Bluetooth wireless

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  • Bluetooth wireless technology is a short-range radio standard that provides new opportunities for wireless devices. Originally, Bluetooth wireless technology was designed as a way of eliminating the cables attached to nearly all consumer electronic devices. However, the goals for Bluetooth wireless technology grew as its designers recognized that it enables a new kind of wireless network between electronic devices

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  • Bluetooth wireless technology is gradually becoming a popular way to replace existing wireline connections with short-range wireless interconnectivity. It is also an enabling technology for new types of applications. In this chapter we give a short background and a condensed description of how the Bluetooth sys- tem works. We will focus on details that directly or indirectly relate to security issues and on the functionality that is important in order to understand the con- cept of the technology. The reference documentation for Bluetooth wireless technology is [1]....

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  • Chapter 6 - Wireless internet and m-business. In this chapter we will discuss: Wireless devices, m-business, wireless internet access, wireless web technology, software applications for wireless devices, wireless local area networks (WLANs), bluetooth, wireless communications, location tracking, future of wireless internet.

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  • Bluetooth là một đặc tả công nghiệp cho truyền thông không dây tầm gần giữa các thiết bị điện tử. Công nghệ này hỗ trợ việc truyền dữ liệu qua các khoảng cách ngắn giữa các thiết bị di động và cố định, tạo nên các mạng cá nhân không dây (Wireless Personal Area Network-PANs).

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  • An invaluable confusion-lifting tutorial on Bluetooth, the personal area wireless networking standard that enables seamless communication of voice, e-mail, internet access, etc., between mobile phone, desktop PCs, and PDAs. *Details the pros and cons of the Bluetooth approach, taking readers through what kinds of services are ideally suited to Bluetooth. *A must for telecom engineers, managers, technicians, ISPs, and employees of the 1000+ Bluetooth Special Interest Group (SIG) companies, this guide also features sweeping coverage of applications and forthcoming products...

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  • Data Communications and Networking, 3/e provides a comprehensive and current introduction to networking technologies. The book is accessible to students from all backgrounds and uses hundreds of figures to visually represent concepts. The new edition has been completely updated to reflect the constantly changing world of network technologies. Enhanced coverage of bluetooth, wireless, satellites, as well as four new chapters on security have been added. The third edition has transitioned from using the 7-layer OSI model to the 5-layer Internet Model.

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  • Mobile and Wireless Communications have been one of the major revolutions of the late twentieth century. We are witnessing a very fast growth in these technologies where mobile and wireless communications have become so ubiquitous in our society and indispensable for our daily lives. The relentless demand for higher data rates with better quality of services to comply with state-of-the art applications has revolutionized the wireless communication field and led to the emergence of new technologies such as Bluetooth, WiFi, Wimax, Ultra wideband, OFDMA.

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  • Welcome to Wireless Home Networking For Dummies. Wireless networking for personal computers is not really a new idea; it’s been around for at least five years. The emergence of an industry standard, however, has caused the use of wireless networking technology to explode. One of the most appealing things about the current crop of wireless networking equipment is the ease with which you can set up a home network, but its reasonable price might be the most attractive aspect of all. Setting up a wireless home network can be both inexpensive and easy.

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  • Wireless networks technologies have been dramatically improved by the popularity of third generation (3G) wireless networks, wireless LANs, Bluetooth, and sensor networks

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  • Wireless communication slowly is becoming reality. In a wireless world, a printer is installed automatically after it is turned on; keyboard and mouse cables no longer become hopelessly tangled; Palm Pilots and mobile telephones automatically synchronize and communicate. Providing this sort of seamless, wireless communication--at a low cost--is the goal of Bluetooth technology. Devices that support Bluetooth automatically communicate with one another when they come within a 30-foot range of each other.

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  • Bluetooth is an open standard for short-range radio frequency (RF) communication. Bluetooth technology is used primarily to establish wireless personal area networks (WPAN), commonly referred to as ad hoc or peer-to-peer (P2P) networks. Bluetooth technology has been integrated into many types of business and consumer devices, including cellular phones, personal digital assistants (PDA), laptops, automobiles, printers, and headsets. This allows users to form ad hoc networks between a wide variety of devices to transfer voice and data.

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  • Outline of lecture 8: bluetooth has general characteristics, piconets & scatternets, basic access scheme, baseband (mac layer), higher layer protocols, profiles and versions; zigbee has zigbee vs. IEEE 802.15.4, architecture & topologies, IEEE802.15.4 MAC  layer.

     

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  • Công nghệ thông tin ngày nay có vai trò rất quan trọng trong cuộc sống hàng ngày của chúng ta. Hiện nay có rất nhiều công nghệ mới phát triển song song với việc phát triển công nghệ thông tin như Bluetooth, Wireless, WAP, SOAP,… nhằm giúp công nghệ thông tin ngày càng thân thiết với người dùng hơn. Một trong những công nghệ góp phần không nhỏ trong việc kết nối con người với thông tin cũng như con người với con người là công nghệ di động....

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  • Công nghệ thông tin ngày nay có vai trò rất quan trọng trong cuộc sống hàng ngày của chúng ta. Hiện nay có rất nhiều công nghệ mới phát triển song song với việc phát triển công nghệ thông tin như Bluetooth, Wireless, WAP, SOAP,… nhằm giúp công nghệ thông tin ngày càng thân thiết với người dùng hơn.

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  • Over the past decade, there has been a prolific increase in the research, development and commercialisation of Wireless Sensor Networks (WSNs) and their associated technologies (see Figure 1). This rise has been a result of a number of contributing factors, including continued miniaturisation (leading towards an era of truly ‘pervasive’ and ‘invisible’ computing); low-power circuits, devices and computation (for example, the ultra-low-power sleep states now found in microcontrollers); and efficient short-range communication (such as ZigBee and Bluetooth).

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  • 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....

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  • Tất cả mọi thứ bạn cần biết về Bluetooth, LMDS, 802.11, và các tiêu chuẩn được ưa thích khác • Hoàn thành Bảo hiểm cố định không dây, không dây di động, và Công nghệ không dây quangVới hơn 1.500.000 bản sao của chúng tôi MCSE, MCSD CompTIA

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  • đó là daisy-xích thông qua tất cả các mô-đun I / O § Khi được yêu cầu mô-đun, nó sẽ đặt vector (hoặc một địa chỉ I / O, hoặc ID một CPU sử dụng như một con trỏ đến Bluetooth, phổ biến nhất của WPAN công nghệ được quy định bởi các tiêu chuẩn IEEE 802,15.

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  • "Bluetooth (enabled devices) will ship in the billions of units once it gains momentum." - Martin Reynolds, Gartner Group Bluetooth is the most exciting development in wireless computing this decade! Bluetooth enabled devices can include everything from network servers, laptop computers and PDAs, to stereos and home security systems. Most Bluetooth products to hit the market in 2001 will be PC cards for laptop computers and access points, which allow up to seven Bluetooth devices to connect to a network.

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  • Ví dụ, Bluetooth bước nhảy khoảng 1600 lần mỗi giây, trong khi công nghệ HomeRF (một băng rộng công nghệ WLAN) bước nhảy khoảng 50 lần mỗi giây. Cả hai của các công nghệ này thay đổi rất nhiều từ 802,11 tiêu chuẩn WLAN, thường bước nhảy 5-10 lần mỗi giây.

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