In this paper, a field test platform called OTTCAP (OTT Services Capture and Analyze Platform) is developed for capturing and analyzing QoS (Quality of Service) and QoE (Quality of Experience) parameters of OTT (over-the-top) services in HSPA+ (Evolved High Speed Packet Access) networks, including Network-Level and Application-Level QoS parameters, terminal parameters and wireless environment p...

Several Big data services have been developed on the cloud to meet increasingly complex needs of users. Most times a single Big data service may not be capable in satisfying user requests. As a result, it has become necessary to aggregate services from different Big data providers together in order to execute the user's request. This in turn has posed a great challenge; how to optimally compose...

Software is gradually becoming more built by composing web services to support enterprise applications integration; thus, making the process of composing web services a significant topic. The Quality of Service (QoS) in web service composition plays a crucial role. As such, it is important to guarantee, monitor, and enforce QoS and ability to handle failures during execution. Therefore, an urge...

Reservationless computer communication networks based on the best effort paradigm are no longer capable of providing the quality of service necessary for the new generation of computer communication services, such as voice, video and multimedia services. These new services and their users have very different communication needs, and must not be treated equal by the communication system. Quality...

Service-oriented architecture (SOA) middleware has emerged as a powerful and popular distributed computing paradigm due to its high-level abstractions for composing systems and encapsulating platform-level details and complexities. Control of some details encapsulated by SOA middleware is necessary, however, to provide managed quality-of-service (QoS) for SOA systems that require predictable pe...

Performance of web services may fluctuate owing to the dynamic internet environment, which makes the Quality-of-Service (QoS) of web services inherently uncertain. With the increase in web services in the internet, selecting the optimal service from a set of functionally equivalent candidates becomes an important research problem. In this paper, we propose an efficient and effective approach fo...

Quality of Service (QoS) guarantees are usually regulated in a Service Level Agreement (SLA) between provider and consumer of services. Such guarantees are often violated, it may however be the case where the available services do not match exactly all required QoS, leading the system to grind to a halt. It would be better to look for an approximation for acceptable QoS and avoid the complete s...

In the past, numerous attempts at providing widespread Quality of Service (QoS) have failed. The two most popular architectures proposed, Integrated Services and Differentiated Services, suffer from scalability and flexibility concerns respectively. Newer QoS-enabling technologies such as MPLS have emerged, and look very promising in providing widespread QoS support. To provide a more general a...

We propose an architecture which can support video services in networks which have no Quality of Services (QoS) guarantees. We demonstrate that there is a need for such services today and also in the future, when QoS will be built into most networks. We then describe our current Internet-based system, which combines both image processing and networking techniques in order to provide good qualit...

With the growing adoption of the Service Oriented Architecture (SOA) in the industry and the wide deployment of Web services, users are increasingly requiring services that are capable of meeting their quality-of-service (QoS) requirements. In this paper, we propose a novel framework for QoS-aware Web service provisioning, which relies on QoS brokers, to mediate between clients and service prov...