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Wireless Access in Vehicular Environments (WAVE) is designed for VANETs to provide safety services and infotainment services through contention-based medium access control (MAC) mechanism. However, the collision probability may increase dramatically in the case of high density of vehicles, due to the contention-based MAC mechanism. To address this issue, we propose a spectrum penetration (i.e., transmit...
Traffic safety and efficiency are the most important motivations for the rapid development of vehicular ad hoc network (VANET) technology. VANET is considered to provide the unified platform and solutions for the intelligent transportation system (ITS). In this paper, a novel method named spectrum penetration is proposed to improve the throughput of multi-channel MAC for VANET. Meanwhile, it can overcome...
Traffic management, road sensing and multimedia delivery in vehicular ad-hoc network (VANET) are application domains whose performance depend on network throughput. Rate adaptation is the key method to maximize the throughput by estimating the current channel qualities and deciding the best bitrate for the next frames. In VANET, rate adaptation is more challenging due to the rapid variation of channel...
With the explosive growth of Internet of Vehicles (IoV), it is undoubted that vehicular demands for real-time Internet access would get a surge in the near future. Therefore, it is foreseeable that the cars within the IoV will generate enormous data. On the one hand, the huge volume of data mean we could get much information (e.g., vehicle's condition and real-time traffic distribution) through the...
Vehicular Ad Hoc Network (VANET) plays a crucial role in enabling important safety applications such as emergency messages dissemination for alleviating traffic accidents and congestion in urban transportation system. Warning information dissemination is of increasing significance in urban highways due to their special topology structure. Hovering Information is a new paradigm for sharing location-aware...
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