scholarly journals Quality of service performances of video and voice transmission in universal mobile telecommunications system network based on OPNET

2021 ◽  
Vol 10 (6) ◽  
pp. 3202-3210
Author(s):  
Sameer A. S. Lafta ◽  
Mohaned Mahdi Abdulkareem ◽  
Raed Khalid Ibrahim ◽  
Marwah M. Kareem ◽  
Adnan Hussein Ali
Keyword(s):  
Quality Of Service ◽  
Video Transmission ◽  
Mobile Telecommunications ◽  
Voice Transmission ◽  
Wide Range ◽  
Universal Mobile Telecommunications System ◽  
Video And Audio ◽  
Qos Performance ◽  
Umts Networks

The universal mobile telecommunications system (UMTS) has distinct benefits in that it supports a wide range of quality of service (QoS) criteria that users require in order to fulfill their requirements. The transmission of video and audio in real-time applications places a high demand on the cellular network, therefore QoS is a major problem in these applications. The ability to provide QoS in the UMTS backbone network necessitates an active QoS mechanism in order to maintain the necessary level of convenience on UMTS networks. For UMTS networks, investigation models for end-to-end QoS, total transmitted and received data, packet loss, and throughput providing techniques are run and assessed and the simulation results are examined. According to the results, appropriate QoS adaption allows for specific voice and video transmission. Finally, by analyzing existing QoS parameters, the QoS performance of 4G/UMTS networks may be improved.

scholarly journals A Lightweight Slice-Based Quality of Service Manager for IoT

IoT ◽  
2020 ◽  
Vol 1 (1) ◽  
pp. 49-75
Author(s):  
Antonio Oliveira-Jr ◽  
Kleber Cardoso ◽  
Filipe Sousa ◽  
Waldir Moreira
Keyword(s):  
Quality Of Service ◽  
Industry 4.0 ◽  
Farming Systems ◽  
Smart Manufacturing ◽  
Network Slicing ◽  
Wide Range ◽  
The Internet Of Things ◽  
Service Manager ◽  
Digital Farming

Industry 4.0 and digital farming rely on modern communication and computation technologies such as the Internet of Things (IoT) to provide smart manufacturing and farming systems. Having in mind a scenario with a high number of heterogeneous connected devices, with varying technologies and characteristics, the deployment of Industry 4.0 and digital farming solutions faces innovative challenges in different domains (e.g., communications, security, quality of service). Concepts such as network slicing and Software-Defined Networking (SDN) provide the means for faster, simpler, scalable and flexible solutions in order to serve a wide range of applications with different Quality-of-Service (QoS) requirements. Hence, this paper proposes a lightweight slice-based QoS manager for non-3GPP IoT focusing on different use cases and their varying requirements and characteristics. Our focus in this work is on non-3GPP IoT unlicensed wireless technologies and not specifically the end-to-end network slice perspective as described in 5G standards. We implemented and evaluated different QoS models in distinct scenarios in a real experimental environment in order to illustrate the potential of the proposed solution.

scholarly journals Model-Based Cloud Service Deployment Optimisation Method For Minimisation of Application Service Operational Cost

2021 ◽  
Author(s):  
Ivana Stupar ◽  
Darko Huljenić
Keyword(s):  
Quality Of Service ◽  
Cloud Service ◽  
Operational Cost ◽  
Cloud Infrastructure ◽  
Application Service ◽  
Cloud Application ◽  
Wide Range ◽  
Service Deployment ◽  
Cloud Applications

