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The development of telehaptic communication protocols has gained widespread focus over the past decade. Several protocols have been proposed for carrying out telehaptic activities over a shared network. However, a comprehensive analysis of the impact of the network crosstraffic on the telehaptic stream, and the feasibility of Quality of Service (QoS) compliance, is lacking in the literature. In this...
In this article, we analyze the performance evaluation of WiFi technology in conformance with IEEE 802.11b/n/ac standards and Wireless Distribution System (WDS) for indoor environments with and without obstacles. We present different scenarios by varying the distance between transmitter and receiver. We analyzed the performance of the network by using the intrusive technique of traffic injection with...
Since complex network environment makes the video data with network resources change quickly, video transmission must possess the ability to adapt to the change of network status. After studying the video stream congestion question as well as the network adaptive transmission control and the transmission characteristic of RTP (Real-time Transport Protocol) RTCP (Real-time Transport Control Protocol),...
In a heterogeneous environment of 4G broadband networks, participating technologies orchestrate their own provisioning for the Quality of Service (QoS) management. As we move towards 5G, those technologies are moving towards a common set of objectives to offer the end users higher capacity, robustness, security, QoS, etc. in a unified and converged manner. In order to provide end-to-end QoS support...
Usage of wireless networks is rising in popularity. In this setting different kinds of networks for indoor environments, such as Ad-Hoc, IEEE 802.11b (Wi-Fi) and Wireless Distribution System (WDS) has been developed. In this paper, an analysis of Quality of Service (QoS) has been made for each network in order to verify the values of bit rate, delay, jitter and packet loss. For performance comparison...
We demonstrate experimentally how an Autonomic Network based on the CPN protocol can provide the Quality of Service (QoS) required by voice communications. The implementation uses Reinforcement Learning to dynamically seek paths that meet the quality requirements of voice communications. Measurements of packet delay, jitter, and loss illustrate the performance obtained from the system.
Packet streams observed in today's networks show a high degree of autocorrelation as successive packets tend to exhibit similar delay and loss characteristics. Network emulators used to conduct performance evaluations therefore have to support the generation of such autocorrelated streams. Typically, this is done using first order autoregressive processes. In this paper, we show that a common implementation...
The rapid growth of wireless mobile communications raises the critical issue of meeting user expectations and requirements. This paper deals with the subjective assessment of the perceived quality of video calling services delivered on a real LTE/4G network. The main goal is to determine the list of parameters that are predominantly impacting the Quality of Experience (QoE). The influencing parameters...
Network resources in terms of available bandwidth are not always sufficient to provide desired quality of service, especially for real-time traffic. Network performance parameters such as delay, jitter and packet loss are significant indicators of suitability of the path for this type of traffic. To provide QoS traffic engineering methods are used. In this paper we focus on traffic engineering in...
This paper proposes a methodical approach to improve the Quality of Service (QoS) evaluation in wireless and mobile networks. The approach uses the fuzzy logic tools and techniques to map the traditional QoS parameters into a unified value to quantify the QoS levels of these networks. Extensive simulation studies are conducted to examine the effectiveness of this method. The results show that our...
As the growth of digital home application, the quality of service (QoS) of network is a very critical issue and influences the satisfaction of end users to enjoy the desired service, especially for real-time sensitive service. It is important for service provider to verify the actual QoS parameters, such as delay, jitter and packet loss are satisfying the service requirement of their customers. The...
In this paper, we design a new dynamic packet scheduling scheme suitable for differentiated service (DiffServ) network. Designed dynamic benefit weighted scheduling (DBWS) uses a dynamic weighted computation scheme loosely based on weighted round robin (WRR) policy. It predicts the weight required by expedited forwarding (EF) service for the current time slot (t) based on two criteria; (i) previous...
The performance management is specified Quality of services (QoS) parameters is throughput, jitter, packet loss and delay. Network performance (NP) is very challenging to predict and guarantee in QoS performance because many service and applications rapidly increased. From that, Broadband wired assessment was conducted among 5 regions in Malaysia with 25 locations. Assessment is to benchmarking network...
WiMAX, the acronym for Worldwide Interoperability for Microwave Access is a set of technical standards based on IEEE 802.16 standard. It provides an internet connection to broadband coverage area of several kilometers in radius, it's an adequate response to some rural or inaccessible areas. Unlike DSL (Digital Subscriber Line) or other wired technology, WiMAX uses radio waves and can provide point-to-multipoint...
Video transmission based on Android platform is introduced in the paper, and an adaptive video transmission congestion control methods is proposed. Bit rate and frame rate will changed based on the feedback information which included bit error ratio and delay jitter automatically. The traditional control method has been improved, and the jitter will reduce due to the method. Double buffering is used...
Motivated by the increasing demand for multimedia services in the internet broadband networks, WiMAX (Worldwide Interoperability for Microwave Access) technology has emerged as a competitive alternative to wired networks broadband. WiMAX is used today as a method of transmission and high-speed internet access, covering a wide geographical area. Unlike DSL (Digital Subscriber Line) or other wired technology...
As the Internet evolves into a ubiquitous communications, VoIP network becomes more important and popular. It will be expected to meet the quality standards for VoIP networks. The aim of this paper is to undertake a fundamental investigation to quantify the impact of network impairment and speech relates parameters on perceived QoS in VoIP networks. Our contribution is threefold. First, a new VoIP...
The future Internet scenario consists of a higher number of users and applications, which demand more resources from the communication infrastructure. Techniques for providing performance and scalability, such as Traffic Engineering (TE), will always be necessary even if the transmission rate is very high, because of such demands. Quality of Service is one of the solutions that can be used to improve...
Currently, Voice over Internet Protocol (VoIP) is replacing traditional telephone systems Public Switched Telephone Network (PSTN). Unlike PSTN, VoIP transfers data packets over the open network the Internet. It is possible to monitor data packets from any location connected to the Internet network; hence, it is necessary to consider security and privacy when implementing a VoIP system. However, due...
Evaluation of Quality of Service (QoS) is an important task in managing computer networks. In this study, an innovative QoS evaluation system was proposed. The system combines discrimination features of supervised and unsupervised neural networks to analyse and assess QoS for transmission of Voice over Internet Protocol (VoIP) in a simulated computer network. The transmitted application' QoS parameters...
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