Report Results

Documents matching: Global, Broadband - Wireless, Technical Reports

1 to 9 of 9

• Technology - Wireless - Broadband 1 - RFID, Near Field and 802-15 ZigBee

  Wireless data technologies range from short-range low-speed to metropolitan-scale broadband networks. Here we discuss Radio Frequency Identification (RFID), Near Field Communications (NFCIP-1), and the low-power automation wireless protocols 802.15.4 ZigBee, Z-Wave, ANT and En-Ocean.

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  Last Updated: Tuesday, 16 December 2008
  Archived: No
  Number of Pages: 13

• Technology - Wireless - Broadband 2 - Bluetooth

  Bluetooth is a mature, widely used, moderate speed personal area networking system suitable for handheld devices. This report discusses Bluetooth 1.2, 2.0, 2.1, Bluetooth Low Energy (previously Wibree) its security, simple pairing arrangements and likely future with WiMedia Ultra-Wideband. We also compare Bluetooth with ZigBee, Z-Wave and ANT.

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  Last Updated: Tuesday, 16 December 2008
  Archived: No
  Number of Pages: 12

• Technology - Wireless - Broadband 3 - Ultra-Wideband-&-WirelessHD-60GHz

  This report discusses two very high speed data communication technologies with ranges up to 10 metres: WiMedia Ultra-Wideband in the 3.1 to 10.6GHz range, and several approaches to millimetre wave communications at 60GHz, including the work of the WirelessHD Consortium, ECMA TC48 and IEEE Task Group 802.15.3c and Working Group 802.11. These technologies promise to revolutionise high-speed communications between mobile devices and home A/V devices.

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  Last Updated: Tuesday, 16 December 2008
  Archived: No
  Number of Pages: 12

• Technology - Wireless - Broadband 4 - 802-11 & HiperLAN

  This report discusses the key technical characteristics of IEEE 802.11 - the most significant medium range wireless technology. The three varieties b and g at 2.45GHz and a at 5GHz are described. The two other medium range technologies - HiperLAN2 and HiSWANa - are also discussed.

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  Last Updated: Tuesday, 16 December 2008
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  Number of Pages: 10

• Technology - Wireless - Broadband 5 - 802-11 QoS, MIMO & Propagation

  This report discusses 802.11’s new QoS arrangements (WMM) and enhancements for greater performance using MIMO (Multiple In Multiple Out) multi-antennae systems using 802.11n. We discuss the behaviour of 2.45 and 5GHz microwaves, with special reference to outdoor propagation, polarisation, point-to-point links, antennae and the Fresnel zone.

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  Last Updated: Tuesday, 16 December 2008
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  Number of Pages: 11

• Technology - Wireless - Broadband 6 - 802-11 Applications & VoWLAN

  This report discusses 802.11 hardware and both distributed and centralised architecture for WLANs. 802.11’s use in hotspots, roaming to other services and for Wireless ISPs are also discussed. We also review 802.11n, r and e and the key difficulties in achieving high quality Voice over Internet Protocol over WLAN (VoWLAN).

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  Last Updated: Tuesday, 16 December 2008
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  Number of Pages: 10

• Technology - Wireless - Broadband 7 - Mesh & UHF White Space Rural Networks

  Mesh networking and new “cognitive radio” techniques using “white space” UHF TV channels promise new models of wireless broadband service provisions, particularly in rural and remote areas. We review these technologies and consider the prospects for their widespread adoption, particularly in the UHF band as part of the “Digital Dividend” resulting from the digitisation of broadcast television.

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  Last Updated: Monday, 15 December 2008
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  Number of Pages: 11

• Technology - Wireless - Broadband 8 - 802-16 WiMAX PHY

  This report provides an overview of the IEEE 802.16 standards and the role of the WiMAX Forum in defining profiles for these standards, testing equipment and developing higher level network protocols. We describe techniques of the mobile 802.16e standard, including OFDMA, sub-channelisation, fractional frequency reuse, hybrid automatic repeat request and turbo coding.

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  Last Updated: Tuesday, 16 December 2008
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  Number of Pages: 14

• Technology - Wireless - Broadband 9 - 802-16 WiMAX MAC

  We describe more of WiMAX’s advanced techniques, including: multicasting, mobile broadcasting, fast base-station switching, macro diversity handoff, sleep and idle modes, and multi-antennae techniques including MIMO, Space Time Coding and Adaptive Antenna Systems. We review WiBro, 802.16m, 802.20, WiMAX chipsets, competing technologies and discuss WiMAX’s prospects in licensed and unlicensed spectrum.

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  Last Updated: Tuesday, 16 December 2008
  Archived: No
  Number of Pages: 15