[6lowpan] Re: [RSN] Re: Routing in L2N presentation file

JP - great presentation.   I hope that it was well received.  I'm very 
supportive of everything in that document, with one exception.  There is 
one assumption that I believe is potentially fatal to the entire 
6lowpan/rsn effort in ietf.  On slide 11 you state "Research has focused 
on near-optimal solutions to specific problems", and then in bold "IP is 
maximizing interoperability, not aiming at finding a local optimum 
;-)".  I agree with the second statement, but the first one is flat out 
wrong.
Very few people in sensor network research seem to care about 
near-optimal solutions.  Consider one of the best-received papers 
[Kim07] at the recent IPSN conference.  Note that the authors are 
leaders in the field, this is a respected conference, one of the better 
papers, and this is the dissertation work culminating four years of 
research on this project.  The paper presents the best academic work to 
date on reliable multi-hop data collection, MP2P.  The payload goodput 
in this network was 1.4% of the channel bandwidth, at 100% radio duty 
cycle.  This is not "near-optimal" in any sense that I know.

If we start with 1.4%, and then degrade that so that we can maximize 
interoperability, we'll be left with something that no one will use.  We 
have an opportunity to do this right - let's not fall victim to the 
Zigbee-esque assumption that all we need to do is define *something* and 
adoption will be automatic.

ksjp

[Kim07] Kim, Pakzad, Culler, Demmel, Fenves, Glaser, Turon, "Health 
Monitoring of Civil Infrastructures Using Wireless Sensor Networks", IPSN07.

JP Vasseur wrote:
> Hi Ved,
>
> On Jul 25, 2007, at 10:59 AM, Ved Kafle wrote:
>
>> Hi JP,
>>
>> Is it possible to get the presentation file you used in the routing area
>> meeting?
>> I could find it on the web.
>>
>
> I was about to do so, here it is:
> We'll soon have a Web Page to point to for RSN related work.
>
> Thanks.
>
> JP.
>
>> Ved Kafle
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>
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