Adaptive Turbo Receivers for Mobile Data Communications. Next generation mobile networks will be required to offer high data-rate high mobility communications, in addition to current voice services. This project will determine the bounds of achievable performance of such networks by developing and analysing new optimal and near optimal adaptive receivers. In particular we will extend a revolutionary new technique called turbo processing, to achieve joint equalization and decoding with unknown ....Adaptive Turbo Receivers for Mobile Data Communications. Next generation mobile networks will be required to offer high data-rate high mobility communications, in addition to current voice services. This project will determine the bounds of achievable performance of such networks by developing and analysing new optimal and near optimal adaptive receivers. In particular we will extend a revolutionary new technique called turbo processing, to achieve joint equalization and decoding with unknown rapidly time varying channels. The overall aim is to dramatically improve mobility and throughput of wireless data communication systems.Read moreRead less
Cooperative Mesh Networks for Municipal Wireless Access. Robust mobile broadband data communication is vital for public safety and emergency services applications. This project will improve the performance and cost-effectiveness of mesh networks, enabling new network architectures. Immediate benefits to Australia will be: Contribution to a growing knowledge base and fundamental capabilities wireless broadband communications; Education of future leading academic and industrial innovators; Raising ....Cooperative Mesh Networks for Municipal Wireless Access. Robust mobile broadband data communication is vital for public safety and emergency services applications. This project will improve the performance and cost-effectiveness of mesh networks, enabling new network architectures. Immediate benefits to Australia will be: Contribution to a growing knowledge base and fundamental capabilities wireless broadband communications; Education of future leading academic and industrial innovators; Raising the international profile of Australian research in information technology. The contribution of Information and Communications Technology to the National economy is widely recognized. ICT contributes to wealth creation, employment and exports, underpinning many innovation processes.Read moreRead less
Adaptive Transmitters in Wireless Communication Networks. The mobile Internet requires at least an order of magnitude
lager data rate to be delivered to the mobile user rather
then from the mobile user. This high level of capacity asymmetry is a
challenge for current cellular mobile systems being designed for duplex telephony with equal capacity from
and to the mobile user. In this project an adaptive transmitter-receiver
algorithm is proposed. The algorithm will provide a significan ....Adaptive Transmitters in Wireless Communication Networks. The mobile Internet requires at least an order of magnitude
lager data rate to be delivered to the mobile user rather
then from the mobile user. This high level of capacity asymmetry is a
challenge for current cellular mobile systems being designed for duplex telephony with equal capacity from
and to the mobile user. In this project an adaptive transmitter-receiver
algorithm is proposed. The algorithm will provide a significant capacity increase of the future mobile Internet and wireless local area networks (LANs). The project addresses optimum protocols for the mobile channel resource allocation in conjunction to the optimum transmitter-receiver design.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
Adaptive Modulation For OFDM Signals. The sub band Signal To Noise Ratio in an OFDM communications channel varies by as much as 30 dB. In order to optimise the bandwidth efficiency of OFDM signalling it is desirable to adapt the chosen modulation technique such as M-ary QAM to the SNR available in sub bands. In this way high quality channels transmit the highest bit rates, whilst low quality channels accommodate the lowest bit rates. The net result is that the capacity of the communications link ....Adaptive Modulation For OFDM Signals. The sub band Signal To Noise Ratio in an OFDM communications channel varies by as much as 30 dB. In order to optimise the bandwidth efficiency of OFDM signalling it is desirable to adapt the chosen modulation technique such as M-ary QAM to the SNR available in sub bands. In this way high quality channels transmit the highest bit rates, whilst low quality channels accommodate the lowest bit rates. The net result is that the capacity of the communications link does not have to be limited by designing for worst case conditions.Read moreRead less
Optimal Waveform Design and Compensation Techniques for Non Linear Communication Channels. Distortion effects in satellite amplifiers have a serious impact upon communication system performance, for example, by increasing the error rates.
The research study we are proposing involves analysing these distortion causing non linear effects and designing techniques to compensate for them. Although we are initially interested in the nonlinear satellite channel, we intend the results to be extended t ....Optimal Waveform Design and Compensation Techniques for Non Linear Communication Channels. Distortion effects in satellite amplifiers have a serious impact upon communication system performance, for example, by increasing the error rates.
