Performance of noncoherent FSK in a LEO satellite channel

Dennis A. Jiraud

doi:10.1117/12.228133

8 December 1995 Performance of noncoherent FSK in a LEO satellite channel

Dennis A. Jiraud

Proceedings Volume 2601, Wireless Data Transmission; (1995) https://doi.org/10.1117/12.228133
Event: Photonics East '95, 1995, Philadelphia, PA, United States

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.

Citation Download Citation

Dennis A. Jiraud "Performance of noncoherent FSK in a LEO satellite channel", Proc. SPIE 2601, Wireless Data Transmission, (8 December 1995); https://doi.org/10.1117/12.228133

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