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Advanced regulation machine (ARM) is determined to make the perfect parameters (AIFS, CWmin and CWmax) selections in the wireless networks platform. The simple but effective adjustment strategies of three parameters combinations are proposed with the priority theory to obtain the acquired high quality of service (QoS). The internal competitions models of various traffic analysis machines are delivered...
In this paper, we propose a framework for SLA specification and negotiation in next generation networks. The framework encompasses a general service level specification format and conformance matching rules. The proposed specification format allows administrators to describe service classes in their own domains independently of the network technology and the applied QoS model. We further define and...
For meeting quality of services, it is proposed the Analytic Hierarchy Process evaluation model with the new generation power information and communication technology (ICT) network in this paper. Firstly, based on the characteristic of the network, the quality evaluation indicators are established and the parameters of the indicators are extracted. Finally the proposed method implements evaluation...
Web service composition can make use of distributed services with various functions to accomplish a specific task. Service binding and composition become keywords to service computing. In the context of workflow management, service binding plays an important part in forming a concrete workflow after an abstract one is submitted. Existing research is devoted to selecting a set of servers to run the...
Semantic QoS Provisioning (sQoS) is a novel approach to dynamically control the permitted level of QoS per flow. This scheme has been presented in [1] and [2]. Using a prototype, which has been implemented as a QoS-driver for Windows Vista/7, we have shown that our approach does not affect the performance of the hosts. In this paper, we present a simulative performance study of the proposed scheme...
QoS adaptation is an important process in inter-domain service management, since it can guarantee the correct service provisioning when unexpected events occur. However, in inter-domain environments, the human interference and the manual-based operations hamper the deployment of expeditious mechanisms to adapt the QoS of the services. This paper presents an approach based on SOA principles to perform...
In general, network traffic is classified and marked at the edge- or ingress-routers of a transit network to permit different levels of QoS when using the DiffServ architecture. Thus, the core-nodes of a network are able to handle the traffic accordingly. Problems in the process of identification of traffic flows and their associated applications, for example because of encryption, avoid the classification...
Inter-domain QoS-aware service provisioning is still a complex task due to the Internet heterogeneity. It is necessary to overcome several obstacles in order to achieve a scenario where providers fully interact to satisfy all customer service requirements. Some of these obstacles are service class specification and service composition. This paper presents an integrated approach for service class specification...
Services composition can reorganize a variety of heterogeneous network services to form new businesses on multi-service streaming media system, which can speed up the development and deployment of new Services. In this paper, a three layer model is used to describe the service composition in a streaming media system. In order to improve the real-time request response performance, service composition...
The bursting aggregation assembly in edge nodes is one of the key technologies in OBS (Optical Burst Switching) network, which has a direct impact on flow characteristics and packet loss rate. A new optical burst assembly technique supporting QoS is put forward in this paper, which can automatically adjust the threshold along with the increasing and decreasing volume of business, reduce the operational...
In the context of telecommunications networks, the concept of self-organisation implies the introduction of functionalities that lead to the automation of network operational tasks and reduce the need for manual intervention, as well as the provision of DSA mechanisms and enhancement of radio resource management, improvement of QoS and QoE and reduction of OPEX. Based on the definitions of Self-Organising...
eCommerce is an area where an Autonomic Computing system could be very effectively deployed. eCommerce has created demand for high quality information technology services and businesses seek ways to improve the quality of service in a cost-effective way. Properly adjusting tuning parameters for best values is time-consuming and skills-intensive. This paper describes a simulation environment to implement...
This paper finds that, in the process of marketization, network-type service monopoly enterprises tends to pursue their profit goal through product and service differentiation, by lowering the quality of universal service and increasing the price and quality of high-paid services, which usually expel customer from universal service to more expensive service, hence reduce the social welfare. After...
When disaster happens, it is necessary to employ efficient and accurate methods to select the best service from many service backed sites to control DR (Disaster Recovery) activities. Aim at the service deployment algorithm is not suit for MultiObjective DR of policy and target distinct. This paper presents a novel algorithm MOGOSD (MultiObjective Global Optimal Service Deployment) to resolve service...
This paper addresses quality of service aspects of Web services (WS) orchestrations created using the business process execution language for Web services (BPEL4WS). BPEL4WS is a promising language describing the WS orchestrations in form of business processes, but it lacks of a sound formal semantic, which hinders the formal analysis and verification of business processes specified in it. Formal...
The priority method is proposed for wireless LAN in this paper, which is that different workstations are distinguished with different business in wireless LAN, through modeling and simulation, the network performance parameters are analyzed in the priority mechanism, the results showed that the priority mechanism can achieve the better network performance. To a certain extent, it is guaranteed that...
The paper is focused on evaluating the performances of a WiMAX system in a variety of service scenarios, with particular attention to video applications. To this aim several experiments are carried out over a 2.5 GHz WiMAX test-bed deployed at the radiocommunication laboratories of the University of Rome "Tor Vergata". Throughput and link quality are tested in uplink and downlink in correspondence...
In this paper a solution for the facility location problem is presented over an m-commerce infrastructure. An extensive comparison is performed for different scenario. Also delay studies and comparisons on m-transactions are carried out. Numeric and analytical results are presented.
With an increased focus on national security and public safety communications, the US Congress revisited its plan to reclaim television broadcaster frequencies to be reallocated and auctioned by the FCC and it specifically allocated a portion of that spectrum for use by public safety. The FCC was charged with the duty of auctioning this spectrum and licensing it to create a public safety network....
This paper describes a benchmarking workload model for business process execution language (BPEL) engines for Web services. The proposed model is based on simulation of real world traffic conditions by defining a set of requirements which best characterize the end-users. The performance characteristics are evaluated on top of collected measurements such as success/fail rate, response times or round-trip...
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