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Title PEMD: PRIORITISED EMERGENCY MESSAGE DISSEMINATION IN VEHICULAR SOFTWARE DEFINED NETWORKS

Author(s) Madeeha Zaree Fatima

Abstract Vehicular Software Defined Networking (VSDN) has attained implausible consideration because of their applications in traffic engineering, network intelligence and security services. However, due to high mobility, dense traffic and limited time of communication between vehicles, designing a reliable emergency dissemination strategy in VANETs that can minimize transmission delay to meet the needs of delay-sensitive applications is critical and challenging. Moreover, existing methods lack a reliable software-defined mechanism for scheduling and dissemination of emergency messages based on different severity levels. In this work, we propose a novel four class priority emergency packet scheduling method in VSDN named as prioritised emergency message dissemination (PEMD) to provide real-time data services in vehicular networks based on cooperative decisions. It mainly consists of four priority classes, medium, high, very high and extremely high. When a packet arrives at RSU, the policy based multifold classifier (PMF), classifies arrived packet as emergency or normal packet. Medium, high priority, very high priority, and extremely high priority data packets are considered as real-time, while normal packets are considered non-real-time data packets. The performance of the proposed method is analyzed by NS3.29 simulation which depicts upgrading in service delay, service ratio, deadline miss ratio, packet transmission, and network scalability as compared to state-of-the-art methods such as FCFS, EDF, ADPS, and SDN-controlled VNDN.

Type Thesis/Dissertation MS

Faculty Engineering and Computer Science

Department Computer Science

Language English

Publication Date 2021-07-06

Subject Computer Science

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