Mobility Support Resource Management for Mobile Networks

Author(s):  
Mohammad Mahfuzul Islam ◽  
Manzur Murshed

Limitation of wireless resources is the main obstacle for meeting the widespread demands in the cellular network technology. The crisis of resources is further augmented when reservation is made for supporting the migrating users from the neighbouring cells. Many mobility support advanced technologies and mobile communications protocols have been developed to optimally utilize wireless resources. Some policies support the heterogeneous access technologies for multimedia services in mobile networks. Some other policies exploit the mobility information from the current and neighbouring cells to dynamically adjust the key components of resource management such as resource reservation, resource allocation, and call admission control policy to adapt quickly with network traffic changes. This chapter provides a comprehensive overview of various methods to explain the mechanisms for managing these key components of resource management for cellular networks.

2019 ◽  
pp. 6-11
Author(s):  
Kristina Guzhakovskaya ◽  
Yuriy Umnitsyn

The paper considers Global System for Mobile Communications, which plays the important role in contemporary society and carries new forms of dialog in the modern world. It is shown, that GSM-nets play two roles: firstly, they serve as communication tools for people who are in any point of world, and secondly, they can be used as tools for confidential data theft due to the old technology for telephone exchange setting, created as early as in the 1970s. Attacks using SS7 are often executed by hackers. After all, the attacker does not have to be close to the subscriber, and the attack can be made from anywhere on the planet. Therefore, to calculate the attacker is almost impossible, through this vulnerability can be hacked through almost any phone in the world. It will not be difficult to eavesdrop on conversations, intercept SMS, get access to the mobile Bank, social networks because of the vulnerability in the SS7 telephone infrastructure, through which service commands of cellular networks are transmitted. Due to the fact that the vulnerability with the Protocol SS7 is on the side of the operator, protection from such an attack is impossible. Until mobile operators are able to abandon this technology, this threat in the field of information security will remain relevant.


Author(s):  
Paramesh C. Upadhyay ◽  
Sudarshan Tiwari

Mobility is a natural phenomenon in cellular networks. The worldwide popularity of mobile communications and Internet has necessitated the merger of the two fast growing technologies to get their fullest advantages. The Internet protocol (IP) was designed for static hosts only. Therefore, in order to add mobility in Internet, the Internet protocol needs to be redefined. This paper is intended to present an overview of various mobility management schemes, available in literature, for IP-based mobile networks.


2021 ◽  
Author(s):  
Deniss Brodņevs

The Thesis is concerned with assessing the suitability of LTE (4G) cellular networks for the remote control of low-flying UAVs. To solve this problem, an approach to the analysis of the delay values in cellular networks has been developed, which makes it possible to estimate the delays of individual cells and overall cellular network. Requirements for delays in the UAV control channel were developed, conclusions were drawn about the suitability of the LTE network as a communication solution for the UAV remote control. A method for calculating the effect of parallel redundancy is proposed, and an experimental assessment of the possibility of using two existing solutions for parallel redundancy in LTE networks is carried out. In addition, a compact technical solution for analyzing the level of base station signals was demonstrated.


2019 ◽  
Vol 2019 (2) ◽  
pp. 24-30
Author(s):  
Василий Типаков ◽  
Vasily Sergeevich Tipakov ◽  
Тимур Яковлев ◽  
Timur Aleksandrovich Yakovlev

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


Author(s):  
Paramesh C. Upadhyay ◽  
Sudarshan Tiwari

Mobility is a natural phenomenon in cellular networks. The worldwide popularity of mobile communications and Internet has necessitated the merger of the two fast growing technologies to get their fullest advantages. The Internet protocol (IP) was designed for static hosts only. Therefore, in order to add mobility in Internet, the Internet protocol needs to be redefined. This paper is intended to present an overview of various mobility management schemes, available in literature, for IP-based mobile networks.


