ◽  
Cell Range ◽  
A Cell ◽  
Traditional Approaches ◽  
Physical Layout ◽  
Key Parameter

In cellular networks, cell range is a key parameter for network planning and optimization. With the advent of new radio access technologies, it is not easy to obtain a good estimate of the nominal cell range on a cell-by-cell basis due to the complexity of physical layout in a real network. In this work, a novel geometrical method for estimating the cell range based on Voronoi tessellation is presented. The inputs of the method are site locations, antenna azimuths, and antenna horizontal beamwidths. The method is tested with a real dataset taken from a live LTE network. During assessment, the proposed method is compared with traditional approaches of estimating cell range. Results show that the proposed method improves the accuracy of previous approaches, while still maintaining a low computational complexity.

scholarly journals Development Communication Programs and Communications Security Capability by Improving the Cellular Networks Radio Layer

2020 ◽  
Vol 55 (3) ◽  
Author(s):  
Sura Khalil Ibrahim ◽  
Zainab Taha Jebur
Keyword(s):  
Cellular Networks ◽  
Mobile Networks ◽  
Access Network ◽  
Mobile Security ◽  
Security Requirements ◽  
Development Communication ◽  
Mobile Terminals ◽  
Radio Access ◽  
20Th Anniversary ◽  
Communication Programs

The GSM is celebrating its 20th anniversary this year. The number of GSM users is estimated at 80% of the world's population, or a total of five billion in over 200 countries. The advent of mobile terminals and the proliferation of their uses (including in sectors where they are used for communicating between machines) ensure compliance with robust security requirements. The topic of mobile security is vast as it includes radio access, network infrastructure, terminals, as well as the applications running on it. This article focuses on the first two themes. Since 2002, different independent projects have elicited interest in the security principles that were implemented in second and third generation mobile telephony networks. This presentation provides an overview of the objectives and concomitant impacts of these projects on the overall security of mobile networks. In addition to mentioning principles of security, the paper also identifies the challenges associated with geolocation.

scholarly journals Problems of constructing broadband radio access systems of mobile radio communication

2019 ◽  
Vol 2019 (2) ◽  
pp. 24-30
Author(s):  
Василий Типаков ◽  
Vasily Sergeevich Tipakov ◽  
Тимур Яковлев ◽  
Timur Aleksandrovich Yakovlev
Keyword(s):  
Cellular Networks ◽  
Mobile Networks ◽  
Mobile Communications ◽  
Current Trend ◽  
Mobile Radio ◽  
Base Stations ◽  
Radio Communication ◽  
Radio Access ◽  
Broadband Radio ◽  
Internal Network

The article is focused on the problem of degrading the signals of broadband 3G / 4G mobile radio access systems in places of subscribers clustering and in so-called “dead zones”. The analysis of the actual principles of building mobile networks has been carried out, the main disadvantages of the approaches to the development of cellular networks have been identified. The current trend of building macro cells in the urban environment has lost its effectiveness due to the increasing frequencies used; it has to be replaced by a fundamentally new way of planning mobile networks. A new principle of providing access to mobile communications “from inside to outside” is proposed, which takes into account the needs of a large number of subscribers in the premises. It is based on setting the maximum number of internal base stations fully meeting the needs of internal network users. Such a distinction will positively affect all subscribers and improve the experience from using the high-quality services of the mobile operators, which will result in increasing the economic performance

Energy Efficient Transmission in Cellular Networks

2013 ◽  
pp. 109-133
Author(s):  
Juejia Zhou ◽  
Mingju Li ◽  
Liu Liu ◽  
Xiaoming She ◽  
Lan Chen
Keyword(s):  
Energy Consumption ◽  
Cellular Networks ◽  
Energy Efficient ◽  
Cellular Network ◽  
Information And Communications Technology ◽  
Future Research ◽  
Main Role ◽  
Radio Access ◽  
The Status ◽  
Efficient Transmission

A cellular network is a kind of dedicated distributed network with wireless radio access, and nowadays, it is widely used in people’s lives. The statistics shows that currently there are 4 billion mobile subscribers in the world, and unquestionably, the cellular network has been playing the main role of energy consumption in ICT (Information and Communications Technology). This chapter discloses the status of energy consumption in the cellular network and introduces energy efficient transmission strategies for accessing a network of cellular networks, especially in cell selection and power control scopes. For future research perspectives, this chapter also introduces the roadmap of smart radio resource management for energy efficient transmission.

Sign in / Sign up

Export Citation Format

Share Document