Subject: Re: [manet] Is it difficult to receive simultaneously over multiplechannels?

From: [email-masked]
Date: Thu, 7 Oct 2004 17:01:52 +0200

> Joerg,
> 
> In your opinion, where lies the bottleneck in channel-switching speed?
> 
> Are you working with the Philips SA2400, by chance?
> 
> Dave

David,

I am with research not with our design team, also more on the protocol 
than the RF side.
The bottleneck is definitely the RF-side (on baseband-side you could do 
the switching very fast). In my understanding the problem is the VCO 
(synchronization to the new frequency, etc.).

Regards,
Joerg

David Young <[email-masked]>
Sent by: 
[email-masked]
07.10.2004 01:39

        To:     Joerg Habetha/ACN/RESEARCH/PHILIPS@PHILIPS
        cc:     [email-masked]
        Subject:        Re: [manet] Is it difficult to receive simultaneously over 
multiplechannels?
        Classification: 

On Wed, Oct 06, 2004 at 11:26:02AM +0200, [email-masked] wrote:
> Hi,
> 
> if you do not double your oscillator or even the complete tranceiver you 

> can assume a channel switching time of about 1ms.
> We have developed forwarding schemes that are based on frequency 
> switching. You use one frequency on the incoming hop and a different one 

> on the outgoing hop. The forwarder switches in-between the channels. 
Some 
> overhead is unavoidable due to the switching times.
> 

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