Volume 18, No. 3, 2021
Quality Of Service Optimization In Vehicular Ad-Hoc Network
Samiullah Khan , Matiullah , Saman Shakir , Nida Gul Daraz , Mohammad Asim Abbas
Abstract
Vehicular Ad-hoc Networks (VANETs) refers a network which creates in an Ad-hoc manner, between different moving vehicles and other connecting devices which come in contact over a wireless medium for the exchange of useful information with each other. The On Base Unit (OBU) connected to Road Side Unit (RSU) is also configured in cars. The sensor collect information and share it with drivers. VANETs Quality of Service (QoS) is the ability of a network to provide improved service to selected network traffic over various underlying technologies. It offers flexibility, scalability, efficiency, adaptability, software reusability, and maintainability. In particular way, QoS features provide improved and most predictable network service by supporting dedicated bandwidth, improving loss characteristics, avoiding and managing network congestion. QoS is affected by various mobility factors such as dynamic changes in distances, communication links, and density of vehicle. VANETs use pre-defined static Transmission Power, Packet Reception Power Threshold and Ready to Send (RTS) which causes degradation in QoS. In this research, dynamically created different transmission parameters i.e. Transmission power, Packet Reception Power threshold and ready to send were used to find Average throughput, average End-to-End delay and Average Packet loss to check QoS in VANETs.
Pages: 123-143
Keywords: VANETs, QoS, SUMO, NS-2, RTS, Transmission Power and Packet Reception Power Threshold.