scholarly journals Comparison of Routing Methods in Telecommunication Networks—An Overview and a New Proposal Using a Multi-criteria Approach Dealing with Imprecise Information

2019 ◽  
pp. 397-427 ◽  
Author(s):  
João Clímaco ◽  
José Craveirinha ◽  
Lúcia Martins
Keyword(s):  
Telecommunication Networks ◽  
Imprecise Information ◽  
Routing Methods

scholarly journals Researching the Impact of Parameters of the Developed Routing Models on Network Performance

2017 ◽  
Vol 4 (1) ◽  
pp. 61 ◽  
Author(s):  
Mohammad Alhihi ◽  
Hani Attar ◽  
Mohammad Samour ◽  
Artem Akulynichev
Keyword(s):  
Network Performance ◽  
Structural Model ◽  
Data Gathering ◽  
Oriented Graph ◽  
Telecommunication Networks ◽  
High Quality ◽  
Network Maintenance ◽  
Telecommunications Network ◽  
Routing Methods ◽  
The Impact

Nowadays, it is hard to imagine work without applying the principle of computer networks, and every day the requirement for high-quality network maintenance is increasing. In order to have a high-quality network; always optimize QoS through the optimization of routing protocols is required. In this paper, the scientific task of optimizing routing processes in hybrid telecommunication networks with guaranteed quality of service is solved by developing models and methods of adaptive routing. To develop methods, a system of Telecommunications network (TN) mathematical models was constructed at the levels of its morphological and functional descriptions. We used a weighted oriented graph as a structural model. Formalization of the main indicators of the network operation efficiency is carried out, which are the network performance (or its derivatives – relative and normalized performances) and indicators of the degree of use of network resources – buffer memory capacities of nodes and bandwidth of the transmission paths. In this paper, an experimental study of the developed models and routing methods was carried out in order to verify their adequacy, evaluate the effectiveness, and develop practical recommendations. The scheme of experiment, focusing on the investigation of processes occurring in the network while solving routing tasks (data gathering, RT processing, distribution, and implementation), is proposed.

scholarly journals IMPROVED ALGORITHM FOR THE PACKET ROUTING IN TELECOMMUNICATION NETWORKS

2021 ◽  
Vol 3 (1) ◽  
pp. 114-119
Author(s):  
R. I. Liskevych ◽  
◽  
O. I. Liskevych ◽  
K. M. Obelovska ◽  
R. P. Panchyshyn R. P. ◽  
...  
Keyword(s):  
Network Performance ◽  
Optimal Path ◽  
Signal Propagation ◽  
Packet Transmission ◽  
Telecommunication Networks ◽  
Weighting Coefficient ◽  
Packet Routing ◽  
Integral Criterion ◽  
Routing Methods ◽  
Routing Tables

Packet routing efficiency is and will remain one of the major factors that have a major impact on a network performance and a quality of service. One of the most common routing protocols used in autonomous Internet systems is the Open Shortest Path First (OSPF) protocol. The OSPF protocol performs packet transmission using the shortest paths, calculated according to a certain, but only one criterion. Default criterion is channels bandwidth, but in general any criteria can be selected. The disadvantage here is that channels loading is not considered and thus packets are routed to a shortest but potentially overloaded path. In wider sense usage of single criteria may results in routing through paths suboptimal or even inappropriate by other criteria. The growth of the network traffic, and especially the increase of its multimedia component drives continuous improvement of routing methods in existing telecommunication networks. Network performance will benefit from more advanced routing methods, which would take into account several network characteristics, important for specific services quality. In given work a new algorithm of a gateway selection for the routing tables of autonomous Internet systems is proposed. The algorithm is based on the OSPF protocol but takes into account three criteria: channel bandwidth, the number of intermediate nodes in the path and the signal propagation delay. Weighting coefficient for each criteria is introduced. Besides that, the integral criterion is proposed based on optimal path weights for individual criteria and path weights found by two other criteria. The total relative deviation of the path weight from the path weights calculated according to individual criteria is used as the optimization criterion. The purpose of optimization is to minimize this deviation. Routing tables constructed using proposed algorithm ensure packets transmission through the optimal path, selected according to the integral criterion, taking into account the three criteria and their coefficients of importance. Further research may be conducted to expand the list of criteria used in the optimization process.

The use of mass media and information and telecommunication networks as an evidence of offences punished for illegal trafficking of items and materials

2020 ◽  
Vol 2020 (4) ◽  
pp. 80-88
Author(s):  
Andrey Antipov
Keyword(s):  
Mass Media ◽  
Russian Federation ◽  
Criminal Code ◽  
Telecommunication Networks ◽  
Russian Society ◽  
Law Enforcement Agencies ◽  
The Russian Federation ◽  
Illicit Trafficking ◽  
Special Control ◽  
Comprehensive Study

In This paper is dedicated to the examination of one of the most relevant and significant problems of Russian society – illegal trafficking of items and materials, carried out using mass media andinformation and telecommunication networks. Top officials of the state raise the issue of the importance of special control in this area by law enforcement agencies. Despite this attention, comprehensive study on the criminal-legal significance of the use of mass media and information and telecommunication networks in illegal trafficking has not been yet undertaken in the frame of criminal law of Russia. The author examines the concept of «illegal traffic», analyses the texts of the articles of the criminal code of the Russian Federation, which explicitly criminalize illicit trafficking. The author makes a conclusion about the reasonableness of making changes to certain articles of the criminal code of the Russian Federation, in regard to the part concerning establishing stricter penalties for committing socially dangerous acts using mass media and information and telecommunication networks.

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