Re: [nwcrg] nwcrg Digest, Vol 42, Issue 7

[Marie-Jose Montpetit <[e-mail]>]

The Satcom report is interesting but does not address higher layers (they talk of traditional FEC) and of course the voice requirements are poorly met. 

I think the NC and advanced caching in the ICN model could yes address some operational issues (pre-staging). It would also be interesting to see how NC could support a more multipath solution (beyond multi-satellite) combining space and terrestrial solutions.

mjm 
> On Apr 25, 2017, at 4:59 AM, [e-mail] wrote:
> 
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>   1. Re: nwcrg Digest, Vol 42, Issue 4 (Emmanuel Lochin)
> 
> From: Emmanuel Lochin <[e-mail] <mailto:[e-mail]>>
> Subject: Re: [nwcrg] nwcrg Digest, Vol 42, Issue 4
> Date: April 25, 2017 at 4:56:55 AM EDT
> To: [e-mail] <mailto:[e-mail]>
> 
> 
> Dear Rolf,
> 
> Following your email you might be interested in this final report : 
> http://www.era.europa.eu/Document-Register/Documents/SRAIL-FNR-010-IND%20-%20FinalReport_v1.1_20170216.pdf <http://www.era.europa.eu/Document-Register/Documents/SRAIL-FNR-010-IND%20-%20FinalReport_v1.1_20170216.pdf>
> 
> EL
> 
> Le 25/04/2017 à 10:02, Rolf Sperber a écrit :
>> Hi Cedric,
>> 
>> there is a strong request from Deutsche Bahn to better enable internet access on fast moving trains. Your proposal CCN plus NC would be a good approach to solve this problem and I’d be very much in favor of you rewriting your paper as a draft. 
>> 
>> Best regards
>> 
>> Rolf
>> 
>> 
>> 
>> 
>> Rolf Sperber
>> Birkenstrasse 5
>> 76676 Graben-Neudorf
>> GERMANY
>> [e-mail] <mailto:[e-mail]>
>> Phone: [phone]
>> Mobile: [phone]
>> skype: rolf.rs01
>> 
>> Von: nwcrg <[e-mail] <mailto:[e-mail]>> on behalf of Cedric Westphal <[e-mail] <mailto:[e-mail]>>
>> Datum: Samstag, 22. April 2017 um 01:53
>> An: Marie-Jose Montpetit <[e-mail] <mailto:[e-mail]>>, "[e-mail] <mailto:[e-mail]>" <[e-mail] <mailto:[e-mail]>>
>> Betreff: Re: [nwcrg] nwcrg Digest, Vol 42, Issue 4
>> 
>> Hi Marie-Jose,
>>  
>> There has been a lot of work on network coding in ICN since our 2012 paper. We made an implementation using CCN that we described here for rate adaptive video streaming: https://users.soe.ucsc.edu/~cedric/papers/ramakrishnan2016adaptive.pdf <https://users.soe.ucsc.edu/%7Ecedric/papers/ramakrishnan2016adaptive.pdf>
>> If you think it would be interesting to write it up as a draft, I’d be willing to do it!
>> Best,
>>  
>> C.
>>  
>> From: Marie-Jose Montpetit [mailto:[e-mail] <mailto:[e-mail]>] 
>> Sent: Friday, April 21, 2017 4:23 PM
>> To: [e-mail] <mailto:[e-mail]>
>> Cc: Jesus Jimenez; Verizon; Lars Erup; Aneesh Dalvi; Brandon Williams; Prof. Jianping Wang; Ian Swett; Cedric Westphal; Dirk Trossen; Sheau Ng; Lars Eggert; Hannes Tschofenig
>> Subject: Re: nwcrg Digest, Vol 42, Issue 4
>>  
>> See some comments below.
>> On Apr 21, 2017, at 3:00 PM, [e-mail] <mailto:[e-mail]> wrote:
>>  
>> Send nwcrg mailing list submissions to
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>> When replying, please edit your Subject line so it is more specific
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>> Today's Topics:
>> 
>>   1. Structuring NWCRG activities: a few ideas... (Vincent Roca)
>> 
>> From: Vincent Roca <[e-mail] <mailto:[e-mail]>>
>> Subject: [nwcrg] Structuring NWCRG activities: a few ideas...
>> Date: April 21, 2017 at 3:36:40 AM EDT
>> To: [e-mail] <mailto:[e-mail]>
>>  
>> 
>> Hello everybody,
>>  
>> Here are a few topics related to « coding for efficient network communications » on which we could work within the
>> NWCRG.
>>  
>> Use-cases where end-to-end coding or network coding can be beneficial:
>>  
>>             - NC for satellite communications
>> I think there is already some work in Inmarsat and most likely other work that could be brought forward. Lars Erup: any comment? Worth a draft?
>> 
>>             - NC for ICN/CCN
