Environment

The authors estimate the safety benefits offered by an automated highway system. This is done by comparing a fully automated highway with a hypothetical baseline highway and assuming that the two are subject to the same set of environmental intrusions and failures. Using these assumptions the paper estimates a lower bound on the percentage reduction in the number of rear-end crashes that occur on highways. The argument relies on some probabilistic analysis and some prior work on the design of automated vehicle following systems. Disturbance propagation effects in an automated vehicle...

This paper studies the design of layer-2 protocols for a vehicle to send safety messages to other vehicles. The target is to send vehicle safety messages with high reliability and low delay. The communication is one-to-many, local, and geo-significant. The vehicular communication network is ad-hoc, highly mobile, and with large numbers of contending nodes. The messages are very short, have a brief useful lifetime, but must be received with high probability. For this environment, this paper explores the efficacy of rapid repetition of broadcast messages. This paper proposes several random...

Many applications in vehicular networks are context-aware in that the observations of sensing nodes, potentially vehicles, at a target location should be made available to the requesting node possibly at a different location. In order to provision such applications, two phases of packet routing between the requesting node and the target location and packet dissemination within the target location need to be implemented. In this paper, we focus on the second phase and propose an efficient reliable packet dissemination mechanism, Request-adaptive Packet Dissemination Mechanism (RPDM), in...

In this paper we introduce the Center for Collaborative Control of Unmanned Vehicles (C3UV) testbed for collaborative information acquisition. The C3UV testbed has been used for demonstrating a wide range of information-oriented applications executed by collaborative teams of Unmanned Aerial Vehicles (UAVs). This paper presents the C3UV testbed from an architectural stand-point. The testbed includes a estimation and control architecture and a software architecture. The estimation and control architecture is a set of components that can be composed to perform specific missions. The software...