Future Wireless Communication Systems

  • Vector-valued Transmission
    General modeling of multiuser/multisubchannel transmissions
    Inclusion of concepts like spreading, iterative equalization and decoding, transmission over MIMO channels

    System examples: CDM/CDMA, OFDM/OFDMA, MC-CDMA
  • MIMO Transmission
    Increased transmission rates for limited bandwidth and transmit power
    MIMO Demonstrator for transmission over real channels with non-realtime signal processing
  • Spreading in Frequency, Time and Space
    Spreading concepts, Space-Time Coding, Space-Frequency Coding

    Coherent and incoherent schemes
  • Iterative Methods for Wireless Communications
    Iterative equalization, iterative decoding

    Joint iterative equalization and decoding

    Iterative methods with artificial neural networks

    Application for scalar and vector-valued transmission
  • Highest Efficiency in Bandwidth and Transmit Power
    OFDM-based transmission methods for little channel knowledge

    Transmission methods for fast time-varying channels
  • Ultra-Wideband Transmission
    For biomedical diagnostics and short-range communications