RE: [manet] Hiden- & exposed terminal problem in MANET

["Mullen, John P. (Contractor)" <mullenjp.contractor@trac.wsmr.army.mil>]

Sorry about this, but I just got an image of people walking around with
little log-periodic antennas (they would have to be about five inches high)
on their heads connected to little motors that rotate them.

It would be an interesting fashion statement.  Maybe the next status symbol?

:-)

John Mullen

-----Original Message-----
From: David Young [mailto:dyoung@ojctech.com]
Sent: Thursday, September 19, 2002 12:48 PM
To: manet@ietf.org
Subject: Re: [manet] Hiden- & exposed terminal problem in MANET



On Thu, Sep 19, 2002 at 01:53:08PM -0400, Phillip Neumiller wrote:
> The solution to hidden nodes is MUCH easier.  Get rid of the omni
> antennas and hidden node, exposed node, self-interference all go
> away.  This is easier said than done.  This is the "real" solution
> since it gets rid of the problem rather than dancing around it
> at the MAC layer with RTS CTS handshaking.  
> 

Phillip,

What omni replacement do you have in mind?  How does it solve the
problem? Do you have in mind a so-called "smart antenna" whose beam can
be pointed by software?

Dave

-- 
David Young             OJC Technologies
dyoung@ojctech.com      Engineering from the Right Brain
                        Urbana, IL * (217) 278-3933
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