CU-MAC: A MAC Protocol for Centralized UAV Networks with Directional Antennas

DOI Web Site 参考文献21件
  • LI Aijing
    Department of Computer Science and Engineering, Shanghai Jiao Tong University College of Communications Engineering, Army Engineering University of PLA
  • WU Guodong
    College of Communications Engineering, Army Engineering University of PLA
  • DONG Chao
    College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics
  • ZHANG Lei
    College of Communications Engineering, Army Engineering University of PLA

抄録

<p>Media Access Control (MAC) is critical to guarantee different Quality of Service (QoS) requirements for Unmanned Aerial Vehicle (UAV) networks, such as high reliability for safety packets and high throughput for service packets. Meanwhile, due to their ability to provide lower delay and higher data rates, more UAVs are using frequently directional antennas. However, it is challenging to support different QoS in UAV networks with directional antennas, because of the high mobility of UAV which causes serious channel resource loss. In this paper, we propose CU-MAC which is a MAC protocol for Centralized UAV networks with directional antennas. First, we design a mobility prediction based time-frame optimization scheme to provide reliable broadcast service for safety packets. Then, a traffic prediction based channel allocation scheme is proposed to guarantee the priority of video packets which are the most common service packets nowadays. Simulation results show that compared with other representative protocols, CU-MAC achieves higher reliability for safety packets and improves the throughput of service packets, especially video packets.</p>

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