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Proceedings Paper

Performance of noncoherent FSK in a LEO satellite channel
Author(s): Dennis A. Jiraud
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Paper Abstract

The performance of a store-and-forward transmission system for low Earth-orbit (LEO) satellite communications, using noncoherent frequency-shift keying (FSK), is analyzed. The system supports a network in which static and mobile terminals directly access the satellite to transfer messages or data files. The satellite transmission channel is modeled as having flat Rician fading characteristics. Factors that affect transmission performance such as propagation effects (multipath, shadowing, and Doppler), antenna directivity, and satellite elevation are discussed. In order to evaluate the throughput performance of selective-repeat automatic- repeat-request (ARQ), packet success probabilities are derived for both slow and fast fading conditions. It is found, under fast fading conditions, that throughput performance is sensitive to packet length and Rice-factor. However, the opposite is shown under slow fading conditions. It is also shown, under fast fading conditions, that the throughput performance of selective-repeat ARQ is improved with the addition of forward-error-correction (FEC) block codes.

Paper Details

Date Published: 8 December 1995
PDF: 8 pages
Proc. SPIE 2601, Wireless Data Transmission, (8 December 1995); doi: 10.1117/12.228133
Show Author Affiliations
Dennis A. Jiraud, CTA Space Systems (United States)


Published in SPIE Proceedings Vol. 2601:
Wireless Data Transmission
Robert C. Dixon; Modest M. Oprysko, Editor(s)

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