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Thread: IEEE 802.15 Working Group for WPAN

  1. #1
    Join Date
    Sep 2010
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    19

    IEEE 802.15 Working Group for WPAN

    We have been told to write an assignment on IEEE 802.15 Working Group for WPAN. But frankly speaking, I am not much idea about it. I know that The 802.15 Working Group takes care in general to wireless personal area networks (WPAN), the project group 4 at low-rate wireless PANs. So thought that you guys would be helpful for me. Please provide some information that is related to the topic. Any additional information about an IEEE 802.15 would be appreciable.

  2. #2
    Join Date
    Feb 2008
    Posts
    130

    Re: IEEE 802.15 Working Group for WPAN

    It has been found to be specific standard, the extremely wide acceptance encounters and the many records on the network - transport and application-level build. In two other working groups 802.15.4a and 802.15.4b are currently working on more features in the area of security and network management and additional physical transfer mechanisms. Here the different development directions ranging from higher bandwidth in the sub-gigahertz range of Chirp Spread Spectrum (CSS) to ultra-wideband (UWB) approaches.

  3. #3
    Join Date
    Feb 2009
    Posts
    72

    Re: IEEE 802.15 Working Group for WPAN

    The ZigBee Alliance is in the range of short-range wireless networks remains the organization that attracts the most interest and the largest community in itself. In many places the term ZigBee is used as a synonym for these networks. ZigBee is the name derives from the way of the zigzag dance of the bee, in this way their fellow informs the way to the next food source. Similarly, the data is then passed through the net. The first version of the ZigBee standard was adopted after much discussion in December 2004. It covers essentially the network - and the application layer. This allows the ZigBee standard at the network level, the use of meshed independently and routed networks. The standardization of the application layer allows potentially interoperability between different manufacturers. In addition, a very elaborate, but complete security functionality is described. The ZigBee approach is characterized by a very early start and a very wide, multi-vendor approach. This, however, unfortunately, in some places significantly slowed development and decision-making, so that leaner, vendor-specific alternatives on the market today also successful. Nevertheless, for IEEE802.15.4 and ZigBee-compliant products are numerous developments of large hardware and software manufacturers.

  4. #4
    Join Date
    Oct 2008
    Posts
    161

    Re: IEEE 802.15 Working Group for WPAN

    Z-Wave is a proprietary technology of the first US-Danish manufacturer Zensys A / S, which increasingly sought as part of an overall Z-Wave Alliance status to obtain a general. The technology is based on a given IC, and building on it also to the higher protocol layers. The central part of the Z-Wave technology is a two-way communication protocol with mesh networking capability. The bandwidth is 9.6 kbit / s. To ensure signal despite disturbances (noise, distortion) is a secure and reliable data transmission, Z-Wave has a 2-way acknowledgment and a fixed frame format, and a random back-off algorithm. The mixture of Z-Wave is held generally very lean and efficient. So far, several manufacturers for home this proprietary technology have chosen. Since the certification has not been strictly enforced, is the interoperability for most products is still pending.

  5. #5
    Join Date
    Mar 2008
    Posts
    151

    Re: IEEE 802.15 Working Group for WPAN

    A completely new approach uses the EnOcean resulting from the Siemens research has emerged as a spinoff. This has been particularly dedicated to the issue of energy supply since it was detected even with long battery life ranging from a few years ago as a problem, if hundreds of installed battery-powered radio nodes in the house. Therefore, the engineers have developed EnOcean energy converters that allow the conversion of energy from the environment. The currently most important component is a piezoelectric transducer that can be used for example in a completely autonomous light switch and batteries completely unnecessary. These converters are equipped with special radio technology, which bypasses economical with the very small portions of energy. With this approach, the company has identified a worldwide market leadership and is currently the only manufacturer that can supply such products in quantities.

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