FPGA implementation of Shaped Offset QPSK modulator

This paper presents a novel architecture for the modulation scheme Shaped Offset QPSK (SOQPSK), which belongs to the class of Continuous Phase Modulations (CPMs). These waveforms have recently regained remarkable popularity, due to the increasing demand of highly energy and spectral efficient commun...

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Bibliographic Details
Published in2015 IEEE International Conference on Digital Signal Processing (DSP) pp. 790 - 793
Main Authors Rieth, Dominik, Heller, Christoph, Ascheid, Gerd
Format Conference Proceeding Journal Article
LanguageEnglish
Published IEEE 09.09.2015
Subjects
Algorithms
Architecture
Complexity theory
Computer architecture
Digital signal processing
Field programmable gate arrays
Hardware
Modulation
Modulators
Offsets
Phase shift keying
Telemetry
Unmanned aerial vehicles
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Summary:This paper presents a novel architecture for the modulation scheme Shaped Offset QPSK (SOQPSK), which belongs to the class of Continuous Phase Modulations (CPMs). These waveforms have recently regained remarkable popularity, due to the increasing demand of highly energy and spectral efficient communication systems for deep-space, telemetry and Unmanned Aerial Vehicle (UAV) links, for example. To the best of the authors' knowledge, this is the first SOQPSK modulator architecture and implementation reported in literature. The modulation task itself is divided into a SOQPSK-specific precoding part, with minimal hardware complexity, as well as an optimized quadrature CPM modulator. With a proof-of-concept FPGA implementation, the feasibility of the proposed architecture is shown together with its close to optimal algorithmic performance.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
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SourceType-Conference Papers & Proceedings-2
ISSN:1546-1874
2165-3577
DOI:10.1109/ICDSP.2015.7251984