On Sat, 16 May 2009 08:03:27 -0700 (PDT), julius <juliusk@gmail.com>
wrote:

>On May 16, 10:49*am, "cfy30" <cf...@yahoo.com> wrote:
>> Hi all,
>>
>> I am working on the coexistence study between BT and WLAN. Anyone knows
>> where are the spec on modulation and pulse shaping for BT and 802.11 a, b,
>> g WLAN?
>>
>> cfy30
>
>I don't know what BT is but for 802.11 standards, you can either read
>about
>it on good ole wikipedia or read the actual standards. If you don't
>know yet,
>they are available for free.
>
>http://en.wikipedia.org/wiki/802.11
>http://ieee802.org/11/

Or here:

http://standards.ieee.org/getieee802/portfolio.html

BT is 802.15.

The waveforms aren't even close to compatible, so the general means of
sensing each other for avoidance is just energy detection. Since the
ISM band is unlicensed energy detection is more general, anyway, since
an interferer may be a cordless phone or any other device compliant to
the ISM rules.

Eric Jacobsen
Minister of Algorithms
Abineau Communications
http://www.ericjacobsen.org

Blog: http://www.dsprelated.com/blogs-1/hf/Eric_Jacobsen.php