thanks for your answer.
it s a good idea to wait a random interval before sending : in this case ,
collisions in reception are quasi 0. it allows to treat messages ,update
fields and end receive treatment to treat other messages.
From: "Bernardo Avila Pires" <[EMAIL PROTECTED]>
To: "vazoumana fofana" <[EMAIL PROTECTED]>
Subject: Re: [Tinyos-help] [application : TREE]
Date: Wed, 11 Jul 2007 09:58:46 -0300
You could wait a random interval in each node before forwarding the packet.
I don't think various messages can be received simultaneously. What you can
do is treat the parenc change really fast and end the reception as quickly
as possible. Obviously you don't need to keep track of all the IDs
received,
but only the lowest.
2007/7/11, vazoumana fofana <[EMAIL PROTECTED]>:
Hello
i want to implement an application where in a network , the node with the
most little id is chosen like the root of a tree. At the begin, i init a
struct message with this field ( id , parent , hopcount) in flash for each
node. Then i send this struct in broadcast. After each node must compare
its
field and field received by other nodes. Iif its necessary , it updates
its
fields. I ve got a question : when a node receive serveral messages, what
happens ? indeed, a node must at the begin receive all neigbours' messages
to treat them. How can i answer to this problem, because there are somme
messages wich are gonna be lost ?
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