Positioning Outage Probability Analysis for Navigation Satellite Communication over Fading Channels

In this paper, the author investigates the positioning outage probability performance of navigation satellite link. For the analysis, the author considers the satellite downlink wherein the user has a mobile navigation receiver. The author presents an insightful analysis which comprises of analytical results for positioning outage probability (POP). Specifically, the author derives tractable expressions for POP as functions of link parameters in various fading scenarios, namely, small scale Rayleigh fading, Rician fading, Shadow fading, and combined Rician and shadow fading. To numerically evaluate the POP performance of the derived analytical results, the author plots the POP for various simulation parameters. From the numerical plots, the author observes that the POP improves as the average signal power to interference plus noise power ratio (SINR) and bandwidth. However, this dependence on model parameters is not the same for all the fading scenarios. Finally, the author suggests multi-antenna receive diversity and combining technique to improve POP performance.