A Hybrid Satellite Network (HSN) utilizes multiple components in a terrestrial and space communications infrastructure to provide extended global communications and services across a diverse scope of connecting points. The HSN architecture may be a collection of independently owned satellites and/or payloads that communicate across disparate government and/or commercial networks. HSN system services may include satellite-based communications, position, navigation, and timing (PNT), remote sensing, weather monitoring, and imaging. These systems may interact with government systems and critical infrastructure (as defined by the Department of Homeland Security) as well as to provide a means of assessment. These systems may have varying levels of trust among different components, requiring frameworks for establishing confidentiality and integrity of individual components while still enabling availability of required shared services.
Satellite and Terrestrial Hybrid Networks (ISTE)
Satellite technology developers have been working toward more universal compatibility with consumer devices, terrestrial networks, and between satellite antennas to create seamless global connectivity for customers. This session will focus on recent activity and critical steps the satellite industry has been taking to advance open technologies and standards and break free from IP silos.
Learn how satellite and terrestrial cellular companies can work together as valuable partners in expanding the reach of next-gen 5G mobile services and Smart applications for commercial, enterprise, and government end-users.
As operators formulate growth strategies to connect the over 1.6 billion people globally with no access to 4G and 5G, it becomes ever more important to identify alternative carrier-grade backhaul solutions to support their expansion needs. Learn how customers around the globe are integrating satellite backhaul into their network, how managed solutions are helping them address more use cases and how a focus on end-user experience is driving innovation that will expand the opportunity to extend cellular networks.
The development of next-generation wireless networks envisages the seamless integration between satellite systems and terrestrial cellular networks. The spectral resources allocated to satellite are not fully utilized, whereas terrestrial spectral resources are becoming overutilized day by day. Therefore, it is important to ascertain an efficient way to share the resources of space-based networks with the terrestrial networks. In view of different capabilities and services, the geostationary earth orbit (GEO) satellite could be the component of the space segment, while the terrestrial segment may be a 3G/4G heterogeneous network. With growing requirements of broadband services and limited availability of spectral resources, higher frequency bands (above 10 GHz), viz., Ku and Ka, may also need to be assigned for mobile satellite services. As such, it is quite challenging to transmit over such higher frequencies due to severe effects of atmospheric turbulence and scattering. Hence, it is imperative to explore cognitive spectrum sharing techniques to enhance spectrum utilization efficiency through the development of hybrid satellite-terrestrial communication systems. In this regard, this chapter studies the satellite-terrestrial communications with the emerging cooperative and cognitive radio techniques to promote the information and communication technology (ICT) sector in a more efficient and reliable manner. More specifically, the chapter addresses the hybrid satellite-terrestrial system design, planning, and resource allocation problems while exploiting cooperation among available network resources with hierarchical spectrum sharing to cope with the demands of futuristic wireless network.
5G boosts connectivity, generates business and brings added value to consumers and citizens. ESA, the European industry and the EU join forces to integrate satellite technologies into communications networks to accelerate the rollout, reach and impact of 5G.
Achieve full integration of satellite with terrestrial 5G networks.o Demonstrate added value of space in 5G-based services and applications.o Develop satellite communication products to be integrated in 5G networks.o Develop testbeds to be used in trials and pilots, particularly with vertical industry stakeholders.o Support the downstream sector in developing applications based on space and 5G.o Demonstrate multi-technology, multi-provider and multi-region (global) integration.
Engage verticals in 5G integrated (satellite and terrestrial) pilots.o Engage with (business) user communities to develop specific initiatives showcasing benefits of space and 5G.o Engage terrestrial actors in pilots, both Mobile Network Operators and Telecom Equipment Vendors.
The main purpose of the 5G/6G Hub is to host companies from the 5G/6G ecosystem (satellite and terrestrial network operators, equipment manufacturers and application developers) to partner with ESA to test their technology and discover how satellite and terrestrial communication networks can converge to create and support innovative applications and services.
5G/6G SPL Essential Technologies Calls address development of key advanced technology building blocks of future integrated terrestrial and satellite 5G networks. This is regulated by Work Plans which are issued annually. The 2021 Work Plan can be found here.
The ESA 5G/6G Team & UK Space Agency will announce significant funding linked to space-enabled 5G solutions, opening opportunities for industry to develop innovative services related to hybrid terrestrial-satellite communication.
My view, and the subject of our latest whitepaper, is that the rise of 5G will be accompanied by the rise of non-terrestrial networks (NTNs), which includes high-altitude platforms (HAPs) such as unmanned aerial vehicles (UAVs) and low earth orbit (LEO) satellites. These NTNs will be integrated with terrestrial networks to create a hybrid terrestrial/non-terrestrial 5G mobile infrastructure serving consumers and enterprises.
The development of advanced antenna and wider technology innovation gives me confidence that LEOs and HAPs will both have their place in the future 5G ecosystem, determined by the economics and the expectations of the users and the service to be provided. For example, HAPs will typically provide connectivity over a specific rural area with a population density that is too low by terrestrial standards to economically provide cellular services, but large enough to justify deploying a HAP to serve that area. HAPs can also communicate with standard devices and allow seamless roaming between networks.
ContextExtending coverage with terrestrial networks (TN) is both an economic and a technological challenge. Fortunately, non-terrestrial networks (NTNs) can provide cost-effective, ubiquitous, and high-capacity connectivity in future 6G networks. NTN refers to networks based on space vehicles or an airborne platform for radio transmission. In particular, communication with mega-constellations of Low Earth Orbiting (LEO) satellites is seen as key on the way to 6G, complementing terrestrial networks to provide unlimited connectivity everywhere. Additionally, satellite communication helps offload traffic from the congested terrestrial network.
ObjectiveThe objective is to determine the RAN technology (via terrestrial network or via satellite access) for different users in a hybrid TN-NTN environment. Additionally, resource allocation can be optimized between TN and NTN to provide optimized overall performance. The simulation will be done with different parameter values to determine the impacts on the system, e.g., NTN cell size, user speed, user density, NTN constellation size.
A doctoral degree in telecommunications is required to apply for this position
Solid foundation in mobile radio networking as well as programming skills and software tools to perform simulations
This position requires a real curiosity vis-à-vis the field of the satellite industry to succeed, to quickly acquire the skills necessary for the research activity of the subject, mixing telecommunications issues in terrestrial and non-terrestrial contexts
Mathematical modeling, with deep knowledge in optimization
Fluent in English
Ability to write and present orally
An innovative field, with the advent of 5G, the rapid growth of LEO satellite technology
Projects involving all operators including the satellite industry
A young team take up the challenge of the future architecture of mobile networks
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