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Broadcasting is an effective routing paradigm for data dissemination in vehicular ad hoc networks (VANETs). One concern that arises with broadcasting is the broadcast storm problem, which would cause node contentions and data collisions, and thus degrade the transmission efficiency of a network. This paper proposes a Dynamic trAnsmission delaY based broadcast (DAYcast) protocol for a VANET. To alleviate...
Routing is a critical issue in vehicular ad hoc networks (VANETs). This paper considers the routing issue in both vehicle to vehicle (V2V) and vehicle to infrastructure (V2I) communications in VANETs, and proposes a Moving dirEction and DestinAtion Location based routing (MEDAL) algorithm for supporting V2V and V2I communications. MEDAL takes advantage of both the moving directions of vehicles and...
This paper proposes a Destination Information based Probabilistic (DIP) routing protocol for vehicular sensor networks (VSNs). In DIP, the destination information of a packet is used to determine candidate neighbors and the moving pattern of a vehicle is used to help select the next hop for forwarding data. The design goal of this protocol is to minimize the packet loss in the network and thus improve...
If a transit vehicle breaks down on a schedule trip, there are some vehicles in the system need to serve this trip and the former schedule must be changed. For solving the urgency vehicle routing problem with disruption that may be vehicle breakdowns or traffic accidents in the logistics distribution system, through the analysis of the problem and the disruption measurement, the mathematics model...
For solving the vehicle routing disruption problem which is caused by vehicles breakdown or traffic accidents in the logistic distribution system, an urgency vehicle scheduling scheme is established based on the theory of disruption management. According to the characteristics of the problem, Lagrangian relaxation approach is applied to simplify and divide the problem into two parts. The column generation...
For solving the vehicle routing problem with disruption that may be vehicle breakdowns or traffic accidents in the logistics distribution system, the disruption recovery strategies and solutions are given based on the theory of disruption management. Disruption measurements are given and the disruption management model is built. For the attributes of the vehicle routing problem with disruption, a...
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