Kwangjae Lim

Learn More
Sooyoung Kim Shin et al. 31 In high-speed multimedia satellite communication systems, it is essential to provide high-quality, economical services by using efficient transmission schemes which can overcome channel impairments appearing in the satellite link. This paper introduces techniques to compensate for rain attenuation and the Doppler shift in the(More)
Necessity for interoperable control and non-payload communication technology and system deployment is increased for safe unmanned aircraft system (UAS) operation as well as extension of UAS applications. For this, C-band frequency was globally allocated only for CNPC in world radio conference 2012 (WRC-12). The technology development and standardization(More)
In this paper, we propose an air-ground channel model selection method for unmanned aircraft system (UAS) communication using digital elevation model (DEM) data. Recently, the air-ground channel models for the UAS communication system were derived based on the measurement results in various environments such as urban, suburban, mountainous, hilly, and over(More)
For the safe control of Unmanned Aerial Vehicle (UAV), a reliable communication link is very important, so a Control and Non-Payload Communication (CNPC) standard is progressing in Radio Technical Commission for Aeronautics (RTCA) [1][2]. The CNPC standard of RTCA only includes the physical layer specification, so a network architecture and upper layer(More)
  • 1