scholarly journals Analysis of the Performance of Cellular Mobile Networks for the Remote-Control Systems of Unmanned Aerial Vehicles. Summary of the Doctoral Thesis

2021 ◽  
Author(s):  
Deniss Brodņevs
Keyword(s):  
Remote Control ◽  
Control Systems ◽  
Cellular Networks ◽  
Mobile Networks ◽  
Cellular Network ◽  
Base Station ◽  
Technical Solution ◽  
Lte Networks ◽  
Cellular Mobile ◽  
4G Cellular Networks

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.

scholarly journals YAICD: Yet Another IMSI Catcher Detector in GSM

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Parimah Ziayi ◽  
Seyed Mostafa Farmanbar ◽  
Mohsen Rezvani
Keyword(s):  
Mobile Devices ◽  
Cellular Networks ◽  
Mobile Networks ◽  
Experimental Results ◽  
Lte Networks ◽  
Backward Compatibility ◽  
Man In The Middle ◽  
Base Transceiver Station ◽  
Gsm Network

In GSM, the network is not authenticated which allows for man-in-the-middle (MITM) attacks. Attackers can track traffic and trace users of cellular networks by creating a rogue base transceiver station (BTS). Such a defect in addition to the need for backward compatibility of mobile networks makes all GSM, UMTS, and LTE networks susceptible to MITMs. These attacks are conducted using IMSI-Catchers (ICs). Most of the solutions proposed for detecting ICs in the literature are based on using specific mobile devices with root access. Also, they cannot identify ICs to which users are not connected. In this paper, we propose an approach called YAICD for detecting ICs in the GSM network. YAICD consists of a sensor that can be installed on Android mobile devices. It detects ICs by extracting 15 parameters from signals received from BTSs. We also established a lab-scale testbed to evaluate YAICD for various detection parameters and for comparing it against existing solutions in the literature. The experimental results show that YAICD not only successfully detects ICs using the parameters but also identifies ICs to which users are not yet connected to the network.

Cooperation Strategies for P2P Content Distribution in Cellular Mobile Networks

2011 ◽  
pp. 152-165
Author(s):  
Tobias Hoßfeld ◽  
Michael Duelli ◽  
Dirk Staehle ◽  
Phuoc Tran-Gia
Keyword(s):  
Cellular Networks ◽  
Mobile Networks ◽  
Content Distribution ◽  
Vertical Handover ◽  
Mobility Model ◽  
Computational Time ◽  
Heterogeneous Environments ◽  
Cellular Mobile ◽  
The Impact

The performance of P2P content distribution in cellular networks depends highly on the cooperation and coordination of heterogeneous and often selfish mobile users. The major challenges are the identification of problems arising specifically in cellular mobile networks and the development of new cooperation strategies to overcome these problems. In the coherent previous chapter, the authors focused on the selfishness of users in such heterogeneous environments. This discussion is now extended by emphasizing the impact of mobility and vertical handover between different wireless access technologies. An abstract mobility model is required to allow the performance evaluation in feasible computational time. As a result, the performance in today’s and future cellular networks is predicted and new approaches to master heterogeneity in cellular networks are derived.

scholarly journals Influence of various application types on the performance of LTE mobile networks

2020 ◽  
Vol 10 (5) ◽  
pp. 5420
Author(s):  
Adel Agamy ◽  
Ahmed M. Mohamed
Keyword(s):  
Cellular Networks ◽  
Mobile Networks ◽  
Queuing Theory ◽  
Performance Model ◽  
Mobile Internet ◽  
Queuing Model ◽  
Lte Networks ◽  
Wireless Device ◽  
Self Similar ◽  
Internet Networks

Modern mobile internet networks are becoming heavier and denser. Also it is not regularly planned, and becoming more heterogeneous. The explosive growth in the usage of smartphones poses numerous challenges for LTE cellular networks design and implementation. The performance of LTE networks with bursty and self-similar traffic has become a major challenge. Accurate modeling of the data generated by each connected wireless device is important for properly investigating the performance of LTE networks. This paper presents a mathematical model for LTE networks using queuing theory considering the influence of various application types. Using sporadic source traffic feeding to the queue of the evolved node B and with the exponential service time assumption, we construct a queuing model to estimate the performance of LTE networks. We use the performance model presented in this paper to study the influence of various application categories on the performance of LTE cellular networks. Also we validate our model with simulation using NS3 simulator with different scenarios.

