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.
Widespread use of mobile terminal has promoted the rapid movements of information service technology. This paper analyzes the shortcomings of service capabilities in the case of the lack of infrastructure, and presents a service persistence method in mobile environment. Based on distributed service deployment, multiple backup and service session switch and other mechanisms, this method effectively...
Hardware-in-the-loop (HITL) simulation method can effectively improve the accuracy and reliability of wireless network simulation, it can be used for hardware test, software test and performance optimization etc. This paper analyzes the deficiency of the OPNET's existing external interface, and presents a HITL simulation interface based on agent (HSIBA), which is used for realizing the protocol mapping...
Failures due to software aging are typically caused by resource exhaustion, which is often preceded by progressive software performance degradation. Response time as a customer-affecting metric can thus be used to detect the onset of software aging. In this paper, we propose the distribution-based rejuvenation algorithm (DBRA), which uses a validated $({\rm M/E}_2/1/{\rm K})$ queuing model of the...
Online video service has become one of the main Internet applications, especially video-on-demand (VoD). Most VoD systems are based on P2P technology currently. As the number of users and media files grows rapidly on demand, the storage capacity of source media files becomes limited. Besides, the system performance and user experience drops obviously when online users do not share the same data. In...
An existing network video monitoring system has already realized putting independent video sources online, to monitor, manage and share resources in unison, in use of IP-based network. With the popularization of wireless network, system should resolve the bandwidth bottleneck in order for good of support for wireless video's uploading technology. So as to improve user experience, it is very important...
Visualization tools make it easier for users to observe the status of the wireless sensor networks (WSNs). So far, developers of WSNs have created various visualization tools under certain project/research backgrounds. These tools, however, are limited in certain application scenarios, since the underlying packet formats are hard coded into the programs. For this purpose, we present NetViewer, a universal...
Arming at the characteristic of shrapnel multi-type and variable batch, developing tools Visual C++ 6.0 and Pro/Toolkit are used, the CNC system based on SmarTeam Data Model is put forward. Effective management and utilization are carried out which are in the fields of the processing parameter inquiring, experience inquiring and G code of numerical control cutting, milling, drilling, boring and so...
In this paper, the technology of auxiliary VLAN is discussed. When IP phones are connected to the existing switch-based campus area network, the data traffic and voice traffic are present on the VLAN at the same time. To avoid a significant reduction on the quality of the VoIP traffic, the voice traffic is separated from the data traffic on an auxiliary VLAN. In an IP PBX, there are three frame types...
By analyzing various current grid portal designing modules, we propose pluggable based-on-OSGi grid portal, called BOPGP, to guarantee grid portal independent of platforms. BOPGP is designed based on OSGi, encapsulating grid service into dynamically installed and uninstalled Bundle, which can enlarge and modify system functions. To better satisfy the users' requirement of on-demand computing, we also...
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.