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SUMMARY
Broadband wireless systems require high power and spectral efficiencies, and transmission over severely time-dispersive channels. Using the concept of Linear Amplification with Non- Linear Components (LINC) as a starting poiny, the main technical objective of the GLANCES project is to design, implement and validate a new set of digital transmission techniques with high power and spectral efficiency for future wireless broadband systems to be employed in the uplink of mobile systems or in satellite communications.
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SOLUTIONS
- Designing signals with low Peak-to-Average Power Ratio (PAPR) or even quasi-constant envelope and high spectral efficiency, employing amplification techniques based on low- cost, highly efficient grossly NonLinear (NL) amplifiers (e.g., class D and E amplifiers)
- Developing new signal designs and/or transmission techniques compatible with grossly NL amplifiers.
- Combining theoretical development (including signal and receiver design), CMOS implementation of key components (with emphasis on matched amplifiers and output power combination with minimum losses) and FPGA-based implementation for an overall system’s proof of concept, for the most promising techniques.
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LINK: http://www.it.pt/project_detail_p.asp?ID=1939
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