Re: Proposal for Integrating Deadline-Aware Streams into Multipath QUIC using DMTP

[Tony John <[e-mail]>]

Thanks for bringing this to my attention! I have an alternate link to 
the paper that isn’t behind a paywall: 
https://netsec.ethz.ch/publications/papers/john-dmtp-2023.pdf

Best regards

Tony John

On 31/10/2024 12:49, Marten Seemann wrote:
> The paper is paywalled. I don't have access, and I'd assume that this 
> applies to many participants on this mailing list.
>
> On Thu, 31 Oct 2024 at 17:12, Tony John <[e-mail]> wrote:
>
>     Dear QUIC Working Group,
>
>     I would like to initiate a discussion on integrating
>     deadline-aware streams as an extension to the Multipath QUIC
>     protocol. Given the increasing demand for real-time applications
>     such as teleoperation, live video streaming, and online gaming,
>     there's a growing need for transport protocols that can
>     efficiently handle strict latency requirements.
>
>     Motivation
>
>     Multipath QUIC enhances performance by utilizing multiple paths
>     simultaneously, but it currently lacks mechanisms to guarantee
>     data delivery within specific timeframes. Introducing
>     deadline-aware streams to Multipath QUIC could enable applications
>     to meet stringent latency constraints, optimizing for low-latency
>     and high-reliability scenarios.
>
>     Additionally, the ability to have multiple paths using the same
>     4-tuple opens up the possibility of leveraging paths from
>     path-aware networks like SCION, source routing, and others. This
>     expands the pool of available paths beyond traditional IPv4 and
>     IPv6 routes, potentially increasing the effectiveness of
>     deadline-aware mechanisms like those proposed in the
>     Deadline-aware Multipath Transport Protocol (DMTP).
>
>     Relevant Discussions
>
>     I would like to acknowledge the previous discussion
>     <https://mailarchive.ietf.org/arch/msg/quic/Ie6Ju6cNCocNNktldJJrvZfsXQ8/>on
>     adding deadline awareness to QUIC. The discussion indicates
>     interest in deadline-aware mechanisms and their applicability to QUIC.
>
>     Proposal
>
>     Building upon these ideas, I propose integrating deadline-aware
>     streams into Multipath QUIC as an optional extension. The key
>     aspects of the proposal are:
>
>      *
>
>         New Transport Parameter and Frame Type: Introduce a new
>         transport parameter to signal support for deadline-aware
>         streams during the QUIC handshake and define a new frame type
>         called DEADLINE_CONTROLto signal deadlines for specific streams.
>
>      *
>
>         Leveraging DMTP Concepts: Utilize strategies from the
>         Deadline-aware Multipath Transport Protocol (DMTP), such as
>         smart retransmissions and Forward Error Correction (FEC), to
>         optimize packet delivery based on latency deadlines.
>
>      *
>
>         Custom Scheduler and Congestion Controller: Implement DMTP's
>         mechanisms as a custom scheduler and congestion controller
>         within the Multipath QUIC framework.
>
>     How DMTP Fits In
>
>     DMTP is tailored for deadline-sensitive communication over
>     multiple paths. Its key concepts include:
>
>      *
>
>         Path Optimization: Dynamically selecting paths based on
>         metrics like latency, bandwidth, and packet loss,
>         complementing Multipath QUIC's ability to manage multiple
>         paths effectively.
>
>      *
>
>         Adaptive FEC: Integrating FEC to reduce the need for
>         retransmissions, enhancing Multipath QUIC's congestion control
>         mechanisms.
>
>      *
>
>         Smart Retransmissions: Retransmitting packets only if they are
>         predicted to meet the deadline, avoiding unnecessary
>         retransmissions and improving efficiency.
>
>     For more detailed information on DMTP, please refer to our paper
>     <https://doi.org/10.23919/IFIPNetworking57963.2023.10186417>. We
>     have developed a prototype implementation of DMTP, which we plan
>     to open-source shortly.
>
>     Request for Feedback
>
>     I am interested in the community's perspective on this proposal:
>
>      *
>
>         Value of Exploration: Do you see value in exploring
>         deadline-aware streams as an extension to Multipath QUIC?
>
>      *
>
>         Potential Challenges: Are there potential challenges or
>         compatibility concerns we should be aware of?
>
>     I would greatly appreciate any thoughts or guidance on how best to
>     proceed. Thank you for considering this proposal. I look forward
>     to your feedback and the possibility of discussing this further.
>
>     Best regards,
>
>     M.Sc. Tony John
>
>     Research Associate
>
>     Otto-von-Guericke-University Magdeburg, Germany
>