The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In the given article are shown the results of task solving of service quality raising of traffic flow transferring in multiservice networks based on dynamic conditions control of virtual network units and flexible distribution of router resource calculating.
This paper presents information about multi-access network and comparing a few technologies to provide the best quality of service. The paper provides a description of the basis for modeling a multi-access network. The models involved in the article take into condition an ability of setting priorities to a number of elected traffic classes. Solving the problem of prioritizing network traffic can increase...
The model of the virtual router with static and dynamic reconfiguration of resources is developed. This model allows to create effective virtual device with optimal parameters (length of queue, management discipline for queue overflowing, the number of service devices and their modes) in order to provide the required level of QoS for all services. The use of virtual network devices in the existing...
Satellite Communication technology offers the unique capability of simultaneously reaching out to very large numbers spread over large distances even in the most remote corners of the country. Mobile satellite services have been offered to link and complement terrestrial based cellular mobile systems and private mobile radio systems. GSAT series satellites in MSS band are proposed to be utilized for...
The training multiservice network with the remote access which includes DECT, WI-FI, ISDN and other segments is developed and implemented in this paper.
Multiservice telecommunication network is studied under adaptive routing in accordance with LLR method and the influence of equipment faults on network performance at connection level is analyzed. The approach is formulated to calculate call blocking probability and evaluate mean increment of this probability caused by limited reliability of network elements. The applicability of proposed mathematical...
This paper has proposed the analysis of network traffic real multiservice data network, defines its parameters and properties. A mathematical model to evaluate the quality and time parameters of unit maintenance of network traffic was selected.
This paper presents a survey of the authors results to discuss the model of a multiservice network with “triple play” (unicast, multicast, and elastic) traffic. The main results are given for the model with multicast traffic. Two service disciplines for multicast traffic are considered in the form of systems with transparent requests. An algorithm for the calculation of the blocking probabilities...
In order to forecast the quality of media streaming in multiservice networks under conditions of high load of network resources the research of the influence of network circulating traffic on streaming video and the efficiency analysis of existing protocols for transmission of multimedia data is held.
This paper presents an analytical model for evaluating the performance of streaming and elastic traffic integration in a multiservice network with dynamic channel allocation scheme (DCAS). Different classes of traffic have different quality of service (QoS) requirements. Therefore at the model analysis it is important to consider this feature. Formulae for performance characteristics e.g. blocking...
The main objective of the present paper is to develop an effective algorithm to calculate the performance measures for best-effort traffic transmitting over a multi-service network. We define the single link as a multi-rate loss model with elastic traffic. Elastic flows are assumed to share link capacity in an egalitarian processor sharing (EPS) manner. To ensure flows' minimum transmission rate minimum...
This paper is concerned with the resource allocation problem in the design of virtual private networks (VPNs) with unicast and multicast connections. The objective is to maximize the total network revenue that depends on blockings of unicast and multicast connections. Requests to set up connections are blocked if there is not enough available bandwidth on the links of the infrastructure network, e...
In this paper main particularities of the infrastructure of NGN are considered, instances base technologies, which meet the requirements and which can be used in transport network NGN are described.
In this paper an approach to the flow-based modeling of two-level routing in multiservice networks is considered. The model supports the source routing. At the low level - the level of edge routers - the routes are directly computed, and at the top level the received decisions are coordinated for excluding overloads of communication channels in a multiservice network.
We consider data networks in which real-time/near real-time applications require not only successful transmission of packets from source to destination, but also specific end-to-end delay bounds, such as voice over IP. Although there is a well-developed general theory for control of best-effort packet traffic in data networks (elastic traffic), little is known about decentralized control mechanisms...
This paper presents a comparative study between JET (Just Enough Time) and a number of new preemptive channel scheduling algorithms in optical burst switching (OBS) with QoS (Quality of Service) requirement. In terms of performance criteria, loss rate in byte, access delay and end-to-end delay are considered. A 2-state MMPP (Markov Modulated Poisson Process) traffic generator on a 14-node mesh network...
A WCDMA (wideband code division multiple access) network capacity is difficult to be judged because environment of mobile communication is always open, it depends many factors, e.g. noise, interference, network load etc. In this paper, we studied congestion probability for each service on uplink in a multi-services network such as a WCDMA network, and then we investigate network capacity based on...
The Global Information Grid (GIG) must provide Quality of Service (QoS) for multiple service classes across several, separately managed IP networks. DiffServ and admission control are used to support QoS needs for a set of real time and elastic services.
Grid networks have captured a lot of attention in recent years because of their potential to generate new applications thanks to network, computing and storage resources virtualization. Quality of service (QoS) is a key issue for grid services provisioning. Current grid services are provided on multi service networks such as the Internet. Thus, QoS architectures originally developed for the Internet...
Analytical modeling of multiservice packet network core with estimation of delay and jitter characteristics. Modeling is based on open queuing network with heterogeneous request flow with tree relative priority classes, reflected serving of tree considered traffic types in MPLS-network (data over IP, IPTV, voice over IP).
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.