[Tinyos-help] [application : TREE]

[vazoumana fofana]

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" <obernardo at gmail.com>
>To: "vazoumana fofana" <zoumlander at hotmail.com>
>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 <zoumlander at hotmail.com>:
>>
>>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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>
>
>
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