KaMobile Mobile Ka-band Multimedia Receiver for Vehicles


The overall objective of this activity is to study, derive and verify technical constraints and requirements for an economically feasible system for mobile multimedia reception in vehicles for Ka-band satellite systems without dedicated terrestrial repeaters. The aim of the system is to deliver attractive services (from both the technical as well as the commercial point of view). Proving the technical feasibility of the chosen approach is accomplished by a dedicated computer simulation. Another objective of the project is the creation of a technological roadmap for the identified critical components, allowing the development of such components to be based and influenced by the findings in this project.


Attempts at satellite services for mobile multimedia consumption for different frequency bands have, with very few notable exceptions, been not very successful in the market so far. One of the main challenges for this activity is therefore to derive system requirements, antenna characteristics and service parameters which are both commercially and technically sound while remaining attractive for the end-user and service providers alike. The main focus lays here on the mobile end-user antenna terminal, the total cost of ownership (TCO) and the identification of geographical, vehicle-class and content differentiated markets.

From the point-of-view of the physical layer simulation, the incorporation of a realistic channel models and simulation parameters towards the end of deriving real-world applicable results suitable for driving a technological roadmap can be identified as crucial.


  • In-vehicle entertainment is an increasingly important segment of consumer electronics, contributing to customers expectations of ubiquitous reception of services (“Any Time, Any Place, Any Device)
  • SatCom based solutions enable mobile users the reception of bandwidth intensive multimedia services outside of areas with stable 3G/4G reception
  • Ka-band promises smaller antenna terminal apertures compared to earlier attempts in different frequency bands which is important for user acceptance


  • Study of complete market relevant scenarios in an end-to-end and market-segment differentiated approach
  • Strong focus on deriving specifications for solutions with a high potential for end-user acceptance
  • Corresponding computer simulation of the physical layer under consideration of a realistic channel model contributions
  • Consolidation of findings into a comprehensive technological road-map suitable for steering further developments in the field


The overall system architecture consists of

  • The space segment with a Ka-band transmitting satellite and being supplied with content via an (RF, Ka-band) feeder link
  • The end-user antenna terminal featuring a (tracking) antenna and a modem.

The focus in this activity is firmly with the mobile end-user terminal but typical configurations and limitations imposed by the space segment and the content delivery chain are also taken into account.


The project is organized around four tasks, resulting in the following structure and milestones:

Task 1: Service and System Consolidation

  • MS1: System Requirement Review (SRR)

Task 2: System Detailed Analysis and Trade-offs

  • MS2: Baseline Design Review (BDR)

Task 3: System Performance Assessment

  • MS3: Critical Design Review (CDR)

Task 4: Cost Analysis and Technological Roadmap

  • MS4: Final Review (FR)

Current status

The project has recently been started and is progressing towards completion of the first project milestone (SRR)


ESA Contacts

Status date

Wednesday, January 13, 2016 - 12:26