Title :
A dynamic channel assignment strategy for the on-board processor in the mobile satellite communications system
Author :
Taira, Shun ; Takeda, Osamu ; Okamoto, Teruki ; Otsu, Yuichi
Author_Institution :
Adv. Space Commun. Res. Lab., Tokyo, Japan
Abstract :
An on-board processor makes efficient use of the channel capacities of a satellite communications system employing multibeam technology. The Advanced Space Communications Research Laboratory has been developing an on-board processor for a multibeam mobile satellite communications system. In a multibeam communications system, the dynamic channel assignment strategy provides high efficiency. This paper evaluates, using computer simulation, the dynamic channel assignment strategy, which makes the on-board processor compact and decreases the signal processing period, and compares the performance of this channel assignment strategy with that of the conventional hybrid channel assignment strategy. The simulation results show the frequency bandwidth required for signal processing in the proposed strategy is from 10% to 20% narrower than that in the conventional hybrid channel assignment strategy
Keywords :
channel capacity; frequency allocation; mobile satellite communication; multibeam antennas; satellite antennas; signal processing; Advanced Space Communications Research Laboratory; channel capacities; computer simulation; dynamic channel assignment; efficiency; frequency bandwidth; multibeam mobile satellite communications system; multibeam technology; onboard processor; performance; signal processing; simulation results; Artificial satellites; Bandwidth; Computer simulation; Digital filters; Digital signal processing; Frequency; Payloads; Satellite communication; Signal processing; Space technology;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 1996. PIMRC'96., Seventh IEEE International Symposium on
Conference_Location :
Taipei
Print_ISBN :
0-7803-3692-5
DOI :
10.1109/PIMRC.1996.567431
