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DSSS vs HR/DSSS

1 posts by 1 authors in: Forums > Wi-Fi Alliance Certifications & the 802.11 Standard
Last Post: June 12, 2008:
  • By Devinator
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    This is the final word on this topic.

    From the 802.11-2007 Standard:

    15.4.6.2 Number of operating channels

    (Clause 15 is for DSSS - 802.11)

    In a multiple cell network topology, overlapping and/or adjacent cells using different channels can operate simultaneously without interference if the distance between the center frequencies is at least 30 MHz.

    18.4.6.2 Number of operating channels

    (Clause 18 is for HR/DSSS - 802.11b)

    In a multiple cell network topology, overlapping and/or adjacent cells using different channels can operate simultaneously without interference if the distance between the center frequencies is at least 25 MHz.

    Also, please check out -

    "Adjacent Channel / Non-adjacent Channel / Overlapping Channel"

    - in this document:

    http://www.cwnp.com/exams/cwnp_exam_terms.pdf

    I have verified that the CWNA exam matches this information.

    Thanks,

    Devinator

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