Paper Info
Title
Adaptive QoS of WebRTC for Vehicular Media Communications
Abstract
Vehicles shipping sensors for onboard systems are gaining connectivity. This enables information sharing to realize a more comprehensive understanding of the environment. However, peer communication through public cellular networks brings multiple networking hurdles to address, needing in-network systems to relay communications and connect parties that cannot connect directly. Web Real-Time Communication (WebRTC) is a good candidate for media streaming across vehicles as it enables low latency communications, while bringing standard protocols to security handshake, discovering public IPs and transverse Network Address Translation (NAT) systems. However, the end-to-end Quality of Service (QoS) adaptation in an infrastructure where transmission and reception are decoupled by a relay, needs a mechanism to adapt the video stream to the network capacity efficiently. To this end, this paper investigates a mechanism to apply changes on resolution, framerate and bitrate by exploiting the Real Time Transport Control Protocol (RTCP) metrics, such as bandwidth and round-trip time. The solution aims to ensure that the receiving onboard system gets relevant information in time. The impact on end-to-end throughput efficiency and reaction time when applying different approaches to QoS adaptation are analyzed in a real 5G testbed.
Year
DOI
Venue
2022
10.1109/BMSB55706.2022.9828782
2022 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB)
Keywords
DocType
ISSN
Adaptive QoS,Cellular networks,RTCP,vehicular communications & WebRTC
Conference
2155-5044
ISBN
Citations 
PageRank 
978-1-6654-6902-9
0
0.34
References 
Authors
7
9
Name
Order
Citations
PageRank
Ángel Martín1226.23
Daniel Mejías200.34
Zaloa Fernández300.34
Roberto Viola410.69
Josu Pérez500.34
Mikel García600.34
Gorka Velez700.34
Jon Montalbán800.68
Pablo Angueira900.68