A Speed-Based Routing Protocol for Vehicular Ad-hoc Networks
Date Issued
2008
Date
2008
Author(s)
Chen, Chian-Wei
Abstract
Vehicular ad-hoc Network (VANET) is one of the most popular research areas in recent years. Connections over vehicle to vehicle (V2V) and vehicle to roadside unit (V2R) are two major common communication types in VANET. Since the highly mobile traffic topology of vehicles, most existing routing protocols for wireless communications are not suitable for VANET. The connection time is limited for a vehicle to connect to the roadside unit (RSU) on a highway-like roadway due to the high relative speed between vehicle and RSU. In this thesis, we propose a multi-hop routing protocol which is designed for highway-like VANET. Vehicles can connect to RSU through multi-hop transmissions with assistance of other vehicles even when they are out of the transmission range of RSU. The connection time for vehicle to RSU is also extended. The performance of our routing protocol is validated via NS2 simulations. The results show that our routing protocol outperforms other wireless routing protocols in terms of higher aggregate TCP throughputs and steady routing path. In addition, we also tune the major parameters of our routing protocol to study their impacts on the aggregate TCP throughputs over different parameter values.
Subjects
V2R Communications
Vehicular Networks, VANET
Routing Protocol
Type
thesis
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