Re: Add deadline awareness to QUIC

[Christian Huitema <[e-mail]>]

Hello Chuan Ma,

Your draft aligns very much with some of the options investigated for 
"media over QUIC". Have you considered participating in that working group?

-- Christian Huitema

On 11/14/2022 10:20 AM, Chuan Ma wrote:
> Dear all:
> 
> I'm Chuan Ma from Tsinghua University. I want to discuss the deadline
> awareness of the current application and whether we should add it to the
> QUIC protocol.
> 
> Applications may have specific deadline requirements for data transmission.
> For instance, a video conference application may require sending the data
> with a deadline of 200ms to enable live interaction. The application may
> drop the data that misses the deadline, even if the data has already
> reached the other end. In this case, it is possible to drop the data after
> the given deadline from the sender to save bandwidth and decrease queuing
> time. Deadline requirement is also helpful to offer deadline-aware
> scheduling combined with QUIC stream priority. Such scheduling methods can
> increase the punctuality of QUIC and allow more data to arrive on time. It
> is possible to extend QUIC and offer deadline-aware transport as a service.
> 
> Nowadays, deadline-aware data transmission is getting more and more
> popular. Applications that emphasize real-time interaction, such as VR/AR,
> gaming, and video conference, are drawing more and more attention. So
> deadline-aware transport has a lot of use cases. However, currently, it is
> the application that is responsible for realizing deadline-aware transport.
> This transport service should be offered by the transport protocol but not
> be left to the application. It is reasonable to provide such transport
> service in a new transport protocol, and QUIC is a good base.
> 
> We wrote a draft to show this idea in
> https://datatracker.ietf.org/doc/draft-shi-quic-dtp/ and implemented a
> protocol based on QUIC called DTP (Deadline-aware Transport Protocol) in
> https://github.com/STAR-Tsinghua/DTP.git. We also built a live stream
> prototype application to compare the performance between DTP and QUIC (
> https://github.com/STAR-Tsinghua/LiveEvaluationSystem.git). We found that
> DTP outperformed QUIC in improving data transmission punctuality and saving
> bandwidth resources. We published the paper in ICNP22 and built several
> systems like proxy and tunnel based on DTP. It would be a good idea to give
> this method a try.
> 
> We'd like to know what you think about this topic. Please let us know if
> you have any comments.
> 
> Best regards.
> 
> Chuan Ma
>