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To: cs551@merlot.usc.edu
Subject: Re: Example of Ad-hoc network
Date: Thu, 04 Dec 2008 17:10:55 -0800
From: Bill Cheng <william@bourbon.usc.edu>

Someone wrote:

  > Sorry for the miss-communication.  I was actually asking if you
  > would consider it as an example of ad-hoc computing.  On the web
  > site it says that it is based on 802.11s.
  > 
  > My understanding of the project from following the news about it
  > is as follows:
  > The OLPC initiative is to provide laptops to children in
  > developing countries.  The laptops are designed to be rugged and
  > have low power consumption.  They connect to each other if they
  > are in range, allowing the children to communicate and share
  > information and learn together.  The idea is to allow them to
  > create a 'mesh' network.  If one computer was connected to the
  > Internet, it would allow all the others to access through it's
  > connection.

I don't know the details about it.  From scanning the wiki
page, looks like it qualifies as a Ad hoc network.  The nodes
can address each other and there is a routing protocol to
route packets in a multi-hop fashion.  The wiki page does not
talk about mobility.  I assume that when nodes move around,
it tries to stay connected.
--
Bill Cheng // bill.cheng@usc.edu <URL:http://merlot.usc.edu/william/usc/>




  ----- Original Message -----
  From: Bill Cheng <william@bourbon.usc.edu>
  Date: Thursday, December 4, 2008 12:53 am
  Subject: Re: Example of Ad-hoc network
  To: cs551@merlot.usc.edu
  
  > Someone wrote:
  >
  >  > Wouldn't the behavior of the OLPC mesh network be a good example
  >  > of ad-hoc computing?
  >  >
  >  > http://wiki.laptop.org/go/Mesh_Network_Details
  >  >
  >  > When you brought up the subject, the first two things I thought
  >  > of were the military sensor networks, and the
  >  > One-laptop-per-child initiative.
  >
  > Are you asking about why the lecture slides said that there
  > are no non-military *applications*?
  >
  > I'm not familiar with the OLPC mesh network.  Do you know
  > what is the killer app for this network?
  > --
  > Bill Cheng // bill.cheng@usc.edu
  > <URL:http://merlot.usc.edu/william/usc/>