Title :
Code division multiple access versus frequency division multiple access channel capacity in mobile satellite communication
Author :
Johannsen, Klaus G.
Author_Institution :
Hughes Aircraft Co., Los Angeles, CA, USA
fDate :
2/1/1990 12:00:00 AM
Abstract :
A comparison between frequency-division multiple access (FDMA) and code-division multiple access (CDMA) when both methods operate in the mobile satellite communication environment is presented. The mobile satellites under consideration use multiple beams or scan beam antennas and employ frequency reuse of the allocated L-band frequency spectrum. Because CDMA can better absorb Doppler and multipath effects and permits higher rate coding, it appears in general, with practical considerations set aside, to be the more capable system
Keywords :
channel capacity; code division multiple access; frequency division multiple access; mobile radio systems; satellite relay systems; CDMA; Doppler effects; FDMA; L-band frequency spectrum; channel capacity; code-division multiple access; coding; frequency reuse; frequency-division multiple access; mobile satellite communication; multipath effects; multiple beam antennas; scan beam antennas; Artificial satellites; Bandwidth; Channel capacity; Forward error correction; Frequency conversion; Frequency division multiaccess; L-band; Multiaccess communication; Satellite communication; Space vehicles;
Journal_Title :
Vehicular Technology, IEEE Transactions on
