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RE: Ad hoc group on evaluation - Soliciting contributions to developing Usage Models/Scenarios



Title: Message
Hi Nada and all,
 
I thought the discussion was concluded that we need some basic set of scenarios to help us deciding what/how many call flows diagrams to provide.
 
However, it seems that the usage scenarios mentioned in the below e-mail are some specific scenarios for simulation/implementation with some specific details, e.g. application, traffic characteristic, performance measures. I think that is beyond what we need at this stage, instead is more for what you said "at a later stage - after harmonization has occurred"  What's more I think it would be hard for the group to agree on the details of the scenarios at this stage, e.g. 1, 4&5 of your list, since there could be many variations of those parameters which are upto deployment and implementation.
 
So, I feel we should concentrate more on the basic of the scenarios, e.g. what is the network relationship, who initiates the handover (e.g. network init, terminal init), i.e. item 2 & 3 and others. How do you think about this?
 
Cheers
 
Cheng Hong
 
 
 
-----Original Message-----
From: owner-stds-802-21@listserv.ieee.org [mailto:owner-stds-802-21@listserv.ieee.org] On Behalf Of Nada Golmie
Sent: Wednesday, December 08, 2004 6:52 AM
To: stds-802-21@listserv.ieee.org
Cc: Nada Golmie
Subject: Ad hoc group on evaluation - Soliciting contributions to developing Usage Models/Scenarios

Dear all,

To follow-up on our telecon discussion this morning, the evaluation ad hoc group would like to solicit volunteers to develop
a set of usage case models & scenarios to be included in the evaluation guidelines document.

Although the consensus was that no performance analyses, modeling, and simulation results will be required for the proposal
down-selection process, there is some value to develop template scenarios in order to allow for simulation  modeling / prototype implementation at a later stage - after harmonization has occurred.

Usage scenarios should include enough details to allow for an experimenter to collect performance measures using either simulation, mathematical modeling, or prototype implementation, to replicate and compare results.

Typically usage scenarios consist of::

1) Description of the application or traffic characterization: e.g. voice, video, file transfer, email, etc.
2) Network topology: number, type, location, coverage of access networks (802.11, 802.16, cellular, etc.), location of mobile node or multi-interface terminal (distance from access network).
3) Mobility or handover model : description of  a path  from one access network to the other.
4) Meta usage models eg. residential, office, airport, train., that would associate a set of parameters to the above  three elements.
5) Performance measures
6) whatever else you think may be needed

If you're interested in contributing to this effort please send your thoughts to the reflector.

Reijo Salminen has graciously agreed to consolidate the ideas and input received and fold that into a section on
usage scenarios in the evaluation guidelines document.

Best Regards,

nada
--
Nada Golmie, Ph.D.
Manager, High Speed Network Technologies Group
National Institute of Standards and Technology
100 Bureau Dr. Stop 8920
Gaithersburg, MD 20899
Email: nada@nist.gov
Phone: (301) 975-4190
Fax:   (301) 590-0932
Web: http://w3.antd.nist.gov