Electronic Theses and Dissertation

Vehicular Ad-hoc Network (VANET) ialah perkembangan dari Mobile Ad- hoc Network (MANET), jaringan VANET yang memakai kendaraan yang melintas sebagai node. Jaringan VANET masih mempunyai berbagai permasalahan di keamanan dikarenakan VANET rentan terhadap agresi. Dalam VANET komunikasi antara node terjadi dalam suatu routing yang memungkinkan kedua node tersebut berkomunikasi, namun komunikasi antara dua node tersebut dapat dialihkan dengan serangan grayhole sehingga komunikasi tersebut mengalami gangguan. Penelitian ini menganalisa dampak dari serangan grayhole terhadap protocol routing Ad Hoc On-Demand Multipath Distance Vector (AOMDV) menggunakan software NS-2. Penelitian dilakukan dengan 2 kali percobaan dengan masing-masing kecepatan node diantaranya 40 km/jam, dan 60 km/jam. Parameter pengujian yang digunakan Quality of Services (QoS) yaitu dengan melakukan perhitungan terhadap nilai throughput,end-to-end Delay, serta Packet Delivery Ratio (PDR). Penelitian ini dilakukan dengan menjalankan simulasi jaringan VANET sebelum terkena serangan grayhole dan juga simulasi jaringan VANET setelah terkena serangan grayhole. Dari kedua simulasi tersebut dihasilkan nilai-nilai parameter QoS yang akan menjadi bahan perbandingan. Didapat pada simulasi sebelum terkena serangan grayhole dengan kecepatan 60 km/jam nilai throughput sebesar 673.87 kbps dan setelah terkena serangan grayhole menurun menjadi 596.31 kbps. Nilai delay sebelum terkena serangan dengan kecepatan 40 km/jam yaitu sebesar 14,0252 ms dan setelah terkena serangan nilai delay yang didapat yaitu sebesar 18,4332 ms. Persentase PDR yang didapat sebelum terkena serangan grayhole dengan kecepatan 80 km/jam adalah sebesar 99.58% dan setelah terkena serangan grayhole menurun menjadi 88.45%. maka dapat disimpulkan bahwa kinerja routing protocol AOMDV pada jaringan VANET menurun setelah terkena serangan grayhole.
Kata Kunci : VANET, AOMDV, Gray Hole Attack, NS-2

Vehicular Ad-hoc Network (VANET) is a development of Mobile Ad-hoc Network (MANET), a VANET network that uses passing vehicles as nodes. The VANET network still has various problems in security because VANET is vulnerable to aggression. In VANET communication between nodes occurs in a routing that allows the two nodes to communicate, but the communication between the two nodes can be diverted by a grayhole attack so that the communication is disrupted. This study analyzes the impact of a grayhole attack on the Ad Hoc On-Demand Multipath Distance Vector (AOMDV) routing protocol using NS-2 software. The research was conducted with 2 trials with each node speed including 40 km/hour, and 60 km/hour. The test parameters used for Quality of Services (QoS) are by calculating throughput, end-to-end Delay, and Packet Delivery Ratio (PDR) values. This research was conducted by running a VANET network simulation before being hit by a grayhole attack and also a VANET network simulation after being hit by a grayhole attack. From the two simulations, the QoS parameter values are generated which will be used as comparison material. Obtained in the simulation before being hit by a grayhole attack with a speed of 60 km/hour the throughput value is 673.87 kbps and after being hit by a grayhole attack it decreased to 596.31 kbps. The delay value before being hit by an attack with a speed of 40 km/hour is 14.0252 ms and after being hit by an attack the delay value is 18.4332 ms. The percentage of PDR obtained before being hit by a grayhole attack at a speed of 80 km/hour was 99.58% and after being hit by a grayhole attack it decreased to 88.45%. it can be concluded that the performance of the AOMDV routing protocol on the VANET network has decreased after being hit by a grayhole attack. Keyword : VANET, AOMDV, Gray Hole Attack, NS-2