Abstract-Design of high bandwidth and reliable feeder links are central toward provisioning new services on the user link of a multibeam satellite communication system. Toward this, utilization of the Q/V band and an exploitation of multiple gateways (GWs) as a transmit diversity measure for overcoming severe propagation effects are being considered. In this context, this contribution deals with the design of a feeder link comprising N + P GWs (N active and P redundant GWs). Toward provisioning the desired availability, a novel switching scheme is analyzed and practical aspects such as prediction-based switching and switching rate are discussed. Unlike most relevant works, a dynamic rain attenuation model is used to analytically derive average outage probability in the fundamental 1 + 1 GW case. Building on this result, an analysis for the N +P scenario leading to a quantification of the end-to-end performance is provided. This analysis aids system sizing by illustrating the interplay between the number of active and redundant GWs on the chosen metrics: average outage and average switching rate. Index Terms-Gateway diversity, N + P scheme, feeder link, Q/V band, satellite communication, rain attenuation.
A novel GW switching scheme for the N + P scenario is proposed in REF , using a dynamic rain attenuation model and considering two key performance indicators: the average outage probability and the average switching rate.
Multiple Gateway Transmit Diversity in Q/V Band Feeder Links
IEEE Transactions on Communications
IEEE Transactions on Communications
Computer Science