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Information and communication technologies (ICT) have been converged to other industrial areas, which creates new applications and supports various services. One of the attractive convergence areas is vehicular communication which combines ICT and vehicle technologies. In this paper, we investigate a multi-hop communication scheme for IEEE 802.11p based communication systems which support both vehicle-to-infrastructure...
Handover is a critical factor to provide seamless communications and maintain reliable communication links. In this paper, we consider the handover in vehicular communications by adopting IEEE 802.11p based communication systems. Under multi-channel channel operation, we introduce the L2-level handover algorithm which uses received signal strength indicator (RSSI) value, and the proposed algorithm...
IEEE 802.11p standard which is called Wireless Access in Vehicular Environments (WAVE) is one of key factors in vehicular communications especially to support safety applications. In this paper, we measure throughput of IEEE 802.11p based system using the practical system. To measure the throughput, we first build IEEE 802.11p based communication system using FPGA. Then, throughput is measured both...
Vehicular communications provide new convergence applications by combining vehicles and communication technologies. In this paper, we consider the anti-collision warning application using vehicle-to-vehicle (V2V) communication. First, we introduce the general and special features of the overall system and specifications of the communication prototype. Then, we investigate the application scenarios...
In vehicular communications, the channel estimation is critical to compensate signal distortion due to wireless channel in high mobility scenario. To improve the error performance of vehicular communications, we proposed the midamble-based channel estimation scheme. Based on the proposed scheme, we investigate the effect of midamble insertion on the system performance. With various midamble insertion...
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