Abstract Many of the currently existing solutions for cloud cost optimisation are aimed at cloud infrastructure providers, and they often deal only with specific types of application services, leaving the providers of cloud applications without the suitable cost optimization solution, especially concerning the wide range of different application types. In this paper, we present an approach that aims to provide an optimisation solution for the providers of applications hosted in the cloud environments, applicable at the early phase of a cloud application lifecycle and for a wide range of application services. The focus of this research is development of the method for identifying optimised service deployment option in available cloud environments based on the model of the service and its context, with the aim of minimising the operational cost of the cloud service, while fulfilling the requirements defined by the service level agreement. A cloud application context metamodel is proposed that includes parameters related to both the application service and the cloud infrastructure relevant for the cost and quality of service. By using the proposed optimisation method, the knowledge is gained about the effects that the cloud application context parameters have on the service cost and quality of service, which is then used to determine the optimised service deployment option. The service models are validated using cloud application services deployed in laboratory conditions, and the optimisation method is validated using the simulations based on proposed cloud application context metamodel. The experimental results based on two cloud application services demonstrate the ability of the proposed approach to provide relevant information about the impact of cloud application context parameters on service cost and quality of service, and use this information in the optimisation aimed at reducing service operational cost while preserving the acceptable service quality level. The results indicate the applicability and relevance of the proposed approach for cloud applications in the early service lifecycle phase since application providers can gain useful insights regarding service deployment decision without acquiring extensive datasets for the analysis.

scholarly journals QoS Aware Video Transmission in Wireless Network: Successful and Failure Existing Technique

2020 ◽  
Vol 8 (5) ◽  
pp. 516-523
Keyword(s):  
Quality Of Service ◽  
Wireless Network ◽  
Routing Protocols ◽  
Video Transmission ◽  
Daily Life ◽  
Research Work ◽  
Effective Bandwidth ◽  
Face To Face ◽  
Novel Approach

Wireless technology has become one of the integral part of our daily life, it is the 21st century technology, emergency of wireless network have led the multimedia distribution very effectively. Moreover the video has been an eminent media for communications as well as for the entertainment purpose for past several decades. Due to improvisation in technologies people can communicate over face to face over the wireless network without any concern about the distance, hence the video transmission over the wireless network has become one of the interesting application in daily life. Moreover, it is very important to maintain good QoS (Quality of Service) such as effective bandwidth, routing protocols and other QoS parameters. In this paper, we have surveyed the extensive amount of research paper to understand the Quality of service, meanwhile we have extensively discussed the various existing methodology, which has helped in improvising the wireless network for video transmission. Moreover the main aim of this research work is to survey and address all the requirement along with challenges that occurs while designing the wireless network, also this survey unveils the recent development in optimization, algorithm, novel approach and the protocols for improvising the Quality of Service

scholarly journals Optimized Uplink Scheduling Model through Novel Feedback Architecture for Wimax Network

2019 ◽  
Vol 9 (1) ◽  
pp. 1353-1359
Keyword(s):  
Quality Of Experience ◽  
User Mobility ◽  
Broadband Wireless ◽  
Bandwidth Request ◽  
Uplink Scheduling ◽  
Scheduling Model ◽  
Wide Range ◽  
Video And Audio ◽  
Better Than

Broadband Wireless Access has drawn the fine attention due to the wide range of data requirement and user mobility all the time. Moreover, WiMAX provides the best QoE (Quality of Experience) which is based on the IEEE 802.16 standards; this includes several services such as data, video and audio. However, in order to provide the effective and smooth experience i.e. QoS scheduling plays one of the critical part. In past several mechanism has been proposed for effective scheduling however, through the research it is observed that it can be furthermore improvised hence in this we propose a mechanism named as OUS (Optimized Uplink Scheduling) which helps in improvising the QoS. In here, we have proposed a novel feedback architecture and proposed optimized scheduling which helps in computing the bandwidth request this in terms helps in reducing the delay as well as jitter. Moreover, the performance evaluation is performed through extensive simulation by varying the different SS and frequency and the results analysis confirms that our mechanism performs way better than the existing algorithm.

