Parameters that affect safety message delay in sparse infrastructure-less vehicular networks

Reis, André B.; Sargento, Susana; Tonguz, O.K.

doi:10.1109/icc.2014.6883710

Cited by 8 publications

(3 citation statements)

References 18 publications

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“…Leveraging moving cars as temporary RSUs in urban areas, by requesting that they make brief stops to aid in emergency message broadcasts, was shown to bring a measurable improvement to such goals [7]. Similar concepts, when applied to highway vehicular networks, were able to reduce broadcast delay when opposite-lane traffic was insufficient to relay packets [19].…”

Section: Related Workmentioning

confidence: 99%

Parked Cars are Excellent Roadside Units

Reis

Sargento

Tonguz

2017

IEEE Trans. Intell. Transport. Syst.

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A comprehensive implementation of the envisioned traffic safety and efficiency applications of the IEEE 802.11p and WAVE standards assume the premise of the use of DSRC technology both as on-board units (OBUs) and as Roadside Units (RSUs). The high cost associated with RSUs, however, has so far prevented massive deployment of RSUs. Finding alternative solutions to this longstanding problem is therefore very important. In this paper, we propose a self-organizing network approach to using parked cars in urban areas as RSUs. This self-organizing network approach enables parked cars to create coverage maps based on received signal strength and make important decisions, such as if and when a parked car should serve as an RSU. Our results show the feasibility and costeffectiveness of the proposed approach, which is able to provide excellent coverage using only a small fraction of the cars parked in a city.Andre B. Reis is currently working toward the Ph.D. degree in electrical and computer engineering with Carnegie Mellon University (CMU), Pittsburgh, PA, USA, and the University of Aveiro under the CMU-Portugal Program. He received the B.S. and M.Sc. degrees in electronics and telecommunications engineering from the University of Aveiro, Portugal, in 2009, in collaboration with the Eindhoven University of Technology, Netherlands. His current research focuses on infrastructure support systems for vehicular networks in challenging scenarios. He has also published on multimedia Quality of Experience over ad hoc networks.

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Section: Related Workmentioning

confidence: 99%

Parked Cars are Excellent Roadside Units

Reis

Sargento

Tonguz

2017

IEEE Trans. Intell. Transport. Syst.

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“…A time/locationcritical framework for emergency message dissemination is proposed in [31]. Nevertheless, the literatures [29][30][31] only took into account the delivery delay in a highway scenario without RSUs. In [32], the maximum message delivery delay from a vehicle to the nearest RSU was estimated.…”

Section: Related Workmentioning

confidence: 99%

“…In [29], Abboud and Zhuang developed a mathematical model to compute the total delay in emergency message broadcasting based on the traffic flow theory for three traffic flow levels (high, medium, and low). The impact of two different network parameters on the communication delay in infrastructureless highway scenarios was studied in [30]. A time/locationcritical framework for emergency message dissemination is proposed in [31].…”

Section: Related Workmentioning

confidence: 99%

Modeling and Analysis of Safety Messages Propagation in Platoon‐Based Vehicular Cyber‐Physical Systems

Qiao

Shi

Chen³

et al. 2018

Wireless Communications and Mobile Computing

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Safety messages propagation is the major task for Vehicular Cyber-Physical Systems in order to improve the safety of roads and passengers. However, reducing traffic and car accidents can only be achieved by disseminating safety messages in a timely manner with high reliability. Although mathematical modeling of the delay of safety messages is extremely beneficial, analyzing the safety messages propagation is considerably complex due to the high dynamics of vehicles. Moreover, most previous works assume vehicles drive independently and the interaction between vehicles is not taken into consideration. In this paper, we proposed an analytical model to describe the performance of safety messages propagation in the VCPSs under platoon-based driving pattern. Infrastructure-less and RSU-supported scenarios are evaluated independently. The analytical model also takes into account different transmission situations and various system parameters, such as communication range, traffic flow, and platoon size. The effectiveness of the analytical model is verified through simulation and the impacts of different parameters on the expected transmission delay are investigated. The results will help determine the system design parameters to satisfy the delay requirement for safety applications in VCPSs.

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Analysis of Safety Messages Delivery in Vehicular Networks With Interconnected Roadside Units

Pan

2017

IEEE Access

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Parameters that affect safety message delay in sparse infrastructure-less vehicular networks

Cited by 8 publications

References 18 publications

Parked Cars are Excellent Roadside Units

Parked Cars are Excellent Roadside Units

Modeling and Analysis of Safety Messages Propagation in Platoon‐Based Vehicular Cyber‐Physical Systems

Analysis of Safety Messages Delivery in Vehicular Networks With Interconnected Roadside Units

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