[Tinyos-help] low power listening in tinyos-2.x for CC2420 ?

[Diego Bartolomé Arquillo]

Hi Avinash,
Low power listening have not sense using CC2420 because this chip is compliant with the standard IEEE 802.15.4. This standard defines a 4 bytes preamble length and LPL needs a long preamble in order to work properly. The CC1000 is not compliant with 802.15.4 and allows you to change the preamble length. When you send a packet using LPL, a long preamble is transmitted. The recipient of the packet is idle and periodically it scans the channel to look for a packet. If the preamble and the period are adapted, the recipient can receive the useful information of the packet.
Best regards,
Diego

  _____  

De: tinyos-help-bounces at Millennium.Berkeley.EDU [mailto:tinyos-help-bounces at Millennium.Berkeley.EDU] En nombre de Avinash Sridharan
Enviado el: miércoles, 13 de septiembre de 2006 2:35
Para: tos
Asunto: [Tinyos-help] low power listening in tinyos-2.x for CC2420 ?


Hi,
 I am working with the tmote sky platform and running tinyos-2.x (beta 2) on it. I wanted to check with the community if there is low power listening support existing for CC2420 based platforms in tinyos-2.x. Low power listening was introduced as BMAC by Joe Polaster in tinyos-1.x for the CC1000 chips, but I could not find reference implementations of BMAC for CC2420 in tinyOS-2.x. Also if BMAC is not available for tinyOS-2.x (atleast in the near future) is it available as part of the Boomerang distribution. 

Thanks,
Avinash
-- 
Phd Dept. of Electrical Engineering
University of Southern California
http://www-scf.usc.edu/~asridhar 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mail.millennium.berkeley.edu/pipermail/tinyos-help/attachments/20060913/891848d9/attachment.htm