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Advanced Multi-Carrier Techniques for Next Generation Commercial and Professional Mobile Systems

Full day workshop

Future communication systems will be characterized by their needs for increased flexibility, high data rate, efficient use of the fragmented spectrum, and bandwidth-efficient handling of unsynchronized transmissions. Heterogeneous networks, with co-existent systems of different bandwidth characteristics, in cell-based, device-to-device, and ad-hoc networking configurations should be accommodated. Such scenarios include cognitive radio and the co-habitation of broadband data services with narrowband professional mobile radio (PMR). Furthermore, going beyond the Long Term Evolution (LTE) standard is a current trend, stemming from the need to improve the spectral characteristics and maximize the spectral efficiency, while preserving/improving the offered quality of service.

Orthogonal frequency division multiplexing (OFDM) has been established as a simple and powerful approach to cope with many of these issues. However, CP-OFDM is not the most appropriate solution in the above scenarios. Nearly orthogonal, asynchronous waveform approaches such as filter bank multicarrier (FB-MC) techniques or even non-orthogonal waveforms, such as generalized frequency division multiplexing (GFDM) and universal filtered multicarrier (UFMC) have recently been shown to significantly outperform CP-OFDM in relevant application scenarios. The use of spectrally well-contained subcarrier frequency responses provides a major improvement in spectrum efficiency and relaxes the synchronization requirements and limitations for system cohabitation. The gains come, however, at the costs of increased complexity.

This workshop aims to gather researchers, engineers and practitioners both from academia and industry, with the aim to inspire the development of new solutions for flexible waveforms. The workshop is supported by the European ICT projects EMPhAtiC and 5GNOW. It will welcome contributions presenting advances on related topics including but not limited to the following:

  • Advanced waveforms and signal processing solutions for PMR, TVWS and 5G systems and heterogeneous spectrum sharing
  • Efficient techniques for out-of-band radiation reduction
  • Advances in synchronisation and channel estimation & equalization for multicarrier waveforms and wideband single-carrier transmission
  • Transmission with very low delay
  • Peak to average power ratio (PAPR) reduction techniques
  • Dynamic spectrum sensing and access schemes for rapid network configuration and interoperability
  • Relaying and range extension techniques
  • MIMO schemes and co-channel interference mitigation
  • Multimodal, multi-access methods for next generation communications
  • Cross-layer aspects and radio resource management in cell-based and ad-hoc networks
  • Cognitive radio as an enabler approach for flexible and adaptive next generation communications.
  • Software Defined Radio solutions supporting dynamic spectrum use
  • Regulatory and standardization aspects

Workshop Chairs

Martin Haardt, TU Ilmenau, Germany
Xavier Mestre, CTTC, Barcelona, Spain
Markku Renfors, Tampere Unversity of Technology, Finland
Gerhard Wunder, Fraunhofer Heinrich-Hertz-Institut & TU Berlin, Germany


  • Gerhard Wunder, Introduction to the 5GNOW project
  • Xavier Mestre, Introduction to the EMPhAtiC project
  • Yahia Medjahdi, Le Ruyet Didier, Faouzi Bader, Laurent Martinod, Integrating LTE Broadband System in PMR Band: OFDM vs. FBMC Coexistence Capabilities and Performances
  • Leonardo Gomes Baltar, Amine Mezghani, Josef A. Nossek, Spectral Efficient Channel Estimation Algorithms for FBMC/OQAM Systems: A Comparison
  • Zhao Zhao; Nikola Vucic, Malte Schellmann, A simplified scattered pilot design for FBMC/OQAM in high frequency selective channel
  • Frank Schaich, Thorsten Wild, Relaxed Synchronization Support of Universal Filtered Multi-Carrier including Autonomous Timing Advance
  • Aijun Cao, Pei Xiao, Rahim Tafazolli, Frequency Offset Estimation Based on PRACH Preambles in LTE
  • Aijun Cao, Guangyi Wang, Yi Ma, Pei Xiao, Rahim Tafazolli, Frequency Domain Pilot-based Carrier Frequency Offset Estimation in SC-FDMA system
  • Sladjana Josilo, Milan Narandžić, Stefan Tomić, Slobodan Nedic, Widely Linear Filtering based Kindred Co-Channel Interference Suppression in FBMC Waveforms
  • Christos Mavrokefalidis, Athanasios A. Rontogiannis, Eleftherios Kofidis, Antonis Beikos, Sergios Theodoridis, Efficient Adaptive Equalization of Doubly Dispersive Channels in MIMO-FBMC/OQAM Systems
  • Didier Le Ruyet, Rostom Zakaria, Berna Özbek, On precoding MIMO-FBMC with imperfect channel state information at the transmitter
  • Vladimir Stanivuk, Stefan Tomić, Milan Narandžić, Slobodan Nedic, Real-domain SIC for MIMO with FBMC Waveforms
  • Markku K. Renfors, Juha Yli-Kaakinen, Fast-Convolution Implementation of Linear Equalization Based Multiantenna Detection Schemes
  • Màrius Caus, Ana Perez-Neira, Marco Moretti, Adrian Kliks, A margin adaptive scheduling algorithm for FBMC/OQAM systems






EMPhATIC Project is a Small and Medium-scale focused Research Project (STREP) supported by the 7th Framework Programme.

Contract number: 318362
Project duration: 01/09/2012 – 01/03/2015 (30 months)