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Working Group 1 – Transmission Techniques and Signal Processing

Chairman: Prof. Alister Burr, University of York, UK

This WG deals with transmission and signal processing techniques for air-interface technologies, mainly related to the physical layer of systems.

The main topics include:

  • Air-interface techniques for gigabit wireless transmission;
  • Access technologies for pervasive systems;
  • Reduced complexity detection techniques, including equalisation and channel estimation for broadband high mobility channels;
  • Multicarrier based techniques, including OFDM/MC-CDMA and frequency domain equalisation with cyclic prefix;
  • Interference management and suppression techniques, including interference cancellation and MUD for interference cancellation;
  • Modulation and FEC coding schemes, including variable rate and adaptive techniques, multilevel modulation, efficient channel coding techniques such as turbo codes, LDPC codes and other iteratively-decodable codes;
  • Adaptive air-interface techniques for use in cognitive radio systems, and cognitive radio issues related to the physical layer;
  • Receivers for wireless non-stationary and/or non-Gaussian channels, and evaluation of performance.

Turbo-processing (i.e., iterative) techniques play an important role.

They could be applied to joint detection, equalisation, estimation and synchronisation, and in addition they could be used for interference estimation, suppression and cancellation. The use of iteration across layers and between network nodes is investigated.

Network coding, and the application of FEC coding at the network layer, may also be studied in conjunction with WG3, in the framework of network information theory.

Some aspects of topics which are likely also to be covered by SIGs will also be included in WG1 where the issues are more specific to the expertise of WG1, rather than cross-layer.