Abstract
In this paper, we propose a new shadowed Rice 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 di versity. 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 model but with significantly less computational burden.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 519-528 |
| Number of pages | 10 |
| Journal | IEEE Transactions on Wireless Communications |
| Volume | 2 |
| Issue number | 3 |
| DOIs | |
| State | Published - May 2003 |
Bibliographical note
Funding Information:Manuscript received June 25, 2001; revised November 13, 2001; accepted January 25, 2002. The editor coordinating the review of this paper and approving it for publication is R. A. Valenzuela. The work of A. Abdi, M.-S. Alouini, and M. Kaveh was supported in part by the National Science Foundation under the Wireless Initiative Program under Grant 9979443.
Keywords
- Average fade duration
- Channel modeling
- Diver-sity
- Interference
- Land mobile satellite systems
- Level crossing rate
- Loo's model
- Nakagami model
- Performance evaluation
- Rice model
- Satellite channels
- Shadowed rice model