Hi Nahr,

When your neighbor can see you, that means you can also see it, isn't
it?? Secondly, if you are in the transmitting range of your neighbor
then isn't your NEIGHBOR definitely in you range??

 

Cheers,

 

Varun Jain

 

 

From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Nahr
...
Sent: Thursday, July 17, 2008 2:04 AM
To: tinyos-help
Subject: Re: [Tinyos-help] Discovering Neighbors

 

Hi,
I mean that I am in his Tx range but him not (in mine). 
Although, your answer is convenient.
Thanks a lot

Nahr Elk

2008/7/16 Omprakash Gnawali <[EMAIL PROTECTED]>:

On Wed, Jul 16, 2008 at 5:40 AM, Nahr ... <[EMAIL PROTECTED]> wrote:
> Hi all.
>
> I remarked in CTP protocol that a node discovers its neighbors from
received
> messages.
> But there is a case in which my neighbor could see me so I can receive
his
> messages but him not so he can't receive msg from me
> consequently, why should I put him in my neighbor table?

This description of the scenario is unclear - your neighbor could see
you so you can receive his messages? That does not make sense. If your
neighbor could see you, that means your neighbor could receive your
message.

If you are talking about a scenario in which there is no
bi-directional link, although such links are not useful for CTP, the
only way to determine that a link is not bi-directional is by
maintaining some state about the link. So you have to insert the
neighbor into the table.

- om_p

 

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