Delay-Sensitive Applications in VANET and Seamless Connectivity: The Limitation of UMTS Network
Multi-interface handheld devices enabling radio link connections to varieties of wireless networks (i.e 3G cellular, Wi-Fi, WiMAX) can provide seamless connectivity. With seamless connectivity, VANET safety applications are emerged. Currently, seamless connectivity has been promoted in 3G cellular environments offering a large coverage area and high bandwidth. Even though, 3G cellular networks offer high bandwidth, they may not support end-to-end delay guarantee which is the most important property of VANET safety applications. Thus, the purpose of this paper is to investigate whether UMTS cellular networks can support seamless connectivity for delay sensitive applications in VANET.