Dynamic behavior of slowly-responsive congestion control algorithms
Proceedings of the 2001 conference on Applications, technologies, architectures, and protocols for computer communications
Quality-adaptive media streaming by priority drop
NOSSDAV '03 Proceedings of the 13th international workshop on Network and operating systems support for digital audio and video
TCP smart framing: a segmentation algorithm to reduce TCP latency
IEEE/ACM Transactions on Networking (TON)
Designing DCCP: congestion control without reliability
Proceedings of the 2006 conference on Applications, technologies, architectures, and protocols for computer communications
Proceedings of the 2007 conference on Applications, technologies, architectures, and protocols for computer communications
Structured streams: a new transport abstraction
Proceedings of the 2007 conference on Applications, technologies, architectures, and protocols for computer communications
Low-latency adaptive streaming over tcp
ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP)
Rd network services: differentiation through performance incentives
Proceedings of the ACM SIGCOMM 2008 conference on Data communication
Donnybrook: enabling large-scale, high-speed, peer-to-peer games
Proceedings of the ACM SIGCOMM 2008 conference on Data communication
Removing exponential backoff from TCP
ACM SIGCOMM Computer Communication Review
Improving application layer latency for reliable thin-stream game traffic
Proceedings of the 7th ACM SIGCOMM Workshop on Network and System Support for Games
TCP Vegas: end to end congestion avoidance on a global Internet
IEEE Journal on Selected Areas in Communications
Packet-level traffic measurements from the Sprint IP backbone
IEEE Network: The Magazine of Global Internetworking
Scaling online games with adaptive interest management in the cloud
Proceedings of the 9th Annual Workshop on Network and Systems Support for Games
DOHA: scalable real-time web applications through adaptive concurrent execution
Proceedings of the 21st international conference on World Wide Web
Sender-side buffers and the case for multimedia adaptation
Communications of the ACM
Sender-side Buffers and the Case for Multimedia Adaptation
Queue - Networks
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Increasingly, multimedia applications need higher bandwidth to provide better quality, for example in multi-party HD video conferencing. This demanding class of interactive applications simultaneously require high bandwidth and low end-to-end latency, a conflicting combination that is poorly supported in existing transports. Conventional wisdom dictates that network applications have a choice of transport protocols between TCP, if a reliable service model is desired, or UDP, if control over timing is required. In this paper we present Paceline, an enhanced transport we have devised to support interactive, high-bandwidth applications. Paceline enhances the transport service model to support application adaptation, through prioritization to provide timely delivery of important data, and cancellation to adapt the application rate to match available bandwidth. However, contrary to conventional wisdom, Paceline has not been implemented over UDP, nor does Paceline propose changes to TCP. We believe that the deployment obstacles and duplication of effort faced by solutions that alter or replace TCP entirely outweigh the challenges of mitigating its impairments. Instead, Paceline employs several mechanisms to support timely priority order delivery and cancellation above TCP: an application-level rate controller to reduce queueing delay due to excessive socket buffering, failover among connections to handle extreme cases of congestion, and message fragmentation to reduce the granularity of preemption. Our evaluation shows that Paceline improves upon conventional end-to-end latency shortcomings of using TCP, by factor of 3 in median latency and a factor of 4 in worst case latency. Meanwhile, Paceline is able to preserve TCP's performance in terms of fairness and utilization. Finally, we compare application performance with Paceline to a representative TCP alternative, Structured Stream Transport (SST), showing Paceline to be highly competitive.