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Re: [Roll] "Node energy" as a metric for MRHOF

JP Vasseur <jpv@cisco.com> Sat, 02 June 2012 14:25 UTC

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From: JP Vasseur <jpv@cisco.com>
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Date: Sat, 02 Jun 2012 16:22:00 +0200
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To: Ralph Droms <rdroms.ietf@gmail.com>
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Cc: draft-ietf-roll-minrank-hysteresis-of@tools.ietf.org, roll@ietf.org
Subject: Re: [Roll] "Node energy" as a metric for MRHOF
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Thanks Ralph. When you say "path cost based on node energy", you refer to using a cumulative metric where node metric are inversely 
proportional to the remaining energy ? I am asking since there are several approaches to compute the metric, it could be coupled with 
the remaining energy used as a constraint, …
Thanks.

JP.

On Jun 1, 2012, at 9:53 PM, Ralph Droms wrote:

> I came across a new puzzle while re-reading draft-ietf-roll-minrank-hysteresis-of.
> 
> "Node energy" doesn't appear to be listed as an additive metric in RFC 6551.  Reading the description of the node energy metric, which carries remaining battery capacity as a percentage of initial capacity, I have no clue how a node using MRHOF would compute a path cost based on node energy.  Does node energy really fit as one of the metrics that MRHOF can use?
> 
> - Ralph
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