Title :
3-D cellular systems for air-land communications
Author :
Su, Szu-Lin ; Pan, Wen-Chang
Author_Institution :
Dept. of Electr. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan
fDate :
27 Sep-1 Oct 1994
Abstract :
In VHF air/ground communication systems, the radio-line-of-sight (RLOS) between a ground station and an aircraft must exist. An aircraft at a certain altitude may be interfered by those signals from an over-horizontal stations using the same frequency band. A simple frequency management method is proposed to solve this problem and to get the efficient frequency-reuse to alleviate the frequency congestion in the air traffic control (ATC), flight services and mobile communication services. The authors apply the concept of the terrestrial mobile cellular system to design the 3D cellular system and find the capacities of systems with different access schemes, such as FDMA (interference free), TDMA, and CDMA
Keywords :
air traffic control; aircraft communication; cellular radio; frequency allocation; multi-access systems; radiofrequency interference; 118 to 137 MHz; 3D cellular systems; CDMA; FDMA; TDMA; VHF air/ground communication systems; access schemes; air traffic control; air-land communications; capacities; flight services; frequency congestion; frequency management method; frequency-reuse; mobile communication services; radio-line-of-sight; Air traffic control; Aircraft propulsion; Channel spacing; Councils; Frequency division multiaccess; Interchannel interference; Mobile communication; Multiaccess communication; Satellite ground stations; Time division multiple access;
Conference_Titel :
Universal Personal Communications, 1994. Record., 1994 Third Annual International Conference on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-1823-4
DOI :
10.1109/ICUPC.1994.383112
