NDLI: Estimation of carrier and channel parameters for land-mobile satellite channels

Content Provider	IEEE Xplore Digital Library
Author	Gappmair, W. Bergmann, M. Koudelka, O.
Copyright Year	2012
Description	Author affiliation: Institute of Communication Networks and Satellite Communications, Graz University of Technology, Austria (Gappmair, W.; Bergmann, M.; Koudelka, O.)
Abstract	Information about the channel state is particularly useful for adapting transmission parameters to different fading conditions. With slowly fading channels, the signal-to-noise ratio (SNR) is the most significant figure of merit to obtain the required goals in terms of availability and throughput. Using mobile satellite links, however, the situation may change within the round-trip time. Therefore, not just SNR estimates have to be delivered to the transmitter station in the context of an adaptive coding and modulation strategy, but also some additional information about the signal-to-interference ratio (SIR) and, perhaps more important, the Doppler spread of the mobile link, which determines the amount of variation in time. Assuming a channel determined by correlated Rician fading, an appropriate estimation framework for carrier frequency and phase, SNR, SIR, and Doppler spread will be discussed in the current paper. The signal model reflects in principle the conditions on a time-selective land-mobile satellite link, whereas frequency selectivity - as it is typical for multipath propagation - is considered to be negligible.
Starting Page	328
Ending Page	334
File Size	5175275
Page Count	7
File Format	PDF
ISBN	9781467326766
DOI	10.1109/ASMS-SPSC.2012.6333096
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-09-05
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Fading Doppler spread land-mobile satellite links Parameter estimation Estimation Rician channels signal-to-noise ratio Frequency estimation Doppler effect Signal to noise ratio correlated Rician fading Rice factor
Content Type	Text
Resource Type	Article

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