Telecommunications

Telecommunications

The Telecommunications Research Group consists of research and teaching in four broad areas:

  • wireless communications;
  • data network;
  • signal processing and
  • photonics

An important theme unifying research in the group is “Efficient, robust and secure, multimedia communications, particularly in mobile environments.”

This theme recognises the importance of efficient spectrum utilisation in physical wireless communications, the need to manage cybersecurity, quality of service and mobility issues in data networking, and the fact that the major source of traffic is multimedia content, which must be compressed, communicated and appropriately interpreted.

Within the telecommunications space, there is a growing recognition of the importance of distributed systems which can simultaneously exploit redundancy and diversity. As evidence of this trend, distributed coding techniques have emerged separately in the fields of source coding, channel coding and network coding, which essentially cover the sub-disciplines within the group. If there is a grand vision for the telecommunications research group, it lies in the development of methods and systems to exploit redundancy and diversity in distributed environments, so as to advance distributed multimedia communications.

A number of researchers contribute towards CSIRO Data61-Australia's leading digital research network.  

The research work of the wireless communications group concentrates on multiple antennas techniques, multiple access, Massive MIMO, OFDM, OTFS, space-time processing, IoT, coding, modulation and equalisation and synchronisation mechanisms.

The major research areas of the group are:

  • Multiuser information theory: Error control coding, fundamental limits, etc
  • Turbo-like processing and iterative receiver design: Regarded as the latest revolutionary technique, for tough channels (RF and underwater)
  • Wireless network coding: Use network coding rather than routing
  • Multiple antenna communications: MIMO, Massive MIMO, Space-time processing
  • Cognitive radio: Spectrum agile communications, machine-learning for wireless communications
  • Dedicated short range communications: For inter-vehicle comms and related applications
  • IoT and Satellite Communications: massive access, ultra-reliable low latency communications (uRLLC)
  • Millimeter Wave (mmWave) and terahertz (THz) communications 

The data networks group research work focuses on  Internet Traffic Analytics, Cybersecurity of Internet-of-Things, Quality of Service, and Mobile Internet Services.

The major areas of current work are:

  • Programmable and Software-Defined Networking: fine-grained visibility and dynamic management of network traffic

  • Internet-of-things and sensor networks: smart campus/buildings and wearables
  • Cybersecurity and Trust: behavioural modelling of connected devices and network applications
  • Telepresence systems: Speaker localisation (signal processing); Network protocols
  • Quantum coding for communications: Major new cross disciplinary area
  • Quantum communications: Major new cross disciplinary area

 Research in the signal processing group concentrates on audio, video and image processing, compression and analysis, as well as navigation and positioning signal processing.

The members contribute actively to standardisation processes, and hold numerous patents in the areas of image compression, pattern recognition, image enhancement, signal processing and satellite navigation receiver design and signal processing.

The major research areas are:

  • Paralinguistic speech processing: Emotion, speaker, language recognition; forensics
  • Cochlear speech processing
  • Cognitive load measurement
  • Genomic signal processing
  • Radar signal processing
  • Image and video compression
  • Image enhancement
  • Robust and interactive media communication
  • Processing of signals transmitted by Global Navigation Satellite Systems (GNSS) and other positioning systems

 The photonics group is home to a variety of research projects covering a broad range of photonics and terahertz applications

Amongst others, the group hosts projects targeting the design and fabrication of novel polymer-based segmented cladding fibres, the development of liquid-crystal based transducers for sensing networks, brain/machine interface and laser applications as well as terahertz imaging and sensing applications.

The group has active links with industry partners such as Schneider Electric, Thales Underwater Systems, Silanna, Ampcontrol, Sydney Water, Lastek, Nokia Bell Labs and with numerous academic institutions such as Cambridge University, City University Hong-Kong, Beijing Jiatong University, University of Melbourne, Macquarie University, Sydney University, University of Adelaide, UniSA, and RMIT.

Current areas of research include:

  • Specialty silica and polymer optical fibres
  • Photonic fibre devices: Lasers, gratings, amplifiers
  • Fibre based sensors: structural health monitoring, distributed voltage/current sensors
  • New photonic materials: Including organic materials for vision, display, tactile sensors
  • Liquid crystal transducers for low-power, intrinsically safe sensing applications
  • Optrodes technologies for brain/machine interface
  • Integrated terahertz (THz) devices for next generation of wireless communication
  • Sensing and imaging using terahertz (THz) radiation

Explore Telecommunications research capabilities