グラフ的システム解析法GERT(Graphical Evaluation and Review Technique)について

The traditional networks are facing difficulties in managing the services offered by cloud computing, big data, and the Internet of Things as the users have become more dependent on their services. Software-Defined Networking (SDN) has pulled enthusiasm in the integration process of technologies and function as per the user’s requirements for both academia and industry, and it has begun to be embraced in actual framework usage. The emergence of SDN has given another idea to empower the focal programmability of the system. Because of the increasing demand and the scarcity of resources, the load balancing issue needs to be addressed efficiently to manage the incoming traffic and resources and to improve network performance. One of the most critical issues is the role of the controller in SDN to balance the load for having a better Quality of Service (QoS). Though there are few survey articles written on load balancing, there is no detail and systematic review conducted in load balancing in SDN. Hence, this paper extends and reviews the discussion with a taxonomy of current emerging load balancing techniques in SDN systematically by categorizing the techniques as conventional and artificial intelligence-based techniques to improve the service quality. The review also includes the study of metrics and parameters which have been used to measure the performance. This review would allow gaining more information on load balancing approaches in SDN and enables the researchers to fill the current research gaps.

/pdf/a-systematic-review-of-load-balancing-techniques-in-software-4rqaxfyklq.pdf

A Systematic Review of Load Balancing Techniques in Software-Defined Networking

https://link.springer.com/content/pdf/10.1057/jors.1975.29.pdf

Systems Analysis and Design Using Network Techniques.

IoT Based Wireless Sensor Network for Power Quality Control in Smart Grid

Nowadays there is an increase in transfer volumes of audio, video and other types of multimedia content in modern computer networks (CN). Multimedia streaming and multicasting applications have limited jitter and end-to-end delay requirements and do not allow full providing of all necessary conditions for efficient data transmission on the Internet. To provide quality of service (QoS) of streaming applications Internet Engineering Task Force (IETF) proposed two QoS architectures: IntServ and DiffServ. However, these architectures have the limited ability of dynamical change in the movement of data flows and do not ensure compliance with all QoS requirements. Complexity in service of CN is often combined with incomplete compatibility of network decisions that involves dependence on the hardware manufacturers. The purpose of the work is the development of the enhanced dynamic load balancing algorithm in CN with QoS. The present work is dedicated to the simulation of software of dynamic load balancing processes. The results of the investigations of the offered algorithm on different topology of CN by 5 QoS-metrics are presented too. The assessment and comparison of the efficiency of the offered load-balancing algorithm with known analog such as Yen’s algorithm including traffic engineering (TE) module are executed.

Enhanced Dynamic Load Balancing Algorithm in Computer Networks with Quality of Services

In modern computer networks, loading and bandwidth of communication links are optimized for providing high-quality service of network traffic, new services and technologies. As a rule, for this task the protocols of dynamic routing based on Dijkstra’s algorithm are used. Protocols of multipath routing for ensuring reliability and accuracy of the provided information allow to divide critical traffic and to execute load balancing along several routes at the same time. The purpose of the work is development and research of the improved multipath adaptive routing model in computer networks with load balancing. In this work, we focused on indicator of jitter optimization between the paved paths and a deviation value of reserve routes from an optimal route. Comparison and estimation of the offered algorithm with some existing approaches, and also modeling and analysis on various topologies of computer networks have been carried out.

Development and research of improved model of multipath adaptive routing in computer networks with load balancing

Nowadays the traditional architecture of computer networks (CN) requires big resources for support of transmission of growing data flows for large number of devices taking into account quality of service (QoS). It allows to solve a wide range of tasks on the organization of data exchange, providing development of information society. Complexity in service of CN is combined often with incomplete compatibility of network decisions that it involves dependence on hardware manufacturers. The mismatch of client's needs and solutions proposed in the market led to appearance of new concepts of creation and organization of data networks — software-defined networks (SDN) on the basis of OpenFlow (OF) protocol. SDN technology on the basis of OF protocol suggests to refuse such tendency of development of CN, having executed transition from separate network elements and network, to platforms in general. Control of network flows happens to the help of applications, which they are possible to optimize flows to find the shortest path, as it is done by the modern distributed routing protocols, and also to optimize network for the maximum use of communications. The purpose of work is development of conceptual approach of dynamic load balancing of data flows in SDN with QoS of different network applications.

Approach of dynamic load balancing in software defined networks with QoS

Fast growth and development of software defined network (SDN) and data transmission technologies set high requirements to the quality of service (Quality of Service, QoS) of network applications, high-speed and reliable data exchange between nodes of telecommunication system with strict requirements to delays of information transmission. The exact definition of the optimal transmission route allows to support the SDN in the required condition for the user. In work the review and analysis of the main parameters and metrics of quality of network services in SDN are executed. On the basis of the carried-out analysis influence of network parameters on the applications used in network is established.

Analysis of QoS metrics in software defined networks

In modern computer networks loading and bandwidth of communication links are optimized for providing high-quality service of network traffic, new services and technologies. As a rule, for this task the protocols of dynamic routing based on Dijkstra algorithm are used. Protocols of multipath routing for ensuring reliability and accuracy of the provided information allow to divide critical traffic and to execute load balancing along several routes at the same time. The purpose of the work is efficiency present of the advanced model of multipath adaptive routing in computer networks with load balancing. In this work we focused to comparison and estimation of the offered algorithm with some existing approaches, and also modeling and analysis on various topologies of computer networks taking into indicator of jitter optimization between the paved paths and deviation value of reserve routes from optimal route.

Vyacheslav Koryachko

Papers

Development and research of improved model of multipath adaptive routing in computer networks with load balancing

Enhanced Dynamic Load Balancing Algorithm in Computer Networks with Quality of Services

Approach of dynamic load balancing in software defined networks with QoS

Analysis of QoS metrics in software defined networks

Multipath adaptive routing in computer networks with load balancing