Application of Thiessen Polygon Algorithm in Cellular Network Simulation System

2012 ◽  
Vol 532-533 ◽  
pp. 1851-1856 ◽  
Author(s):  
Liu Wei ◽  
Hai Yan Chen ◽  
Li Li ◽  
Hai Ming Fu ◽  
Li Wei
Keyword(s):  
Wireless Network ◽  
Cellular Network ◽  
Network Planning ◽  
Base Station ◽  
Service Area ◽  
Regular Hexagon ◽  
Positive Role ◽  
Thiessen Polygon ◽  
Practical Engineering ◽  
Cellular Mobile

Cellular mobile communication system divides the service area into several adjacent cells; each cell sets up a base station. In the traditional cellular representation, we always use regular hexagon to represent the cell. In the practical engineering applications and wireless network planning simulation systems, as the programming environment is complex and diverse, using the regular hexagon to represent the cellular network has limitation. This paper used Thiessen polygon and spatial analysis method to describe the cell service area with a polygon. This method intuitively displayed the relationship between the scope of service and its place with each other in space. For the Pre-construction and later optimization of wireless network planning it has a positive role.

scholarly journals Passive Method for Estimating Available Throughput for Autonomous Off-Peak Data Transfer

2020 ◽  
Vol 2020 ◽  
pp. 1-12 ◽  
Author(s):  
Kozo Satoda ◽  
Eiji Takahashi ◽  
Takeo Onishi ◽  
Takayuki Suzuki ◽  
Daisuke Ohta ◽  
...  
Keyword(s):  
Mobile Networks ◽  
Data Transfer ◽  
Peak Load ◽  
Base Station ◽  
Base Stations ◽  
Recent Analysis ◽  
Data Traffic ◽  
End User ◽  
Lte Networks

Large demands for mobile traffic subject base stations to frequent short-term and sharp peak loads. Recent analysis of data traffic on commercial mobile networks reported that the traffic peaks can be reduced by an average of 40% without compromising the quality of experience provided to the end user, if a peak load can be shifted for at most 20 s. To reduce peak traffic, we previously proposed a method for off-peak data transfer, with which user equipment (UE) autonomously delays receiving data, and a peak load on a base station can be shifted. In terms of off-peak transfer of data, a significant problem is determining how each UE estimates available throughput. In this paper we propose a method of passively estimating available throughput of each UE. We evaluated the effectiveness of the proposed method through experiments on experimental and commercial LTE networks. The results indicate that our method obtains more than a 0.7 correlation between actual available throughput and estimated throughput.

scholarly journals Survey on TYDER Based Algorithm for Radio Resource Allocation in 5G Heterogeneous Scenarios

2020 ◽  
Author(s):  
Premi A ◽  
Rajakumar S
Keyword(s):  
Resource Allocation ◽  
Cellular Networks ◽  
Mobile Networks ◽  
Base Station ◽  
Radio Resource ◽  
Machine To Machine ◽  
Generation Network ◽  
Radio Resources ◽  
Massive Number

The rapid growth of machine-to-machine communications in cellular networks poses the challenge of meeting the various Quality-of-Service requirements of massive number of machine to machine communications devices with limited radio resources. In this study, we discuss the minimum resource allocation problem for M2M communications through 5G and beyond the cellular networks. Then, in 5G mobile networks we propose a TYDER based algorithm for allocation the radio resource. The next-generation network environment, associated with heterogeneous performance, is expected to include the networks of diverse types. This paper introduces the network Traffic Type-based Differentiated Reputation (TYDER) solution, which differentiates the data delivery process according to its type.This approach however requires creativity in the reduction of hardware and cost decrease in the plan of little cell base station.

