On Mar 7, 2007, at 5:02 AM, Senol Zafer ERDOGAN wrote:
Hi all,
I am working on TinyOS just a couple of week and there is one point
that i still not understand.
How is the LQI data calculated by the mote? i guess when the
packet is sent, mote doesnt add the LQI data to the packet. because
the mote doesnt know the link quality at first, right? So when the
other mote received the packet, we can take LQI data in the Packet.
How is the LQI data calculated and is given us?
The CC2420 radio hardware generates it. There are a lot of
discussions of this in the archive: it's an estimate produced by the
soft chip decisions of the first eight symbols of the 802.15.4 frame.
Phil
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