Wireless devices

CLDC (Connected Limited Device Configuration-Cấu hình thiết bị kết nối giới hạn): được thiết kế để nhắm vào thị trường các thiết bị cấp thấp (low-end), các thiết bị này thông thường là máy điện thọai di động và PDA với khoảng 512 KB bộ nhớ. Vì tài nguyên bộ nhớ hạn chế nên CLDC được gắn với Java không dây (Java Wireless ), dạng như cho phép người sử dụng mua và tải về các ứng dụng Java, ví dụ như là Midlet....

0p trannghiep1991 24-02-2012 150 63   Download

QUESTION 1: If one of the links to a computer on a physical star topology is served, what will be the result? A. The entire network will stop working. B. The affected link and the adjacent network links will stop working. C. Only the affected link will stop working. D. Only the adjacent links will stop working. Answer: C In the star topology each computer is connected to a central point by a separate cable or wireless connection. Thus each computer has a dedicated link to the network central device and a break in the link between a particular computer...

325p mebonmay89 28-09-2010 143 27   Download

Interface converter, for converting RS-232 to RS-422 and RS-485, with electrical isolation, 2 channels Bidirectional, wireless, 2400 MHz transmission system (European version), consisting of 2 transceivers (transmitter and receiver) and two antennas with connecting cable Fieldline Modular Wireless IO set, consisting of: Wireless IO base station for one Wireless IO terminal and Wireless IO device, 8 digital inputs, 8 digital outputs

23p buisontdtq 04-10-2012 53 9   Download

Lecture Electronic commerce - Chapter 9: Mobile Computing and Commerce and Pervasive learning objectives: Describe the mobile computing environment that supports m-commerce (devices, software, services). Describe the four major types of wireless telecommunications networks. Define mobile commerce and understand its relationship to e-commerce. Discuss the value-added attributes, benefits, and fundamental drivers of m-commerce. Discuss m-commerce applications in finance, shopping, advertising, and provision of content. Describe the application of m-commerce within organizations.

53p caphesuadathemtac 09-11-2021 23 3   Download

This thesis proposes and implements a new and novel solution on simulators and real devices to solve the mobility problem in a VPN. The new solution adds mobility support to existing L2TP/IPsec (Layer 2 Tunneling Protocol/IP Security) tunnels. The new solution tunnels Layer 2 packets between VPN clients and a VPN server without using Mobile IP, without incurring tunnel-re-establishment at handoff, without losing packets during handoff, achieves better security than current mobility solutions for VPN, and supports fast handoff in IPv4 networks.

123p runthenight07 01-03-2023 7 4   Download

In this thesis, focus on the wireless links between devices equipped by deployed operating personnel and intermediary access point infrastructure. We use multi-radio (MR) platforms, wireless devices with multiple and diverse transceiver technologies, to produce robust and reliable links through adaptive control of available transceivers. Primarily, we study the application of intelligent control techniques, namely reinforcement learning (RL), for adaptive control over diverse transceivers to achieve the desired robustness and reliability under dynamic environmental conditions.

185p runthenight04 02-02-2023 10 2   Download

Lecture Basic network management presents the following content: Hardware components, software and operating system, ethernet network overview, internet protocol address, LAN terminology and components, LAN architecture, Microsoft visio, service TCP/IP, LAN networking devices, building a local area network, monitoring network, firewall concepts, virus concepts, wan overview, building a wide area network, wireless concepts.

8p nhanmotchut_3 20-10-2016 76 2   Download

WAP, Wireless Application Protocol aims to provide Internet content and advanced telephony services to digital mobile phones, pagers and other wireless terminals. The protocol family works across different wireless network environments and makes web pages visible on low-resolution and low-bandwidth devices.

5p thachnq 03-06-2011 133 22   Download

Protocols for wireless applications Wireless data networks present a more constrained communication environment compared to wired networks. Because of fundamental limitations of power, available spectrum, and mobility, wireless data networks tend to have less bandwidth than traditional networks, more latency than traditional networks, less connection stability than other network technologies, and less predictable availability.

19p huggoo 20-08-2010 90 8   Download

Introduction to the Oracle Server Technologies avoids these issues by formatting a report’s output as XML tags. Any client can request an XML Publisher report and (provided it has an XML parser) display the results. This is the key to distributing reports over wireless protocols to any device, such as a cellular telephone. Oracle Discoverer is an end-user tool for report generation. Oracle Reports and XML Publisher need a programmer to design the report.

10p vongsuiphat 04-01-2010 169 27   Download

Introducing Bluetooth Applications notwithstanding, the added value from simply being wireless convinced consumers to try it and use it! However, for products that are inherently static, the added value may just be initial “desire” and not really a viable investment in both resources and dollars. Consider the static devices in our wired PAN (Figure 1.1)—for example, the ubiquitous mouse and keyboard. Both are dependant for their power supply requirements upon their host PC, so if made wireless, the subject of batteries becomes crucial....

10p thachsaudoi 23-12-2009 105 13   Download

Wi-Fi (pronounced /waɪfaɪ/) is a trademark of the Wi-Fi Alliance for certified products based on the IEEE 802.11 standards. This certification warrants interoperability between different wireless devices.

12p 34cdvt1 10-10-2009 152 35   Download