LPL has not been formally integrated into collection or dissemination. Your nodes' radios are off most of the time - in your case, they're asleep for about a full second before waking up momentarily to see if something else is talking. This naturally causes significant delays in getting a message to successfully traverse an entire network using dissemination.
A collection network sends out beacons periodically that wake up other nodes. Those nodes' radios may already be awake when your own message is transmitted next. This could explain a decrease in latency for a collection network vs. dissemination. Formally combining LPL + Collection / Dissemination is one of the next phases currently being researched and developed for TinyOS. If you make any headway, I think the majority of the community would be interested in hearing about your experiences. -David -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Christian Hermann Sent: Thursday, August 23, 2007 10:47 AM Cc: TinyOS Subject: [Tinyos-help] Low Power Listening not working with Dissemination??? Hallo, I'm using dissemination to send commands to the nodes and LQI collection to collect the data. All works fine without LPL (beside the fact that dissemination is a lot slower than collection with increasing node depth). But if I set LPL duty cycle to 1000 for example, commands need very long (several seconds) to reach its destination or even get lost completely quite often. Collection becomes a little slower, but still delivers data reliably with around 100ms total delivery time at node depth 2 or 3. (PS: I also activated PACKET_LINK layer) Does anyone know about issues with dissemination vs. LPL? Thanks Christian Gary Pan schrieb: > Hi all, > > Does anyone successfully use TinyOS plugin for Eclipse under linux machine? Every time I try to create an application, it could not get through. Is TinyOS plugin for Eclipse supported on Linux system? > > - Gary > > > --------------------------------- > Shape Yahoo! in your own image. Join our Network Research Panel today! > > > ------------------------------------------------------------------------ > > _______________________________________________ > Tinyos-help mailing list > Tinyos-help@Millennium.Berkeley.EDU > https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help -- ---------------------------- Christian Hermann Am Weinberg 9 08529 Plauen Fax +49 3741 470159 Tel +49 173 4020035 [EMAIL PROTECTED] http://www.christian-hermann.de _______________________________________________ Tinyos-help mailing list Tinyos-help@Millennium.Berkeley.EDU https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help _______________________________________________ Tinyos-help mailing list Tinyos-help@Millennium.Berkeley.EDU https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
