Maximisation of Correct Handover Probability and Data Throughput in Vehicular Networks L. Banda and M. Mzyece Department of Electrical Engineering and The French South African Institute of Technology (F’SATI), Tshwane University of Technology, Gauteng, South Africa Received 15 April 2014; Accepted 24 May 2014 Publication 4 August 2014 Abstract In the past decade, the networking and automobile industry has experienced the emergence of vehicular networks which were developed under the Intelligent Transportation Systems (ITS) to provide a plethora of safety and non-safety related applications. The provision of seamless mobility and session continuity is one of the major challenges for the transmission of ITS applications in vehicular networks. This is more critical when a communicating node moves from one subnet to another, a process referred to as inter-subnet handover. In such a case, we deal with the problem of fast and seamless handover support for better Quality of Service (QoS) provisioning especially, for throughput- sensitive and delay-intolerant ITS applications. In this paper, we propose a scheme aimed at improving the handover performance in IP-based vehicular networks by maximising the correct handover probability (P Correct ) and increasing the data throughput during inter-subnet handovers. We demonstrate the impact of mobile node’s speed and direction of motion on both P Correct and data throughput via numerical analysis. Keywords: Handover, Internet Protocol (IP), Correct Handover Probability, Data Throughput, Vehicular Networks. Journal of Machine to Machine Communications, Vol. 1 , 123–144. doi: 10.13052/jmmc2246-137X.123 c  2014 River Publishers. All rights reserved.