Frame structure of the C-band digital aeronautical communications system (CDACS): Integrated communications, navigation and surveillance conference (ICNS) 2018

Proposed concepts allow a data rate of ~2.8 Mbit/s per channel including protocol overhead, excluding forward error correction, assuming 3.2 bit/symbol on average This fulfills the predicted throughput requirements The synchronization symbol can be used to indicate position of RACH slot A dynamic header concept can reduce the protocol overhead of a frame under certain circumstances Here: (1 + 5) × 1.45MHz = 8.7MHz for 48UA An alternative frame setup is presented in the paper, even more alternatives will be investigated, especially for the reverse link Presented concepts will be evaluated in a flight campaign in June 2018.