Changes between Version 1 and Version 2 of 802.11/Resources


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Timestamp:
Jul 30, 2013, 11:11:28 AM (11 years ago)
Author:
murphpo
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  • 802.11/Resources

    v1 v2  
    11[[TracNav(802.11/TOC)]]
    22= 802.11 Reference Design: Resources =
     3In the course of developing and testing the 802.11 Reference Design we have found a number of very useful resources. Nothing below is required to use or extend the Reference Design, but, depending on your application, some of these resources may prove useful.
     4
    35== Wireshark ==
    46
    … …  
    1921== Oscilloscope ==
    2022
    21 The 802.11 Reference Design routes a number of useful MAC/PHY signals to the WARP v3 debug header. These signals can be observed in real-time with an oscilloscope (probably also with a fast-running self-clocked logic analyzer; we haven't tried this).
     23The 802.11 Reference Design routes a number of useful MAC/PHY signals to the WARP v3 debug header. These signals can be observed in real-time with an oscilloscope (probably also with a fast-running self-clocked logic analyzer; we haven't tried this). Observing MAC and PHY states directly via the debug pins is very useful for monitoring behaviors without impacting their timing.
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     25The current mapping of MAC/PHY signals to the debug header are listed in the [wiki:../Usage Usage] section of this user guide.
     26
     27== Docs ==
     28
     29Obviously the definitive guide to 802.11 is the official [url=http://standards.ieee.org/getieee802/download/802.11-2012.pdf]IEEE 802.11-2012 specification[/url]. This is a giant document (2700+ pages), only some of which is relevant to implementing and understanding the MAC/PHY in our Reference Design.
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     31The following clauses of IEEE 802.11-2012 are especially relevant to our design:
     32 * Clause 7: PHY Service Specification - defines the basic control I/O between the MAC and PHY
     33 * Clause 8: Frame Formats - defines the contents of various frames (control, management and data)
     34 * Clause 9.3: Distributed Coordination Function - defines the CSMA/CA random access MAC protocol
     35 * Clause 16: DSSS PHY Specificaton - defines the DSSS physical layer, of which we implement only the 1Mb/s receiver
     36 * Clause 18: OFDM PHY specification - defines the SISO OFDM physical layer, including the preamble structure and SIGNAL field definition
     37 * Annex L: Example of encoding a frame for the OFDM PHY
     38
     39We also found the MAC and PHY chapters of  O'Reilly's [http://shop.oreilly.com/product/9780596001834.do?sortby=bestSellers 802.11 Wireless Networks: The Definitive Guide] to be a good resource. It presents the same core info as the spec but in a much more readable form.
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