NDLI: Return link channel capacity of wideband CDMA-based LEO satellite system with multiple-beam and diversity

Content Provider	IEEE Xplore Digital Library
Author	Yeonwoo Lee Choon-Geun Cho Hyung-Kun Park Do-Hyun Eun Kyun Hyon Tchah
Copyright Year	1999
Description	Author affiliation: Dept. of Electron. Eng., Korea Univ., Seoul, South Korea (Yeonwoo Lee)
Abstract	In this paper, the performance of a wideband CDMA single-user return link with the diversity reception is investigated by simulation under a realistic LEO (low earth orbit) mobile satellite channel model. Since there are fundamental differences in the channel characteristics between the LEO mobile satellite and terrestrial mobile systems, such as relatively small delay spread and the varying elevation angles, these factors are taken into account for the channel model. Based on this simulation result, we evaluate the total channel capacity for the multi-beam system with the various system parameters, such as the power efficiency of satellite transponder, encoding scheme and EIRP or G/T of antenna, taken into account. It is shown that the different types of diversity techniques can be successfully applied to combat the performance degradation due to the low elevation angle and thus, warrant the high-quality and low-cost implementation.
Starting Page	2094
Ending Page	2098
File Size	577096
Page Count	5
File Format	PDF
ISBN	0780355652
ISSN	10903038
DOI	10.1109/VETEC.1999.778417
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-05-16
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Channel capacity Wideband Low earth orbit satellites Multiaccess communication Diversity reception Delay Power system modeling Transponders Satellite antennas Degradation
Content Type	Text
Resource Type	Article

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