Integrated Communication and Navigation for Ultra-Dense LEO Satellite Networks: Vision, Challenges and Solutions

Abstract

Next generation beyond 5G networks are expected to provide both Terabits per second data rate communication services and centimeter-level accuracy localization services in an efficient, seamless and cost-effective manner. However, most of the current communication and localization systems are separately designed, leading to an under-utilization of radio resources and network performance degradation. In this paper, we propose an integrated communication and navigation (ICAN) framework to fully unleash the potential of ultra-dense LEO satellite networks for optimal provisioning of differentiated services. The specific benefits, feasibility analysis and challenges for ICAN enabled satellite system are explicitly discussed. In particular, a novel beam hopping based ICAN satellite system solution is devised to adaptively tune the network beam layout for dual functional communication and positioning purposes. Furthermore, a thorough experimental platform is built following the Third Generation Partnership Project (3GPP) defined non-terrestrial network simulation parameters to validate the performance gain of the ICAN satellite system.

When LEO Mega-Constellations Meet New Radio: A Holistic Performance Evaluation Framework

“…Detailed parameters can be determined jointly with consideration on the radio frequency characteristic of beams together with design principle for constellation, e.g., how to achieve global coverage. Furthermore, the simulated area must be defined, because the coverage of the constellation depends on where on earth users are located [33]. • Option 2: Simulation based on the regional beam layouts for multiple satellites.…”