Abstract
Vehicular Ad-Hoc Networks (VANETs) are a challenging yet active research area. It offers a wide range of applications, including Intelligent Transport System (ITS), effective road traffic monitoring, efficient traffic flow and road safety applications. During real-time data gathering for emergency scenarios, the fixed silent segments cause a problem for smooth communication. Moreover, the critical ITS operations may be delayed due to this problem. This paper proposes a Real-Time Traffic-Aware Data Gathering Protocol (TDG) where the dynamic segmentation switching is adopted to handle the communication limitations. TDG is lightweight and dynamically designed for collecting and forwarding data packets based on current and rapid evolving traffic conditions. The primary objective is to reduce network and data communication overhead to incorporate real-time data collection time constraints. TDG implements a data aggregation scheme for data analysis to fetch information based on location, speed, vehicle id and neighbour count. Moreover, a data extraction scheme is implemented to increase data retrieval and data utilization effectiveness in an intelligent way at the base station. Extensive simulation and evaluation results validate that our proposed solution outperforms existing data gathering protocols in effectiveness, efficiency, delay, communication overhead and data transmission rate.
Highlights
With the advent of Intelligent Transport Systems (ITS) and IoT, Vehicular Ad-Hoc Networks (VANETs) has become a challenging network paradigm
To deal with VANETs related aforementioned challenges in a real-time environment, we proposed Real-Time Traffic-Aware Data Gathering Protocol (TDG)
The message initiation, node configuration for vehicle, CH and Sink nodes are assigned in Tool Command Language (TCL) file
Summary
With the advent of Intelligent Transport Systems (ITS) and IoT, VANETs has become a challenging network paradigm. Knowledge of Vehicle location, velocity, positioning, and neighbour count can be considered a parameter for developing a clustering-based real-time traffic-aware data gathering protocol. It uses vehicles to carry data as long as they can to lessen the communication overhead As this protocol is delay tolerant, it is not functional for real-time traffic scenarios and time-critical traffic conditions. Tom Thumb distributes a special packet (token) node-by-node while informing each Vehicle about the specified time constraint Another data collection protocol named secure real-time traffic data aggregation scheme for the vehicular cloud [53]. DBGR [55] Delay-aware and Backbone-based Geographic Routing Protocol work on real-time traffic information using the Road Aware Evaluation (RWE) Scheme. After complete concatenation at CH, it transmits aggregated data to the BS for data extraction, which is step after Data transmission
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