High Bandwidth Efficient Schemes for Portable Multimedia Communications. The introduction of multimedia services for mobile users has resulted in a shortage of satellite spectrum. Spot beam technology is used to provide service in areas of high user density. Adjacent overlapping beams are allocated different frequency bands, however interference from neighbouring beams limits capacity. Multi-User Detection is a technology capable of significantly increasing capacity by frequency re-use in adj ....High Bandwidth Efficient Schemes for Portable Multimedia Communications. The introduction of multimedia services for mobile users has resulted in a shortage of satellite spectrum. Spot beam technology is used to provide service in areas of high user density. Adjacent overlapping beams are allocated different frequency bands, however interference from neighbouring beams limits capacity. Multi-User Detection is a technology capable of significantly increasing capacity by frequency re-use in adjacent spot beams. The aim of this project is to investigate receiver design for multi-user spot-beam channels and develop associated synchronisation and channel estimation methods. The outcome will be efficient communications systems supporting higher user populations, without increasing the bandwidth required.Read moreRead less
Constant Envelope and Coded Modulation for Terrestrial and Satellite Radio. Modems for portable radio terminals must take advantage of state-of-the-art digital communications in order to stay commercially competitive. In particular they need to utilize less bandwidth and power for a fixed data rate. The approach here is to employ a parallel configuration of highly efficient error control codes, together with bandwidth efficient continuous phase modulation (CPM). The theoretical performance of su ....Constant Envelope and Coded Modulation for Terrestrial and Satellite Radio. Modems for portable radio terminals must take advantage of state-of-the-art digital communications in order to stay commercially competitive. In particular they need to utilize less bandwidth and power for a fixed data rate. The approach here is to employ a parallel configuration of highly efficient error control codes, together with bandwidth efficient continuous phase modulation (CPM). The theoretical performance of such a system is to be investigated using a novel information-theoretic technique, and the system will be optimised in terms of coding scheme and CPM complexity.Read moreRead less
Reliable Communication in Wireless Cooperative Networks under Channel Uncertainty. The project addresses important problems in Breakthrough sciences and Frontier technologies within the national priority goals. It provides innovative solutions for wireless information technologies. The project's high-impact contributions will advance Australia’s knowledge base and publication of outcomes will elevate and maintain Australia's existing reputation in the field. The project provides 1) high-quality ....Reliable Communication in Wireless Cooperative Networks under Channel Uncertainty. The project addresses important problems in Breakthrough sciences and Frontier technologies within the national priority goals. It provides innovative solutions for wireless information technologies. The project's high-impact contributions will advance Australia’s knowledge base and publication of outcomes will elevate and maintain Australia's existing reputation in the field. The project provides 1) high-quality training for postgraduate students and 2) opportunities for collaborations with a prominent international partner investigator. The innovative solutions will address the ever-increasing demand for high-speed wireless Internet and multimedia.Read moreRead less
A New Paradigm for the Representation and Distribution of High Dimensional Multimedia Content. The proposed project involves cutting edge research in a field of great international significance. The most obvious benefits will be international acclaim and the potential to patent, develop and ultimately export technology and systems for the distribution of high dimensional multimedia content. Outcomes from the project may support the growth of surveillance and networking equipment industries wit ....A New Paradigm for the Representation and Distribution of High Dimensional Multimedia Content. The proposed project involves cutting edge research in a field of great international significance. The most obvious benefits will be international acclaim and the potential to patent, develop and ultimately export technology and systems for the distribution of high dimensional multimedia content. Outcomes from the project may support the growth of surveillance and networking equipment industries within Australia. One application considered explicitly within the project is the demonstration of a new surveillance oriented approach to both distance education and pre-recorded educational content, based upon dense multimedia sampling and our proposed paradigm for efficient distribution to interactive clients.Read moreRead less
New lattice approach for digital broadband communications. A main limiting factor in supplying future broadband communications is overcoming signal dispersion in the transmission channel. Recent preliminary collaboration by the chief investigators has uncovered a novel approach to this problem based on powerful mathematical lattice theory. The techniques have potential to significantly increase bandwidth and reliability compared to current technologies. This project will use lattice theory to pr ....New lattice approach for digital broadband communications. A main limiting factor in supplying future broadband communications is overcoming signal dispersion in the transmission channel. Recent preliminary collaboration by the chief investigators has uncovered a novel approach to this problem based on powerful mathematical lattice theory. The techniques have potential to significantly increase bandwidth and reliability compared to current technologies. This project will use lattice theory to propose, develop, analyse and test new data transmission techniques including joint coding, modulation and equalisation. The research will include theoretical analysis and hardware implementation. The overall aim is to dramatically improve reliability and throughput of data communication systems.Read moreRead less
