January/February 2018 issue of acmqueue

The January/February issue of acmqueue is out now


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Originally published in Queue vol. 11, no. 12
see this item in the ACM Digital Library



Yonatan Sompolinsky, Aviv Zohar - Bitcoin's Underlying Incentives
The unseen economic forces that govern the Bitcoin protocol

Antony Alappatt - Network Applications Are Interactive
The network era requires new models, with interactions instead of algorithms.

Jacob Loveless - Cache Me If You Can
Building a decentralized web-delivery model

Theo Schlossnagle - Time, but Faster
A computing adventure about time through the looking glass


(newest first)

Maryann Lambert | Tue, 15 Nov 2016 19:44:57 UTC

Good article

Knut H. Flottorp | Wed, 06 Aug 2014 12:11:38 UTC

For all telecommunication articles, categorize these according to ITU standards, so others outside the US can relate to this and see if this is a novelty applicable outside the US.

For this, see the effort reported here: http://www.univerself-project.eu/itu-t where you also find reference to related ITU and ETSI (equipment manufacturers) standards.

When technology is made to the US, and identical solutions are a standard outside the US, the articles should warn all readers that the technology described is for the US only, and address issues pertaining to the US only and may be a violation of local regulations everywhere else.

Knut H. Flottorp | Mon, 04 Aug 2014 07:00:26 UTC

This is utter rubbish.

SDN is an abreviation for "Subscriber Digital Network" as used in ISDN. This is an ITU standard. So is the SS7 signalling suite, that covers all of this.

The tha FCC wants to make their own variants of international standard is a problem all Americans in the US has to cope with, together with their politicians, others have to comply with the ITU standard, adhere to these. These funny proposals are based on the US delegated IETF "standard" that is in the RFC state, meaning that they can be changed with 3 months notice.

The SS7 covers all network setup and teardown, all routing of virtual and physical lines and is fully standardized everywhere except in the US, where they use the right to national approval of ITU standards and recommendation.

What is described as "SDN" is covered by what the rest of the world know as "Intelligent Networks". It is the core of modern mobile systems, where connections are set up and taken down all the time. It is also the core of all international telecommunication, and SDH on fiber optical network, also used for packet switching.

That this is not invented in the US, and is in use even in the US just indicates that the authors of this are ignorant of basic theory in telecommunication. This is a disgrace for the ACM.

SS7 that is used to manage networks is an international standard and cover every aspect sought re-invented here. Please consult international standards before approving papers for submission.

Pierre PETIT | Thu, 05 Jun 2014 14:13:18 UTC

i need to understand if we cannot develop any application in DSN to create or manage robot

N\ | Mon, 02 Jun 2014 15:41:36 UTC

This article is very detailed introduction to the SDN, I think we can learn a lot of knowledge

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