A Reuse Approach for FPGA-Based SDR Waveforms
July 2006
Kevin Skey, The MITRE Corporation
John Bradley, The MITRE Corporation
Karl Wagner, The MITRE Corporation
ABSTRACT
Software targeting general purpose processing (GPP) elements has been successfully reused for software defined radio (SDR) platforms in support of low-bandwidth waveforms. The Joint Tactical Radio System (JTRS) Software Communications Architecture (SCA) promotes reuse of GPP-based software by providing a consistent framework for developing reusable waveform implementations. However, high-bandwidth waveforms, such as those used in above 2 GHz MILSATCOM terminals, overwhelm the capabilities of GPP-only radios making field programmable gate arrays (FPGAs) a necessity in high-bandwidth radio systems. The SCA does not address the development of reusable FPGA-based waveform implementations. This paper presents an approach supplementing the current SCA to address FPGA-based platforms using System-on-a-Chip (SoC) best practices for design reuse, including common interfaces and a robust system simulation environment.
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