November 10, 2014

The future of mobile radio access networks

CoMoRa – Intelligent network elements for efficient use of resources

Cognitive Mobile Radio (CoMoRa) is a research project sponsored by the Federal Ministry of Education and Research (BMBF). The project presents an innovative concept and a prototype realizing cognitive access to the wireless information networks of the future. The Wireless Communication and Networks department (WN) of Fraunhofer Heinrich Hertz Institute (HHI) has coordinated and substantially contributed to the project. The results will be presented at the final workshop on 11.11.2014.

Future scenarios, such as the Internet of Things or Gigabit Wireless Connectivity, create high demands on wireless resources and require new mechanisms and standards in the coming wireless information networks. Collaborative models are already being used today to increase both coverage and capacity. In addition, wireless networks are becoming more and more heterogeneous as a reaction to local and chronological fluctuations in distribution density.

CoMoRa project aims

The solutions developed in CoMoRa for cognitive wireless access can be integrated into existing mobile communications systems. For this reason, one of the main goals of the project is to identify the key technologies and to show the results of the research in an application-related fashion. The general goals of the CoMoRa project are:

  • Increasing coverage and capacity of mobile wireless networks by using and extending existing LTE/LTE-Advanced Technologies with cognitive and frequency-agile access techniques and novel methods of allocating wireless resources,
  • Innovative concepts of common spectrum usage in cellular multi-operator systems,
  • Developing and providing solutions for licensing spectrums which fulfil the requirements of licensees and license holders in the German and European regulatory frameworks,
  • Showing the advantages of common measuring data evaluation from different sources such as end devices, wireless access networks and spectrum databases.

The first developments of the CoMoRa concept have already been integrated into the standards for the wireless networks of the future and will be available on the market within one to two years.

The WN department is working within the framework of CoMoRa in close cooperation with industry and research partners. The CoMoRa project consortium is supported by an advisory board consisting of experts from selected areas of industry and regulatory committees. Based on the system concept which has been created with the project partners, numerous hardware and software demonstrations will be developed alongside theoretical papers.

The project tasks of Fraunhofer HHI in particular

  • Constructing a hardware demonstrator for Multiband Carrier Aggregation,
  • Investigating Carrier Aggregation in a cellular context,
  • Embedding cognitive devices into an active primary band,
  • Developing models for sensing data acquisition in cognitive interference systems.

More about the CoMoRa project www.comora.de

About WN

The WN department develops solutions for the most diverse areas of wireless supported information transmission. Branches of wireless system research are, amongst others, carrying out and evaluating channel measurements, designing detection algorithms, evaluating system and network performance using simulations as well as real-time implementation of SDR-based experimental systems.

Further information on WN