The research study we are proposing involves analysing these distortion causing non linear effects and designing techniques to compensate for them. Although we are initially interested in the nonlinear satellite channel, we intend the results to be extended to other difficult nonlinear channels such as will be present in future 3G and 4G mobile communication systems.
The proposed research will place Australia at the forefront of cutting edge Information Technology and Communications research.
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Optimum Multi-rate Filter Bank Design for Speech Enhancement and Communication Systems. Multi-rate signal processing is gaining more and more importance in signal processing applications such as echo cancellation, microphone arrays, speech enhancement and equalisation. This project is aimed at obtaining high performance and high efficiency multi-rate processing designs by developing appropriate problem formulations based on solid mathematical foundations so that powerful optimisation techniques ....Optimum Multi-rate Filter Bank Design for Speech Enhancement and Communication Systems. Multi-rate signal processing is gaining more and more importance in signal processing applications such as echo cancellation, microphone arrays, speech enhancement and equalisation. This project is aimed at obtaining high performance and high efficiency multi-rate processing designs by developing appropriate problem formulations based on solid mathematical foundations so that powerful optimisation techniques can be applied. The developed multi-rate systems will result in low complexity and low power hardware implementations without significant compromise in performance in each application. Size and cost sensitive of communication devices such as personal data assistants, mobile telephones, hands-free devices, and laptops will benefit greatly from the outcome of the project.Read moreRead less
Optical Orthogonal Frequency Division Multiplexing (OOFDM): a breakthrough for ultra-broadband optical fibre systems and infrared wireless personal-area networks. Optical-OFDM provides Australia with an opportunity to develop a new, high-tech, easy-to-export technology with a very large market potential spanning three key communications markets: wireless personal-area networks, local-area networks and long-haul (80-4000 km) optical networks. It is based on innovative Australian technology genera ....Optical Orthogonal Frequency Division Multiplexing (OOFDM): a breakthrough for ultra-broadband optical fibre systems and infrared wireless personal-area networks. Optical-OFDM provides Australia with an opportunity to develop a new, high-tech, easy-to-export technology with a very large market potential spanning three key communications markets: wireless personal-area networks, local-area networks and long-haul (80-4000 km) optical networks. It is based on innovative Australian technology generated from two research strengths: photonics and OFDM. OFDM is already the basis of most non-optical broadband systems, including digital broadcasting and ADSL. Patent applications have been filed. One application enables bandwidths to rural and remote communities to be quadrupled without laying new cables. By launching off this local market Australian industry can develop a world leading industry.Read moreRead less
Multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) for optical wireless: a breakthrough solution to gaps in broadband delivery. Reliable, flexible broadband delivery is critical for Australian business and for the Australian community. This project will develop the technology on which a new generation of optical wireless communication systems will be based. By using optical rather than radio frequencies they will combine the data rates of optical with the mobil ....Multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) for optical wireless: a breakthrough solution to gaps in broadband delivery. Reliable, flexible broadband delivery is critical for Australian business and for the Australian community. This project will develop the technology on which a new generation of optical wireless communication systems will be based. By using optical rather than radio frequencies they will combine the data rates of optical with the mobility of wireless. They will fill many of the gaps in existing broadband delivery including providing a new flexible last-mile technology and an alternative form of local area network for indoor use. They will lead to new business opportunities within Australia and provide excellent research training in the field of OFDM, a field in which there is significant local R&D in Australian and multinational companies.Read moreRead less
Advanced Signal Processing Techniques for Very High Rate Satellite Demodulators. The purpose of the project is to develop new approaches to the design and implementation of very high-rate modems for satellite communication links. In this context data rates between 500 Mbit/s and 1 Gbit/s are targeted. The project aims to bring together two organisations which combined have the technical expertise, track record, market knowledge and motivation to create a significant new capability in satellite ....Advanced Signal Processing Techniques for Very High Rate Satellite Demodulators. The purpose of the project is to develop new approaches to the design and implementation of very high-rate modems for satellite communication links. In this context data rates between 500 Mbit/s and 1 Gbit/s are targeted. The project aims to bring together two organisations which combined have the technical expertise, track record, market knowledge and motivation to create a significant new capability in satellite communications. The project will result in new techniques for the reception and processing of high bandwidth signals to achieve better performance with flexible and cost-efficient designs such as high end earth-resource and surveillance satellite data reception.Read moreRead less