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It is predicted that the global mobile data traffic will increase nearly eightfold in the next five years, and the cloud applications will consist of 90 percent of total mobile data traffic by the end of 2019. There is no doubt that the increasing high quality video requirements and huge similar information stored in cloud servers enforce to setup a new communication paradigm. In this paper, we will...
The virtualization technology has been widely used in today's doud computing datacenters. With the virtualization technology, each physical machine in a datacenter can be logically divided into several virtual machines, on which different types of software services can host. However, many reasons may decrease the availability of the whole system. For example, a failed physical machine automatically...
In cognitive radio network (CRN), the utilization of wireless spectrum can be dramatically improved with the secondary user (SU) opportunistically access the licensed channels. With the help of spectrum sensing technology, the SU can dynamically access a large number of spectrum holes. However, how to allocate the spectrum holes between SUs becomes a thorny problem. The utilization of proper allocation...
How to optimize OPC Group Management is the most frequently asked question when integrating OPC with a SCADA system. Group management assumes that the OPC client has the information to partition OPC items into homogeneous OPC groups with optimal configuration parameters, such as update rate or deadband. In reality, supervised group management mandates an empirical configuration which often leads to...
The purpose of this research is to design and implement an intelligent prediction system for manufacturing quality. 12 manufacturing factors are chosen from four categories of MEPH (Material/Equipment/Product/Human), through the sampling, features extraction, or features conversion system to present features of manufacturing system in this research. Then, we take quality samples composing by 12 features...
With the development of information technology, information goods will become an important component of people's daily consumption, response to the characteristics of information goods, how to provide safe and efficient way to implement micropayment system become more and more important. Ajax is a novel technology using in rich-client web application recently, it provide a better way of information...
According to those features proposed in this paper we let the normal user's computers get involved in the data grid system easily, and share their powerful resources with the system. Users also can download the resources in this storage system so that data can be efficiently transferred. In this work, we make users' computers involved in this distributed storage system easily, and share their powerful...
In some oil fields, the consumption of electricity and energy was very high because the beam pumping unit worked sustained, expect in the height period of electricity consumption. It increases the burden on the grid and make machines wearied easily when voltage instability. In this paper, we propose a concept of intermittent pumping to beam pumping unit and build a monitoring system of oil wells based...
In this work, we make utilization of users' computers involved in this distributed storage system easily, and share their powerful resources with this P2P environment. Users can download the files from this P2P distributed storage system. To transfer more efficiently, this paper also proposes a parallel transfer algorithm for every node and replication mechanism. The experiment results have shown...
Voice over Internet protocol (VoIP) is a prevalent multimedia application nowadays. For mobile nodes (MNs) using VoIP services in wireless networks, the handoff issues need to be taken into account. Stream control transmission protocol (SCTP) is a potential transport layer protocol with multi-homing and multi-streaming functions. Mobile SCTP with dynamic address reconfiguration (DAR) extends SCTP...
Complex system structure and various devices existing in expressway tunnel monitoring system make the integration of the monitoring system software difficult. As an open communication interface standard, OPC provides a good solution for expressway tunnel monitoring system software integration. Associating with the development of Xihan expressway tunnel monitoring system software, a design of monitoring...
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