vnc_vehicle.pdf (813.52 kB)
Contention-based learning MAC protocol for broadcast Vehicle-to-Vehicle Communication
conference contribution
posted on 2023-06-09, 09:38 authored by Andreas Pressas, Zhengguo ShengZhengguo Sheng, Falah AliFalah Ali, Daxin Tian, Maziar NekoveeMaziar NekoveeVehicle-to-Vehicle Communication (V2V) is an upcoming technology that can enable safer, more efficient transportation via wireless connectivity among moving cars. The key enabling technology, specifying the physical and medium access control (MAC) layers of the V2V stack is IEEE 802.11p, which belongs in the IEEE 802.11 family of protocols originally designed for use in WLANs. V2V networks are formed on an ad hoc basis from vehicular stations that rely on the delivery of broadcast transmissions for their envisioned services and applications. Broadcast is inherently more sensitive to channel contention than unicast due to the MAC protocol’s inability to adapt to increased network traffic and colliding packets never being detected or recovered. This paper addresses this inherent scalability problem of the IEEE 802.11p MAC protocol. The density of the network can range from being very sparse to hundreds of stations contenting for access to the channel. A suitable MAC needs to offer the capacity for V2V exchanges even in such dense topologies which will be common in urban networks. We present a modified version of the IEEE 802.11p MAC based on Reinforcement Learning (RL), aiming to reduce the packet collision probability and bandwidth wastage. Implementation details regarding both the learning algorithm tuning and the networking side are provided. We also present simulation results regarding achieved message packet delivery and possible delay overhead of this solution. Our solution shows up to 70% increase in throughput compared to the standard IEEE 802.11p as the network traffic increases, while maintaining the transmission latency within the acceptable levels.
Funding
Bionic communications and networking for connected vehicles; G2114; ROYAL SOCIETY; IE160920
Doing More with Less Wiring: Mission-Critical and Intelligent Communication Protocols for Future Vehicles Using Power Lines; G2132; EPSRC-ENGINEERING & PHYSICAL SCIENCES RESEARCH COUNCIL; EP/P025862/1
History
Publication status
- Published
File Version
- Accepted version
Journal
2017 IEEE Vehicular Networking Conference (VNC)ISSN
2157-9865Publisher
Institute of Electrical and Electronics EngineersExternal DOI
Event name
IEEE Vehicular Networking Conference (VNC)Event location
ItalyEvent type
conferenceEvent date
27-29 November 2017ISBN
9781538609866Department affiliated with
- Engineering and Design Publications
Research groups affiliated with
- Sensor Technology Research Centre Publications
Notes
(c) 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2018-01-05First Open Access (FOA) Date
2018-01-05First Compliant Deposit (FCD) Date
2018-01-05Usage metrics
Categories
No categories selectedKeywords
Licence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC