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Multiple Gateway Transmit Diversity in Q/V Band Feeder Links

机译：Q / V频段馈线链路中的多个网关发送分集

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摘要

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 GWs ( active and 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 GW case. Building on this result, an analysis for the 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.
机译：高带宽和可靠的馈线链路的设计对于在多波束卫星通信系统的用户链路上提供新服务至关重要。为此，正在考虑使用Q / V频带和利用多个网关（GW）作为用于克服严重传播效应的传输分集措施。在这种情况下，此贡献涉及包括GW（活动和冗余GW）的馈线链路的设计。为了提供期望的可用性，分析了一种新颖的切换方案，并且讨论了诸如基于预测的切换和切换速率的实际方面。与大多数相关工作不同，动态降雨衰减模型用于分析得出基本GW情况下的平均中断概率。基于此结果，提供了对导致端到端性能量化的方案的分析。该分析通过说明所选指标（平均中断和平均交换率）上活动和冗余GW数量之间的相互影响，来帮助系统确定规模。

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