In this paper, we develop an in-band-full-duplex (IBFD)-integrated sensing and communications (ISAC)-integrated access backhaul (IAB) network operating at frequency range 2 (FR2) for vehicle-to-everything (V2X) communications, where the IAB-node acts as a roadside unit (RSU) performing communication simultaneously (i.e., same time band). Self-interference (SI) due to IBFD operation can be cance...

Estimation of time-dependent travel time in an urban network is a challenging task due to the interrupted nature of vehicular traffic flows. A novel concept of intersection-tointersection (I2I) real-time travel time estimation (TTE) and route suggestion model based on vehicular ad-hoc network (VANET) technology is proposed for enabling the smart transportations in smart city. The system compone...

With the popularity of mobile devices and development computationally intensive applications, researchers are focusing on offloading computation to mobile-edge computing (MEC) server due its high computational efficiency low communication delay. As resources an MEC limited, vehicles in urban area who have abundant idle should be fully utilized. However, tasks faces many challenging issues. In t...

Vehicular Ad hoc Networks (VANET) are expected to have great potential to improve both traffic safety and comfort in the future. When many vehicles want to access data through roadside unit, data scheduling become an important issue. In this paper, we identify some challenges in roadside based data access. To address these challenges we first review some existing scheduling schemes. We then pro...

In Indian four-lane express highway, millions of vehicles are travelling every day. Accidents are unfortunate and frequently occurring in these highways causing deaths, increase in death toll, and damage to infrastructure. A mechanism is required to avoid such road accidents at the maximum to reduce the death toll. An Emergency Situation Prediction Mechanism, a novel and proactive approach, is ...

In this paper, we consider the problem of disseminating data in Infrastructure-to-Vehicular (I2V) IEEE 802.11 networks. We analyze, with a comparative approach, the performance in highway and urban scenarios. In particular, after characterizing the mobility in these scenarios we analyze the performance in terms of data dissemination from a fixed Road Side Unit (RSU) to the vehicles passing in i...

Security is an important issue in the VANET environment and the Sybil attack affects it the most. In Sybil attack a node illegally claims itself as a legitimate node using multiple identities. This paper systematically analyses about Sybil attack and its effect in the VANET. We establish a Signal and Time clustering (STC) algorithm to detect the Sybil attack in VANET. The scheme provides a low ...

We identify some challenges in RSU access problem. There are two main problems in V2R communication. (1) It is difficult to maintain the end-to-end connection between vehicles and RSU due to the high mobility of vehicles. (2) The limited RSU bandwidth resources lead to the vehicles’ disorderly competition behavior, which will give rise tomultiple RSUs having overlap area environment where RSU a...

Vehicular Ad Hoc Networks (VANETs) can provide participants with security services and entertainment information during the driving. To guarantee correct and smooth operations of VANETs, it is necessary to achieve efficient authentication with user privacy preserving. Current solutions either cannot satisfy privacy requirements, or are not efficient in message verification. Moreover, all the ex...