Ka‐band HTS channel uplink SNIR probability model

I present a novel analytical study of the signal‐to‐noise‐plus‐interference ratio (SNIR) for Ka‐band high throughput satellite uplink channels. The Ka‐band high throughput satellite systems employ frequency and polarization (color) reuse among the spot beams to achieve throughput increase many times the throughput of the system without reuse. However, color reuse also produces substantial co‐color interference and adding to it, tropospheric precipitation attenuation rises sharply in Ka‐band. The co‐color interference and precipitation induced fading vary randomly; they degrade the system performances. To assess the impact, I develop the uplink channel SNIR probability model in this study. Compared with the known studies of the same topic, this study takes the theoretic approach and is applicable to the urban users in particular. The model is feasible to implement and can provide accurate assessment of the channel SNIR performances statistically in theory for a wide array of system operational scenarios. The SNIR probability model is applied to a model spot beam system of 101 user beams to obtain and compare sample channel performances, which can be used for making system design choices at the early stage of a satellite project. Copyright © 2017 John Wiley & Sons, Ltd.