>> We had a paper some time ago with Cedric and Dirk. We showed that NC improved cache hits. Prof. JIanping Wang may have related work.
>> 
>>             - NC for NFV
>> We know this is happening.
>> 
>>             - Virtual/Augmented Reality: can NC help and how?
>> This is my own thing these days after working with the MIT movie makers. I could be open to do a draft if anyone is interested.
>> 
>>             - Robust, low latency tunnels: this could be the basis of a generic protocol
>> Relates to NFV and of course SDN.
>> 
>>             - something else?
>>  
>> On the Coding side:
>>  
>>             - applying sliding window codes for low latency, robust communications
>>             - sliding window codes: several of them have been presented in the past few years during NWCRG meetings
>>                         (or elsewhere). It’s time to go further with specifications, comparisons, work on advanced features, etc.
>>             - something else?
>> Security implications of course. NC can provide “soft protection”. Anything we could do better?
>> 
>>  
>> Well there is a Tetrys draft in the group but there was never a RLNC draft in the tradition of Raptors or LDPC. There was mention of fulcrum. Do we have a clear idea of how many network codes are being researched now?
>> 
>> 
>> A « nice to have »:
>>  
>>             - open source sliding window codecs, not encumbered with complex licensing conditions or (hopefully) IPR
>>             - open source NC solution, here also not encumbered with complex licensing conditions or (hopefully) IPR
>> I think it’s not nice to have - it’s essential we cannot see if for example a ICN app (multi-source multidestination) can be improved by NC or to try a new NC/CC algorithm is we have to go                   through license negociations or eventual patent infringement - you know I love Open Source
>> 
>>             - work on a generic API for sliding window codes
>> Something to talk to TAPS
>> 
>>  
>> Transversal questions for most of the above topics:
>>  
>> - Q: what are the research topics we’d like to address? There are in particular many important and tough questions
>>             on relationships with congestion control and fairness with other flows.
>> There is work at the Hamilton Institute on NC/CC as well as elsewhere - can we get draft from the inventors (with patent protection of course)
>> 
>> - Q: can we derive a generic architecture from existing NC deployments?
>> I actually think that when we tried to have a generic architecture we ended up in an NC Gordian Knot. I think we should target “architectures” than highlight the different researchers environments.
>>  
>>  
>>  
>> Our group can produce Internet-drafts (and informational or experimental RFCs). This is a good manner to have
>> concrete activities that can be discussed within the group and that authors can valorize. I encourage you all to think
>> about it.
>> But inputs can also take other forms: research articles published elsewhere (or not) provided as input for discussions,
>> presentations during next IETF99 meeting (Prague, Czech Republic).
>> I may not have funding for IETF 99 (dear leaders: this is the height of the tourist season in a hot place and of course the IETF registration is really high)
>> 
>>  
>> Part of the above work is of research type, the rest is more applied. Even if we are a research group, this second
>> aspect can both fuel research activities and potentially future IETF work. Therefore it will not considered as out of
>> scope.
>> :-)
>> 
>>  
>> Finally, please consider the above topic as inputs for discussions. Good ideas are always welcome, nothing is fixed.
>> :-)
>>  
>> Happy weekend all. And happy Earth Day. Hope to see some of you at the March for Science.
>>  
>> mjm
>>  
>>  
>> Cheers,
>>  
>>   Vincent
>> 
>> 
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> Emmanuel LOCHIN
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