Author(s):  
Avinash Singh ◽  
Surya Pratap Singh ◽  
Arvind Kumar Maurya ◽  
Upendra Nath Tripathi

In wireless media, congestion is usual phenomenon that arises due abruptly raised subscribers demand to establish connections congruently in particular cell at mean real time. Generally, the congestion problem occurs in cellular network traffic and almost persists in every generation. Every mobile network operators is facing this problem every day and struggling to resolve this issue but not being success yet.  As more advance cellular devices are being in demand and its users are also being increasing which turns to demand larger bandwidth requirements from cellular subscriber. Presently for cellular network, both at infrastructures level and manual configuration, the network management strategy founds to be inefficient to resolve these issues effective way. While trying to resolve, at certain critical peak hours and occasions, situation gets worse. Since, every cellular operator are being facing strong criticism from both user and regulating authorities on this issue. An effort from subscriber’s end is to done only minor infrastructural changes to operate and maintain the network at low cost which found to ineffective and being failed to handle the communication demands of higher Quality of Service (QoS). One way of handling congestion would be through hardware amendment like sectorial design, cell partition, or some software enabled functions use to organize to automate the configuration, optimize and maintenance of cellular networks, But these changes involves heavy investment by subscriber which in turns to cost from user for its services. Concerning on this unresolved issue, our prime motive is to forward innovative effort work that could effectively and sustainable to manage the congestion for long duration. In this paper, we first review the various load sharing and balancing techniques those are used to resolve traffic congestion occurrences in mobile networks. And further  presents  an algorithm  design  that would helpful to develop  a  reliable,  flexible,  highly  efficient  load balancing and sharing system. The system based on proposed schema could manage the cell network resources with special emphasis techniques having suitable self optimization feature for future wireless cellular networks.


2019 ◽  
Vol 9 (4) ◽  
pp. 4504-4510
Author(s):  
N. C. Eli-Chukwu ◽  
J. M. Aloh ◽  
C. O. Ezeagwu

Mobile technology has made communication easier and faster. People communicate in a matter of picoseconds, with little or no inhibition, regardless of their distance or location. Mobile networks are rapidly expanding all over the world. The demand led to the evolution of different technologies to meet with traffic challenges. Challenges are still evident as the cellular network system faces dynamic and chaotic behavior that needs to be resolved intelligently without human intervention. The current paper presents the state of the art of artificial intelligence (AI) in enhancing the performance of cellular networks. This paper summarizes the AI concept and reviews its applications in cellular network design, operations, and optimization. A special focus is laid on the advantages and disadvantages of AI application and a holistic study of the challenges is undertaken in order to give new research directions.


2021 ◽  
Vol 22 (9) ◽  
pp. 4728
Author(s):  
Tanuza Das ◽  
Eun Joo Song ◽  
Eunice EunKyeong Kim

Ubiquitination and deubiquitination are protein post-translational modification processes that have been recognized as crucial mediators of many complex cellular networks, including maintaining ubiquitin homeostasis, controlling protein stability, and regulating several signaling pathways. Therefore, some of the enzymes involved in ubiquitination and deubiquitination, particularly E3 ligases and deubiquitinases, have attracted attention for drug discovery. Here, we review recent findings on USP15, one of the deubiquitinases, which regulates diverse signaling pathways by deubiquitinating vital target proteins. Even though several basic previous studies have uncovered the versatile roles of USP15 in different signaling networks, those have not yet been systematically and specifically reviewed, which can provide important information about possible disease markers and clinical applications. This review will provide a comprehensive overview of our current understanding of the regulatory mechanisms of USP15 on different signaling pathways for which dynamic reverse ubiquitination is a key regulator.


2014 ◽  
Vol 1 (3) ◽  
pp. 360-364 ◽  
Author(s):  
Niek Hijnen ◽  
Paul S. Clegg

Removing the continuous phase of a Pickering emulsion of partially miscible liquids by selective evaporation provides a one-step route to assembling colloidal particles into a cellular network.


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