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The big data era is presenting unprecedented opportunities for generating new revenues in various sectors ranging from health care, economics, life science, to manufacturing. Datacenters (DCs) are widely deployed to provision various application services as well as to process big data. Since more and more servers are installed in DCs, the cost of electricity incurs a financial burden for the DC operators...
Datacenters (DCs) are deployed in a large scale to support the ever increasing demand for data processing to support various applications. The energy consumption of DCs becomes a critical issue. Powering DCs with renewable energy can effectively reduce the brown energy consumption and thus alleviates the energy consumption problem. Owing to geographical deployments of DCs, the renewable energy generation...
Deep packet inspection or DPI is now a fast growing application technology in the field of network security, which requires the network security platform has a higher speed to handle a large number of session connections, and track the status of these connections quickly. This paper proposed the MP-DPI, a many-core based network processing platform, which uses the ATCA standard modular design, makes...
Today, the data exchanged over online social networks (OSNs) represents a significant fraction of Internet traffic. However, OSN content is different from more traditional web content, as it is more likely to be generated at the edge of the network, to be exchanged within a local geographic region, and to possess a more even popularity distribution with fewer popular objects. Unfortunately, most OSNs...
This paper proposes a mail control system called things mail system (shortened as tmail), which manage and control the delivery of physical mails based on the TCP/IP network and the express services provided by express companies. The tmail systems consist of tmail servers and tmail boxes, which store physical mails for users temporally and are supervised by tmail servers through the Internet. In order...
Blended Learning is a kind of strategy that implement teaching by comprehensive applying different learning theory, different techniques and tools, as well as the different application of methods. This paper elaborates the principle of blended learning and introduces the function of Database Principles and Applications online course. In addition, the paper discusses the instructional design of blended...
Since queueing is a common behavior in computer systems, analysis of queueing models become a mature theory that is widely applied in performance evaluation. In our work, a queueing model based approach is used to manage the performance attributes of a Video On Demand (VOD) back office system, which has been deployed and put into service on a province-scale cable TV network. Extracted from Software...
With the resurgence of virtualization technologies and the development of multi-core technologies, the combination of the two becomes a trend. Therefore, inter-VM communication becomes a key part in how to improve the performance of virtual machines (VMs) basing on multi-core platform. In this paper, we first analyze the characteristics of multi-core tasks and the properties of virtual machine environment,...
With its characteristics of fast, portable and friendly interaction interface, Mobile GIS for spatial data collection has become an important development trend of GIS as well as a major method for GIS data collection. However, it is not difficult to find that not only the online but also the off-line Mobile GIS data collection must collaborate with the desktop environment. For the different performance...
With the evolution and penetration of the IP-based core network and the mobile access networks, more and more legacy services are being transferred to the converged and unified IP-based platform. For realizing this transfer, SIP (Session Initiation Protocol) has been adopted by standards bodies for creating, modifying, and terminating multimedia sessions. SIP with application-level mobility support...
With the evolution and proliferation of the All-IP core network and the mobile access network, more and more legacy services are being transferred to the converged and unified IP-based platform. For this transfer, SIP (Session Initial Protocol) has been adopted by IETF, ETSI, and 3GPP for creating, modifying, and terminating multimedia sessions. SIP with application-level mobility support can replace...
With the development of GIS (geography information system), gradually GIS technic is applied in more and more fields from decision-making of government to every aspect of modern society. On the other hand software of today is becoming larger and more complex, component technic has played a very important part in development of software. Especially when you develop B/S (browser/server) software, you...
This article puts forward a method to access the data and analyzed results from the monitoring system of environment based on WSN with the B/S mode. It resolves the problem of low speed of page refresh with Ajax. The experiment shows that the partial refresh feature of Ajax can make it possible for the users to get access to the data and analyzed results easily through the browser, and experience...
Service discovery protocol (SDP) is one of the fundamental infrastructures in pervasive computing. However, various SDPs differ on service description model, system architecture, deployment network and service discovery mechanism. It is highly necessary to develop a framework that can provide interoperability for multiple SDPs. In this paper, we carry out an empirical study on building a novel interoperable...
In recent years, adding mobility technology to heterogeneous access networks has become important due to the growth and diversification of broadband access networks. For the simple and easily realization of seamless mobility in heterogeneous access networks, our previous paper proposed the All-SIP mobility architecture; it uses only SIP components in order to maintain both TCP and UDP communication...
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