Congestion control for cloud gaming over UDP based on round-trip video latency

Alós Serrano, Alberto and Morán Burgos, Francisco and Carballeira López, Pablo and Berjón Díez, Daniel and García Santos, Narciso (2019). Congestion control for cloud gaming over UDP based on round-trip video latency. "IEEE Access", v. 7 ; pp. 78882-78897. ISSN 2169-3536. https://doi.org/10.1109/ACCESS.2019.2923294.

Description

Title: Congestion control for cloud gaming over UDP based on round-trip video latency
Author/s:
  • Alós Serrano, Alberto
  • Morán Burgos, Francisco
  • Carballeira López, Pablo
  • Berjón Díez, Daniel
  • García Santos, Narciso
Item Type: Article
Título de Revista/Publicación: IEEE Access
Date: 17 June 2019
ISSN: 2169-3536
Volume: 7
Subjects:
Freetext Keywords: Cloud gaming; congestion control; adaptive video coding; QoS; BBR
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Señales, Sistemas y Radiocomunicaciones
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

We describe a network congestion control mechanism for cloud gaming (CG) platforms based on the user datagram protocol (UDP). To minimize the contribution of the downstream transmission delay to the total end-to-end latency in the interaction-perception loop, we first define the round-trip video latency (RTVL) and develop a congestion model. Based on them, we design and implement an adaptation strategy that detects the early stages of congestion to prevent high values of RTVL and network bufferbloat, thus avoiding packet losses. Using data measured from the network, our strategy modifies the target output bitrate of the video encoder to throttle down or upto the data flow sent by the server to the client. In the presence of sudden downstream channel capacity drops of over 40%, our algorithm reactively manages to satisfy the key CG requirements for interactive games by entirely avoiding the packet losses and keeping the RTVL below 100 ms. In reasonably stable network conditions, our algorithm proactively keeps exploring for higher bitrates and building a “network state dictionary,” due to which it achieves an effective downstream channel capacity use of ~95%.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainTEC2016-75981UnspecifiedUnspecifiedImmersive Visual MediaEnvironments
Government of SpainRTC-2016-5676-7UnspecifiedUnspecifiedOpen Graphics Gaming Cloud

More information

Item ID: 64241
DC Identifier: http://oa.upm.es/64241/
OAI Identifier: oai:oa.upm.es:64241
DOI: 10.1109/ACCESS.2019.2923294
Official URL: https://ieeexplore.ieee.org/document/8737672
Deposited by: Memoria Investigacion
Deposited on: 06 Oct 2020 14:13
Last Modified: 06 Oct 2020 14:13
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