GPS Automated & Dependent Surveillance Mode-S Performance in Fading and Non-Fading Channels

Michael S. K. Sushko

Abstract:	The FAA is considering the current Mode-S technology as a basis for a Automatic Dependent Surveillance (ADS) system. The proposed ADS system would consist of transport aircraft equipped with GPS and would use the existing Mode-S data link to transmit aircraft position information along with normal Mode-S data traffic. In this paper, both the fading and non-fading downlink Mode-S data channels using GPS position messages are studied. The downlink channel is modeled both as a unslotted ALOHA channel (pure ALOHA) and a slotted channel in order to compare performance for Mode-S GPS data traffic.
Published in:	Proceedings of the 1998 National Technical Meeting of The Institute of Navigation January 21 - 23, 1998 Westin Long Beach Hotel Long Beach, CA
Pages:	241 - 246
Cite this article:	Sushko, Michael S. K., "GPS Automated & Dependent Surveillance Mode-S Performance in Fading and Non-Fading Channels," Proceedings of the 1998 National Technical Meeting of The Institute of Navigation, Long Beach, CA, January 1998, pp. 241-246.
Full Paper:	ION Members/Non-Members: 1 Download Credit Sign In