A new simple model for land mobile satellite channels: first- and second-order statistics
Abdi, A.
Lau, W.C.
Alouini, M.-S.
Kaveh, M.
Dept. of Electr. & Comput. Eng., New Jersey Inst. of Technol., Newark, NJ, USA;
This paper appears in: Wireless Communications, IEEE Transactions on
Publication Date: May 2003
Volume: 2,
Issue: 3
On page(s): 519- 528
ISSN: 1536-1276
INSPEC Accession Number: 7631097
Digital Object Identifier: 10.1109/TWC.2003.811182
Current Version Published: 2003-05-13
Abstract
We propose a new shadowed Rice (1948) model for land mobile satellite channels. In this model, the amplitude of the line-of-sight is characterized by the Nakagami distribution. The major advantage of the model is that it leads to closed-form and mathematically-tractable expressions for the fundamental channel statistics such as the envelope probability density function, moment generating function of the instantaneous power, and the level crossing rate. The model is very convenient for analytical and numerical performance prediction of complicated narrowband and wideband land mobile satellite systems, with different types of uncoded/coded modulations, with or without diversity. Comparison of the first- and the second-order statistics of the proposed model with different sets of published channel data demonstrates the flexibility of the new model in characterizing a variety of channel conditions and propagation mechanisms over satellite links. Interestingly, the proposed model provides a similar fit to the experimental data as the well-accepted Loo's (1985) model but with significantly less computational burden.
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