Title :
Performance analysis of multiple access techniques for land-mobile satellite communications
Author :
Prasad, Ramjee ; Van Nee, Richard D J ; Van Wolfswinkel, Rogier N.
Author_Institution :
Telecommun. & Traffic-Control Syst. Group, Delft Univ. of Technol., Netherlands
fDate :
28 Nov- 2 Dec 1994
Abstract :
An analysis is presented of the throughput and delay characteristics of a land-mobile satellite channel. Both slotted ALOHA and slotted direct-sequence CDMA (code division multiple access) are evaluated, using binary phase shift keying (BPSK) modulation and forward error correction coding (FEC). In the case of CDMA, the application of maximal ratio combining is also taken into account. Numerical results are presented for arbitrary code lengths and for specific values of the number of resolvable paths. It is shown that CDMA can offer a substantial improvement over slotted ALOHA, especially when error correction and path diversity are applied
Keywords :
Rician channels; code division multiple access; delays; diversity reception; error correction codes; fading; forward error correction; land mobile radio; mobile satellite communication; multi-access systems; phase shift keying; pseudonoise codes; spread spectrum communication; BPSK; FEC; Rician channel; arbitrary code lengths; binary phase shift keying; code division multiple access; delay characteristics; fast fading; forward error correction coding; land-mobile satellite communications; maximal ratio combining; multiple access techniques; numerical results; path diversity; performance analysis; slotted ALOHA; slotted direct-sequence CDMA; slow fading; throughput; Binary phase shift keying; Delay; Diversity reception; Forward error correction; Modulation coding; Multiaccess communication; Performance analysis; Phase modulation; Satellites; Throughput;
Conference_Titel :
Global Telecommunications Conference, 1994. GLOBECOM '94. Communications: The Global Bridge., IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-1820-X
DOI :
10.1109/GLOCOM.1994.512694
