3. Through the server use the Windows 2000 Advanced Server and the user terminal use the Windows 2000 Professional, build the Windows 2000 Domain, this is the concentrated network manage for the resource and config and audit, that use central ized-catalog database that includes the user account and the security data.
By using the service work that the telecommunication bureau provides caller information to subscriber (inserts caller number and other relevant information between the first and the second ringing of the subscriber terminal), this scheme sets up a platform using binary frequency shift keying (FSK) decode technique on the subscriber side, receives the caller (reporting side) telephone number, then through the data base in the service equipment, finds the caller (reporting side) material and information, and chooses the corresponding police action plan.
This paper firstly described the basic principle of EPON, studying the realization of hardware and software of customer terminal device on EPON which is called Optical Network Terminal, and discussed many problems in developing ONT, at last it introduced market report and anticipation survey of EPON.
The paper uses the sensor network and random self-organized wireless communication network with multi-hop relay mode in order to send the sensed information to user terminals. This method can real time monitor various environmental information and accurately reflect the running status of equipment both on the surface and underground,thus improving the reliability and safety of the coal mine safety monitoring system.
When signals get to the antenna,RF deals with them and then broadband A/D switches them to digital data. After that,FPGA(Field Programmable Gate Array) modules realize all the necessary signals processing. Then,the disposed data are converted by D/A and send to the user terminals.
This proposed scheme can be used to schedule and retransfer the packets from the different priority classers according to different delay requirements among the Master Access Points (MAP) and User Terminals (UT).
In this paper we analyse the performance of a new pointer-based medium access control protocol that was designed to significantly improve the energy efficiency of user terminals in wireless local area networks.
A model is discussed that describes the type and number of interactions between user terminals and printers and the central processor for a comprehensive, integrated medical information system.
An important assumption is that nomadic user terminals attached to a particular segment should be able to exchange information with any other terminal connected to the network.
Multimedia end-user terminals are expected to perform advanced user interface related tasks.
Connection between user terminals and the PSTN is established through fixed terrestrial gateways via a constellation of low earth orbiting (LEO) satellites.