Toward Distributed QoS Driven Wireless Messaging Infrastructure

2012 ◽  
pp. 377-391
Author(s):  
Souheil Khaddaj ◽  
Bippin Makoond
Keyword(s):  
Quality Of Service ◽  
Real Time ◽  
Video Transmission ◽  
Voice Over Ip ◽  
The Internet ◽  
Banking Services ◽  
Quality Aspects ◽  
Mobile Accessibility ◽  
Mobile Market

The Telecoms market is demanding more services which involve an increased mobile accessibility to the Internet, real time video transmission, real time games, Voice over IP (VOIP), and business critical transactions such as billing transactions and banking services. Meeting these challenges requires the mobile operators to change the way they design their telephony and messaging systems. As the mobile market moves to become more service centric, rather than technology centric, Quality of Service (QoS) has grown to become imperative, since in the Telecoms innovative services are very often short lived, where the quality aspects of a system and the provided services contribute as key differentiators. Thus, the main focus of this chapter is based around the QoS issues which have led to the consideration of a distributed messaging model to address the challenges faced in the Telecoms industry.

scholarly journals Dynamic and adaptive multi-path routing algorithm based on software-defined network

2018 ◽  
Vol 14 (10) ◽  
pp. 155014771880568 ◽  
Author(s):  
Wu Jiawei ◽  
Qiao Xiuquan ◽  
Nan Guoshun
Keyword(s):  
Quality Of Service ◽  
Real Time ◽  
Video Transmission ◽  
Service Providers ◽  
Routing Algorithm ◽  
Global Network ◽  
Software Defined Network ◽  
Network State ◽  
Computational Overhead

Recently, there has been a surge of the video services over the Internet. However, service providers still have difficulties in providing high-quality video streaming due to the problem of scheduling efficiency and the wide fluctuations of end-to-end delays in the existing multi-path algorithms. To solve these two problems affecting video transmission quality, networks are expected to have the capability of dynamically managing the network nodes for satisfying quality-of-service requirements, which is a challenging issue for media streaming applications. Against this changing network landscape, this article proposes a dynamic and adaptive multi-path routing algorithm under three constraints (packet loss, time delay, and bandwidth) that are based on software-defined network for centralized routing computations and real-time network state updating in multimedia applications. Compared with related multi-path routing proposals, dynamic and adaptive multi-path routing makes efficient use of the latest global network state information achieved by the OpenFlow controller and calculates the optimal routes dynamically according to the real-time status information of the link. Moreover, our proposed algorithm can significantly reduce the computational overhead of the controller while completing a fine-grained flow balance. Experimental results show that dynamic and adaptive multi-path routing significantly outperforms other existing scheduling approaches in achieving a 35%–70% improvement in quality-of-service.

Safe Quality of Service Aware Management of Heterogeneous Sensor Networks

2006 ◽  
Vol 07 (01) ◽  
pp. 179-193 ◽  
Author(s):  
Mohamed Younis ◽  
Waleed Youssef ◽  
Mohamed Eltoweissy ◽  
Stephan Olariu
Keyword(s):  
Quality Of Service ◽  
Network Performance ◽  
Vital Role ◽  
Heterogeneous Sensor Networks ◽  
Evolutionary Neural Network ◽  
Wide Range ◽  
Pervasive Service ◽  
Potential Damage

Wireless networked sensors are envisioned to play a vital role in the emerging pervasive service platforms that will instrument a wide range of next generation civil and military applications. Recently, we have proposed ANSWER: AutoNomouS Wireless sEnsor netwoRk as a service platform whose mission is to provide dependable information services to in-situ mobile users while satisfying their quality-of-service (QoS) requirements. Alongside with the stationary tiny sensors, the network employs more powerful mobile devices referred to as aggregation and forwarding nodes (AFNs). ANSWER exploits AFN mobility to support QoS requirements. However, as an AFN moves closer to an event (for example, a hazardous spill), it may be at risk (for example, due to potential damage). In this paper, we present a quantitative analysis of the interplay and balance between QoS support and asset safety. We propose a new scheme, called SAFER (for SAFEty-aware Relocation), which pursues relocation of the AFN in order to boost network performance without unnecessarily compromising AFN safety. For the relocation process to take place, SAFER uses historical data on detected events and employs an evolutionary neural network to assess the risk involved and predict good quality new position(s). Experimental results demonstrate the effectiveness of SAFER.

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