Mitigation of Denial of Service (DoS) attack in Vehicle to Grid (V2G) Network.

Abstract

Vehicle to Grid (V2G) network will become an emerging technology very soon because of the efficient use of electrical energy and the reduction of environmental pollution. V2G network plays a vital role in the advancement of charging and discharging the batteries of Electric Vehicles (EVs). An EV charges or discharges the batteries to the Smart Grid (SG) through Central Aggregator (CAG). So that SG and CAG are the important component of V2G network and CAG is an intermediate between SG and EV. CAG is connected with SG through the internet (i.e., Wi-Fi) and also connected with EV through a Dedicated Short-Range Communication (DSRC). Therefore, CAG has a special significance in V2G network. However, CAG’s network security is a major issue as compared to the other wired network because it has an open access wireless media and no fixed cybersecurity mechanism. There are various cybersecurity attacks (i.e. Denial of Service (DoS), Wormhole, Grey hole, Sybil, sinkhole, timing, Man in the Middle (MITM) and eavesdropping, etc.) that reduce the performance of the V2G network. So, it is important to develop a security mechanism that can protect against cybersecurity attacks on CAG. In this research, we investigate the effect of a cybersecurity attack on V2G network regarding CAG. So that, the deploying of a reliable Intrusion Detection System (IDS) can increase the security of V2G network and detects and mitigates the DoS attack before damaging the V2G network. But the existing IDSes cannot work properly in V2G network because of V2G network has special requirements and characteristics. The focus of this thesis to develop IDS for V2G network that can detect the DoS attack. So we establish V2G network cybersecurity attack detection and mitigation mechanism called Central Aggregator Intrusion Detection System (CA-IDS) against DoS attack that is deployed on CAG and can efficiently detect and mitigate the DoS attack launched by a malicious EV. The proposed system’s experiment is performed in NS-3 (V-3.30) that generates normal network traffic and DoS attack traffic and various tests are conducted. These tests generate results (both normal and DoS attack traffic) that are used to measure the performance of V2G network. IX Our proposed system is compared with existing systems by using different parameters such as throughput, jitter, and accuracy. The analysis shows that the proposed CA-IDS has higher throughput, lower jitter and higher accuracy as compared to the existing schemes.