Xem 1-20 trên 113 kết quả Wireless protocols
  • Techniques for Effective Wireless Sniffing Understanding Wireless Card Operating Modes Configuring Linux for Wireless Sniffing Configuring Windows for Wireless Sniffing Using Wireless Protocol Dissectors Useful Wireless Display

    pdf104p sakuraphuong 16-05-2013 31 10   Download

  • As of November 8, 2010, Manually entered IP addresses are no longer supported on campus if the device is capable of using DHCP. This is true for normal dynamically assigned IP's and Static IP's. All NEW devices added to the network must be set to receive their network address via DHCP (Dynamic Host Configuration Protocol). This is the default setting for campus PC and Mac workstations and most printers. No user action is anticipated. There is no change or downtime expected for the vast majority of campus workstations or devices. We have made great efforts to put exceptions in place...

    pdf121p phuongdt2k7 26-03-2010 136 76   Download

  • Over the last ten years, the impact of wireless communications on the way we live and do business has been surpassed only by the impact of the Internet. Cell phones, pagers, and wireless Personal Digital Assistants (PDAs) have become so commonplace in our lives that it is easy to forget that ten years ago, they were a rarity.

    pdf409p mylinh 11-08-2009 108 57   Download

  • AD HOC NETWORKS: Technologies and Protocols is a concise in-depth treatment of various constituent components of ad hoc network protocols. It reviews issues related to medium access control, scalable routing, group communications, use of directional/smart antennas, network security, and power management among other topics. The authors examine various technologies that may aid ad hoc networking including the presence of an ability to tune transmission power levels or the deployment of sophisticated smart antennae. ...

    pdf295p ken333 06-07-2012 83 30   Download

  • Topology Control in Wireless Ad Hoc and Sensor Networks makes the case for topology control and provides an exhaustive coverage of TC techniques in wireless ad hoc and sensor networks, considering both stationary networks, to which most of the existing solutions are tailored, and mobile networks. The author introduces a new taxonomy of topology control and gives a full explication of the applications and challenges of this important topic.

    pdf282p ken333 06-07-2012 56 24   Download

  • Wireless Sensor Networks hold the promise of delivering a smart communication paradigm which enables setting up an intelligent network capable of handling applications that evolve from user requirements. With the recent technological advances of wireless sensor network, it is becoming an integral part of our lives. However, due to the nature of wireless sensor networks, researchers face new challenges related to the design of algorithms and protocols.

    pdf320p greengrass304 18-09-2012 57 18   Download

  • Wireless Sensor Networks (WSNs) can be defined as a self-configured and infrastructure-less wireless networks to monitor physical or environmental conditions, such as temperature, sound, vibration, pressure, motion or pollutants and to cooperatively pass their data through the network to a main location or sink where the data can be observed and analysed. A sink or base station acts likean interface between users and the network. One can retrieve required information from the network by injecting queries and gathering results from the sink.

    pdf319p namde01 11-04-2013 43 17   Download

  • This text examines all aspects of Wireless Application Protocol (WAP), particularly the hands-on development of WAP applications - an important area with regard to the success of WAP in the consumer marketplace. The book explains both the technical details behind WAP as well as the critical business issues related to its implementation.

    pdf289p ken333 06-07-2012 65 14   Download

  • If you want to deploy your own wireless network - at home or at the office you must first understand the capabilities and risks associated with the 802.11 protocols. And 802.11 Wireless Networks: The Definitive Guide, 2nd Edition is the perfect place to start. This updated edition covers everything you need to know about integrating wireless technology into your current infrastructure.

    pdf0p stingdau_123 19-01-2013 28 11   Download

  • Mobile telecommunications emerged as a technological marvel allowing for access to personal and other services, devices, computation and communication, in any place and at any time through effortless plug and play. This brilliant idea became possible as the result of new technologies developed in the areas of computers and communications that were made available and accessible to the user.

    pdf261p beobobeo 01-08-2012 24 9   Download

  • Since the fi nal decades of the twentieth century, data networks have known steadily growing success. After the installation of fi xed Internet networks in many places all over the planet and their now large expansion, the need is now becoming more important for wireless access. There is no doubt that by the end of the fi rst decade of the twentieth century, high-speed wireless data access, i.e. in Mb/s, will be largely deployed worldwide.

    pdf261p tailieuvip13 19-07-2012 27 6   Download

  • Wireless e-business allows people to communicate and transact in business via wireless technology, without physical connectivity, such as wires or cabling. Wireless e-business uses many devices, including mobile phones, pagers, palmpowered personal computers (PCs), pocket PCs, laptop computers, and other mobile devices or devices connected to the wireless networks

    pdf395p tailieuvip13 24-07-2012 32 6   Download

  • A wireless ad-hoc network is a wireless network deployed without any infrastructure. In such a network, there is no access point or wireless router to forward messages among the computing devices. Instead, these devices depend on the ad-hoc mode of their wireless network interface cards to communicate with each other. If the nodes are within the transmission range of the wireless signal, they can send messages to each other directly. Otherwise, the nodes in between will forward the messages for them. Thus, each node is both an end system and a router simultaneously....

    pdf172p crius75 02-01-2013 23 5   Download

  • In 1991, Mark Weiser described his vision of an emerging world of pervasive, embedded computation. He predicted “a physical world that is richly and invisibly interwoven with sensors, actuators, displays, and computational elements, embedded seamlessly in the everyday objects of our lives and connected through a continuous network.

    pdf425p japet75 30-01-2013 25 5   Download

  • Contents: WiMAX standards development, 3GPP standards development, OFDMA PHY basics, OFDMA frame structure, Protocol Stack architecture, Data pipes, WiMAX MAC PDU format, WiMAX Band width Management, WiMAX Scheduling Services.

    pdf21p cuonglanqaz 05-05-2015 14 5   Download

  • 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.


    pdf37p cuonglanqaz 05-05-2015 12 4   Download

  • WPA: A rush solution to the security problems of WEP WPA2: Based on 802.11i (official version) Encrypt and authenticate MSDUs: counter mode-CBC MAC protocol with AES-128 Authenticate STAs: 802.1X Initialization vectors transmitted in plaintext are no longer needed to generate per-frame keys But most of the existing Wi-Fi WPA cards cannot be upgraded to support 802.11i

    ppt28p muathu_102 28-01-2013 18 3   Download

  • Radio based communication, open air The attacker, having a radio transmitter and receiver with the same radio frequency of the underlying wireless network, can easily: Intercept wireless data Connect his computing devices to a nearby wireless network Inject new packets to an existing wireless network Jam a particular wireless channel using a jamming device Security measures Implement encryption algorithms, authentication algorithms, and integrity-check algorithms at the data-link layer Provide network access with wired equivalent privacy Higher-layer protocols and applications can be used ...

    ppt32p muathu_102 28-01-2013 18 2   Download

  • Chapter 3 - Underlying technology. Upon completion you will be able to: Understand the different versions of wired Ethernet, understand wireless Ethernet, understand the types of point-to-point WANs, understand the types of switched WANs, especially ATM, differentiate between repeaters, bridges, routers, and hubs.

    ppt54p tangtuy08 21-04-2016 3 1   Download

  • Upon completion you will be able to: Understand the different versions of wired Ethernet, understand wireless Ethernet, understand the types of point-to-point WANs, understand the types of switched WANs, especially ATM, differentiate between repeaters, bridges, routers, and hubs.

    ppt60p tangtuy09 26-04-2016 1 1   Download

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