Title :
ADS Mode-S channel performance for aircraft surveillance using GPS positioning
Author :
Sushko, Michael S K
Author_Institution :
Kensington & Icknield, Minneapolis, MN, USA
Abstract :
Mode S squitter technology is being considered as the basis of an automatic dependent surveillance (ADS) system. Under this proposal, aircraft positions would be determined by GPS equipped aircraft and the Mode S data link would be used to transmit the positional information, along with current Mode S usage. This paper studies the downlink data channel of the Mode S data link. The downlink channel is modeled as a random access ALOHA channel in both a fading and non-fading signal environments. The paper presents results for both unslotted (pure ALOHA) and slotted channel performance for Mode S GPS data traffic
Keywords :
Global Positioning System; access protocols; aircraft communication; aircraft navigation; fading channels; radiotelemetry; surveillance; ADS Mode-S channel performance; GPS positioning; Mode S squitter technology; aircraft positions; aircraft surveillance; automatic dependent surveillance; data traffic; downlink channel; downlink data channel; fading signal environment; nonfading signal environment; positional information; random access ALOHA channel; slotted channel performance; unslotted channel performance; Air traffic control; Aircraft; Broadcasting; Downlink; FAA; Fading; Global Positioning System; Proposals; Surveillance; Transponders;
Conference_Titel :
Vehicular Technology Conference, 1998. VTC 98. 48th IEEE
Conference_Location :
Ottawa, Ont.
Print_ISBN :
0-7803-4320-4
DOI :
10.1109/VETEC.1998.686062
