A Smart Gateway Architecture using an enhanced cross-layer solution for HTS applications at Q/V-band
Open Access DepositedThis dissertation presents an enhanced cross-layer solution for In-Flight Connectivity (IFC)applications using High Throughput Satellite systems at Q/V-band. The Q/V band communication systems open new avenues for next generation of HTS systems. More specifically, they are attractive due to their high bandwidth for user and gateway links. Having a wide bandwidth at Q/V band makes it permissible to offload the links between the satellite and its earth station hubs (gateway) from the Ka band to the Q/V band. This enables additional bandwidth available for HTS feeder links and user links of specific market verticals, which in turn results in reduction of cost per bit for IFC applications to provide WiFi capability on the aircraft. This study provides a deep overview of network architecture at the ground gateway infrastructure with respect to the Network Management System (NMS) to optimize network traffic utilization. This study looks at a gateway constellation platform which optimizes the actual cost-efficient solution for deploying routing user traffic among the networks. In addition, the dissertation discusses the elements involved in the NMS which interfaces with the gateway platform. The overall NMS platform design and capabilities are discussed as they provision the network service parameters throughout the entire operation. The proposed solution integrates the physical antenna, antenna control unit and the power supply into one bundle on the aircraft. This will result in approximately 10% throughput increase compared to conventional methods that do not deploy N+P gateway architecture. The proposed method has enhanced spectrum efficiency along with the NMS unit that has been discussed in detail. Finally, a wideband and multibeam antenna is introduced as an essential part of the solution followed up by simulation results. The dissertation is structured as follows. Chapter one presents the introduction of the dissertation on satellite communications and a baseline theory behind it. The second chapter introduces system assumption and model design used for these dynamic environments. The third chapter in the dissertation presents the proposed gateway network management platform architecture overview in details. We show our proposed Luneburg antenna design and its performance evaluation on the overall network. In chapter four beam switching for smart satellite communications is discussed. Our approach discussed Ultra Wide Band Antennas for different satellite communications applications. For the last part of this chapter, a high data rate Ka-band beam switching methodology is presented. Finally, chapter 5, concludes with the future works.
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