Adaptation of Vision Model to Perceptual Digital Picture Compression. This project spearheads research in the next generation digital picture compression technology, placing Australia an undisputed leader in this area of frontier technology. It will generate intellectual property and software prototype systems, which can be readily transferred into a vast number of visual communication and service applications, feeding into and rejuvenating national high-tech industries. These applications incl ....Adaptation of Vision Model to Perceptual Digital Picture Compression. This project spearheads research in the next generation digital picture compression technology, placing Australia an undisputed leader in this area of frontier technology. It will generate intellectual property and software prototype systems, which can be readily transferred into a vast number of visual communication and service applications, feeding into and rejuvenating national high-tech industries. These applications include digital photography for fine art, medical imaging, picture archive and communication systems for telemedicine and rural health care systems, high quality digital picture, video and cinematic experience, crime prevention, border control, security and surveillance systems.Read moreRead less
Towards an Information Theory of Radar. Radar is a key sensing technology for the defence of Australia. It is also used in several civilian applications. Recent advances in engineering and science have led to significantly increased inherent capabilities for radar hardware. Nonetheless, radars in service and planned are unable to counter many current threats. To a large extent these new capabilities have yet to be fully exploited, and in large part this is because of the lack of an information ....Towards an Information Theory of Radar. Radar is a key sensing technology for the defence of Australia. It is also used in several civilian applications. Recent advances in engineering and science have led to significantly increased inherent capabilities for radar hardware. Nonetheless, radars in service and planned are unable to counter many current threats. To a large extent these new capabilities have yet to be fully exploited, and in large part this is because of the lack of an information theory for radar that corresponds to the highly successful theory of this kind for telecommunications. Our work, though pitched at fundamental ideas in the theory of radar, will lead to the production of improved radar capability that will permit improved threat detection and tracking.Read moreRead less
Satellite Data Communications for Remote Sensing and Broadband Connectivity. The remote, distributed location of many of Australia's primary industries preclude the use of consumer-oriented terrestrial wireless broadband services. In many instances, satellite communications provides the only feasible means of connectivity for telemetry, supervisory control and data acquisition, tracking and fleet management. Meteorology, remote sensing, irrigation, mining, oil and gas exploration, and fisheries ....Satellite Data Communications for Remote Sensing and Broadband Connectivity. The remote, distributed location of many of Australia's primary industries preclude the use of consumer-oriented terrestrial wireless broadband services. In many instances, satellite communications provides the only feasible means of connectivity for telemetry, supervisory control and data acquisition, tracking and fleet management. Meteorology, remote sensing, irrigation, mining, oil and gas exploration, and fisheries are just a few examples of high-value applications of particular significance to Australia. This project will develop bandwidth efficient satellite communications technologies that greatly reduce cost and pave the way toward new market opportunities for broadband access and telemetry applications. Read moreRead less
Quality-of-Service-Based Adaptive Coding for Wireless Communications Networks. The Information and communications technology (ICT) industry has direct contribution to the economy as well as being an enabler across many areas of potential growth. This project aims at solving a key problem currently inhibiting an entire class of wireless ICT applications with strict quality-of-service requirements.
Another important impact is the bridging nature of the project, cutting across traditionally sep ....Quality-of-Service-Based Adaptive Coding for Wireless Communications Networks. The Information and communications technology (ICT) industry has direct contribution to the economy as well as being an enabler across many areas of potential growth. This project aims at solving a key problem currently inhibiting an entire class of wireless ICT applications with strict quality-of-service requirements.
Another important impact is the bridging nature of the project, cutting across traditionally separated disciplines within telecommunications. The cross-layer design methodologies are the first steps towards interdisciplinary work, opening up new areas of research with high potential of innovation. Establishing an R&D niche of excellence will inspire more efforts into these areas, providing a knowledge base for Australia.Read moreRead less
Security Services for Stream-Oriented and Multicast-Based Communication. Multicast communication over lossy networks is becoming the basic for a growing number of aplications. It is therefore critical to provide sound security mechanisms for multicast communication. Yet, existing security protocols for multicast offer only partial solutions. This project is concerned with two major security problems of multicast communications: authentication and secrecy. The goal of this project is to: (1) deve ....Security Services for Stream-Oriented and Multicast-Based Communication. Multicast communication over lossy networks is becoming the basic for a growing number of aplications. It is therefore critical to provide sound security mechanisms for multicast communication. Yet, existing security protocols for multicast offer only partial solutions. This project is concerned with two major security problems of multicast communications: authentication and secrecy. The goal of this project is to: (1) develop a framework for analysis and evaluation of security services for multicast communication; (2) design efficient algorithms and protocols for securing emerging applications that are multicast-based and/or stream-oriented.
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