Novel Backoff Mechanism for Mitigation of Congestion in DSRC Broadcast
arXiv:2005.08921
Abstract
Due to the recent re-allocation of the 5.9 GHz band by the US Federal Communications Commission (FCC), it will be inevitable that dedicated short-range communications (DSRC) and cellular vehicle-to-everything (C-V2X), two representative technologies for V2X, have to address coexistence. Especially, the distributed nature of DSRC makes it not trivial to control congestions due to an asynchronous structure, which makes it inefficient to disseminate a controlling signal. To this end, we propose a method to "lighten" a distributed V2X networking. Technically, it is to allocate the backoff counter according to the level of an accident risk to which a vehicle is temporarily exposed. We provide an analysis framework based on a spatiotemporal analysis. The numerical results show the improvement in the successful delivery of basic safety messages (BSMs).
References in corpus (5)
- Spatiotemporal Analysis on Broadcast Performance of DSRC with External Interference in 5.9 GHz Band
- Stochastic Analysis on Downlink Performance of Coexistence between WiGig and NR-U in 60 GHz Band
- Danger Aware Vehicular Networking
- Prioritization of Basic Safety Message in DSRC Based on Distance to Danger
- Reinforcement Learning for Accident Risk-Adaptive V2X Networking