FlEC: Enhancing QUIC with application-tailored reliability mechanisms

by   François Michel, et al.

Packet losses are common events in today's networks. They usually result in longer delivery times for application data since retransmissions are the de facto technique to recover from such losses. Retransmissions is a good strategy for many applications but it may lead to poor performance with latency-sensitive applications compared to network coding. Although different types of network coding techniques have been proposed to reduce the impact of losses by transmitting redundant information, they are not widely used. Some niche applications include their own variant of Forward Erasure Correction (FEC) techniques, but there is no generic protocol that enables many applications to easily use them. We close this gap by designing, implementing and evaluating a new Flexible Erasure Correction (FlEC) framework inside the newly standardized QUIC protocol. With FlEC, an application can easily select the reliability mechanism that meets its requirements, from pure retransmissions to various forms of FEC. We consider three different use cases: (i) bulk data transfer, (ii) file transfers with restricted buffers and (iii) delay-constrained messages. We demonstrate that modern transport protocols such as QUIC may benefit from application knowledge by leveraging this knowledge in FlEC to provide better loss recovery and stream scheduling. Our evaluation over a wide range of scenarios shows that the FlEC framework outperforms the standard QUIC reliability mechanisms from a latency viewpoint.


MPTCP meets FEC: Supporting Latency-Sensitive Applications over Heterogeneous Networks

Over the past years, TCP has gone through numerous updates to provide pe...

Adding Forward Erasure Correction to QUIC

Initially implemented by Google in the Chrome browser, QUIC gathers a gr...

QUIC-EST: A Transmission Scheme to Maximize VoI of Multi-Stream Correlated Data Flows

New advanced applications, such as autonomous driving and haptic communi...

Network Coding for Real-time Wireless Communication for Automation

Real-time applications require latencies on the order of a millisecond w...

Frame Replication and Elimination for Reliability in Time-Sensitive Networks

In modern applications such as in the prospective smart factory, timely ...

Reliable and Distributed Network Monitoring via In-band Network Telemetry

Traditional network monitoring solutions usually lack of scalability due...

Efficient Communication over Cellular Networks with Network Coding in Emergency Scenarios

Emergency communications requires reliability and flexibility for disast...

Please sign up or login with your details

Forgot password? Click here to reset