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https://hdl.handle.net/11000/32260
A Multi-Channel Packet Scheduling Approach to Improving Video Delivery Performance in Vehicular Networks †
Title: A Multi-Channel Packet Scheduling Approach to Improving Video Delivery Performance in Vehicular Networks † |
Authors: Garrido Abenza, Pedro Pablo ![](/image/ORCID.jpg) Malumbres, Manuel P Piñol, Pablo ![](/image/ORCID.jpg) López Granado, Otoniel Mario ![](/image/ORCID.jpg) |
Editor: MDPI |
Department: Departamentos de la UMH::Ingeniería de Computadores |
Issue Date: 2024-01-04 |
URI: https://hdl.handle.net/11000/32260 |
Abstract:
When working with the Wireless Access in Vehicular Environment (WAVE) protocol stack,
the multi-channel operation mechanism of the IEEE 1609.4 protocol may impact the overall network
performance, especially when using video streaming applications. In general, packets delivered from
the application layer during a Control Channel (CCH) time slot have to wait for transmission until
the next Service Channel (SCH) time slot arrives. The accumulation of packets at the beginning of
the latter time slot may introduce additional delays and higher contention when all the network
nodes try, at the same time, to obtain access to the shared channel in order to send the delayed
packets as soon as possible. In this work, we have analyzed these performance issues and proposed a
new method, which we call SkipCCH, that helps the MAC layer to overcome the high contention
produced by the packet transmission bursts at the beginning of every SCH slot. This high contention
implies an increase in the number of packet losses, which directly impacts the overall network
performance. With our proposal, streaming video in vehicular networks will provide a better quality
of reconstructed video at the receiver side under the same network conditions. Furthermore, this
method has particularly proven its benefits when working with Quality of Service (QoS) techniques,
not only by increasing the received video quality but also because it avoids starvation of the lowerpriority traffic.
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Keywords/Subjects: VANETs video delivery QoS IEEE 802.11p multi-channel operation packet scheduling |
Knowledge area: CDU: Ciencias aplicadas: Ingeniería. Tecnología |
Type of document: application/pdf |
Access rights: info:eu-repo/semantics/openAccess Attribution-NonCommercial-NoDerivatives 4.0 Internacional |
DOI: https://doi.org/10.3390/computers13010016 |
Appears in Collections: Artículos Ingeniería de computadores
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