Mobility Support Resource Management for Mobile Networks

2011 ◽  
pp. 332-365 ◽  
Author(s):  
Mohammad Mahfuzul Islam ◽  
Manzur Murshed
Keyword(s):  
Resource Management ◽  
Cellular Networks ◽  
Mobile Networks ◽  
Mobile Communications ◽  
Cellular Network ◽  
Control Policy ◽  
Network Technology ◽  
Comprehensive Overview ◽  
Mobility Support ◽  
Support Resource

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.

OPTIMIZATION OF CHANNEL ALLOCATION ALGORITHM FOR HOT SPOT CELLS IN WIRELESS NETWORKS

2012 ◽  
Vol 3 (2) ◽  
pp. 238-241
Author(s):  
Kriti Saraswat ◽  
Ajit Kumar Shrivastava ◽  
Amit Saxena
Keyword(s):  
Wireless Networks ◽  
Cellular Networks ◽  
Hot Spots ◽  
Cellular Network ◽  
Channel Allocation ◽  
Hot Spot ◽  
Hybrid Approach ◽  
Base Station ◽  
Allocation Scheme ◽  
Versus System

Dense deployment of cellular networks is leading to scarcity of communication bandwidth or what we call as channel. If compared to its wired counterparts, wireless cellular network have limited number of channels available, which gives rise to problem of efficient channel allocation. Here, in this piece of work, the main objective is to put an effort to improve existing channel allocation scheme. In earlier existing hybrid allocation scheme, the base station notifies about the hot-spots to the Mobile Switching Centre (MSC) and if MSC has available channels in its central pool then it satisfies the request. Now, the novelty of this work starts where central pool gets exhausted and request of channels from base station (BS) still arrives and is served by returning the unused channels by different cells back to MSC on its request. The simulation of this approach is expounded and evaluated over OMNeT++ in a scenario with fixed channel allocation and hybrid approach by varying the proportion of dynamic channels to total number of channels available and the effectiveness is evaluated in terms of Call blocked and Call dropped versus System load.

scholarly journals Bandwidth Expansion Mode Under Component Carrier based scheme in LTE Networks

2019 ◽  
Vol 8 (3) ◽  
pp. 225-228
Keyword(s):  
Power Consumption ◽  
Cellular Networks ◽  
Mobile Phones ◽  
Communication Systems ◽  
Base Station ◽  
Wireless Cellular Networks ◽  
Lte Networks ◽  
Allocation Algorithm ◽  
Component Carrier ◽  
Bandwidth Expansion

This paper reflects the bandwidth expansion using component carrier scheme in LTE networks by using different OFDM’s i.e. bandwidth allocation algorithm and resource allocation algorithm are observed. Wireless cellular networks are an underlying for mobile phones, personal communication systems etc. There is a dramatic growth of wireless cellular networks in number of mobile phones. As a result, there is a significant increase in base station power consumption and data requirements. In competitive cellular industry, the power consumption in the base station has therefore become a major challenge to the vendors. Through component carrier based scheme the energy efficient LTE networks can be realized and energy efficiency can be improved to some extent through component carrier based scheme

scholarly journals Features detection based blind handover using kullback leibler distance for 5G HetNets systems

2020 ◽  
Vol 9 (2) ◽  
pp. 193
Author(s):  
Adnane El Hanjri ◽  
Aawatif Hayar ◽  
Abdelkrim Haqiq
Keyword(s):  
Mobile Networks ◽  
Energy Cost ◽  
Cellular Network ◽  
Information Criterion ◽  
Base Station ◽  
Low Energy ◽  
Small Cells ◽  
Signal Probability ◽  
Fifth Generation ◽  
Low Coverage

<p>The Fifth Generation of Mobile Networks (5G) is changing the cellular network infrastructure paradigm, and Small Cells are a key piece of this shift. But the high number of Small Cells and their low coverage involve more Handovers to provide continuous connectivity, and the selection, quickly and at low energy cost, of the appropriate one in the vicinity of thousands is also a key problem. In this paper, we propose a new method, to have an efficient, blind and rapid handover just by analysing Received Signal probability density function instead of demodulating and analysing Received Signal itself as in classical handover. The proposed method exploits KL Distance, Akaike Information Criterion (AIC) and Akaike weights, in order to decide blindly the best handover and the best Base Station (BS) for each user</p>

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