Antenna diversity, coding and interleaving technologies for low Earth orbit satellite hand-held terminals

Author

Choy, Faith ; Cherniakov, M.

Author_Institution

Dept. of Comput. Sci. & Electr. Eng., Queensland Univ. Qld., Australia

Volume

3

fYear

1999

fDate

1999

Firstpage

750

Abstract

A handset for a Low Earth Orbit Satellite (LEOS) system is a new type of terminal. In comparison with terrestrial communication systems, LEOS link budget is essentially limited due to the distance between satellites and handsets. This can be partly compensated by utilizing two-element antenna diversity systems at handsets. Antenna diversity systems utilized with and without the coding and interleaving were compared. Correlation between signals received from each antenna element affects the performance of a diversity system. Correlation between signals at a time interval and the adjacent time interval also influences the effectiveness of coding and interleaving, and these are covered in this paper

Keywords

Rayleigh channels; Viterbi decoding; channel coding; convolutional codes; diversity reception; interleaved codes; mobile satellite communication; multipath channels; quadrature phase shift keying; telecommunication terminals; time division multiple access; Iridium like terminals; LEOS system handset; QPSK; Rayleigh fading; TDMA system simulation; Viterbi decoder; antenna diversity; channel coding; coding technology; convolutional encoding; correlation between signals; diversity system performance; equal gain combining; hand-held terminals; interleaving technology; low Earth orbit satellite; multipath fading; statistical channel model; time diversity; Diversity reception; Fading; Frequency; Interleaved codes; Lasers and Electro-Optics Society; Low earth orbit satellites; Receiving antennas; Satellite antennas; Telephone sets; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 1999 Asia Pacific

Print_ISBN

0-7803-5761-2

Type

conf

DOI

10.1109/APMC.1999.833701

Filename

833701