Thanks MIchael.
I have read your experiment report. According to my experiments, I got much less msg loss and lower delay. But I modified the lower-layer tinyos code a bit. I did not do rigorous tests and not record the data. There are still two parameters that our experiments cannot give good answer:
1. data rate (your tests indicated an even lower rate than mine since CSMA-CA was involved)
2. timer accuracy: I used to set 1-3ms between successive msgs, and I am not confident with the micaz timers when the timing interval is very short.
Tie
On 11/6/06, Michael Schippling <[EMAIL PROTECTED]> wrote:
I did some mica2,z testing last year:
http://www.etantdonnes.com/Motes/report_micaz/
but have recently been made aware that I may have been
UART speed limited when doing the 'Z tests.
MS
Tie Luo wrote:
> micaz and telosb use CC2420 as their transceiver, and in cc2420 data
> sheet the data rate is said to be 250kbps.
> I did a measurement and found the rate was much lower; less than 150kbps.
> Who else also did such measurements? Would like to hear your results.
>
> p.s. the accuracy of timer is also involved, but not sure how accurate a
> millisec timer is. would like to hear comments.
>
> --
> Regards,
> Tie
>
>
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Regards,
Tie
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