Abstract
Comparing with the traditional mobile communication system, there is a strong line-of-sight (LOS) component in satellite to mobile communication. In fact, LOS and diffuse scattered component are both influenced by shadowing and obstacles. In this paper, a theoretical model for a land mobile satellite channel is analyzed in various shadowing situations. Since LOS and diffuse scattered component are both considered, the angles of arrival are not uniformly distributed in a given azimuth sector. So a kind of asymmetrical Doppler power spectrum is proposed in the paper. Then, in order to effectively respond to the actual channel environment, the different state length \( L_{frame} \) in each state is presented and simulated, the minimum state length should be shorter in the environment, which the channel changes intensely. Finally, numerical simulations in four-state Markov model indicate that the proposed asymmetrical Doppler power spectrum and the various \( L_{frame} \) are reasonable.
This paper is supported in part by National Natural Science Foundation of China (61420106008, 61521062), National High Technology Research and Development Program (2015AA015802), 111 Project (B07022), Shanghai Key Laboratory of Digital Media Processing (STCSM12DZ2272600), and Scientific and Innovative Action Plan of Shanghai (15DZ1100101).
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Wang, G., He, D., Xu, Y., Guan, Y., Zhang, W., Huang, Y. (2017). L-Band Land Mobile Satellite Channel Characteristic Analysis for Geosynchronous Satellite. In: Yang, X., Zhai, G. (eds) Digital TV and Wireless Multimedia Communication. IFTC 2016. Communications in Computer and Information Science, vol 685. Springer, Singapore. https://doi.org/10.1007/978-981-10-4211-9_36
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DOI: https://doi.org/10.1007/978-981-10-4211-9_36
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