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Fault tolerant design of large-scale digital beam forming in SRAM-FPGAs for software defined satellite platforms
- Source :
- China Communications. 17:224-235
- Publication Year :
- 2020
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2020.
-
Abstract
- Large scale digital beamforming (LS-DBFs) are widely used in satellite communications for spectrum reuse and transmission enhancement. SRAM-FPGAs are a popular option for software defined satellite platforms due to their rich computation resources and high flexibility. However, they are sensitive to soft errors, which limit their application in space. This paper discusses the application of coding based fault tolerance schemes for the protection of LS-DBFs on software defined payloads. Since multiple FPGAs are usually needed to support the whole LS-DBFs system, different decomposition schemes are compared in terms of resource efficiency and reliability when the coding based scheme is applied to protect the DBFs on a FPGA. Theoretical analysis and hardware experiments shows that resource efficiency and reliability are a pair of contradictory requirements for decomposition schemes. The protection with vertical decomposition could improve the reliability by 96% with 1.5× redundancy. And the protection with horizontal decomposition could improve the reliability by 85% with 1.2× redundancy.
- Subjects :
- Beamforming
020301 aerospace & aeronautics
Computer Networks and Communications
Computer science
business.industry
0211 other engineering and technologies
Fault tolerance
02 engineering and technology
Reuse
Software
0203 mechanical engineering
Embedded system
Communications satellite
Redundancy (engineering)
Electrical and Electronic Engineering
business
Field-programmable gate array
021101 geological & geomatics engineering
Coding (social sciences)
Subjects
Details
- ISSN :
- 16735447
- Volume :
- 17
- Database :
- OpenAIRE
- Journal :
- China Communications
- Accession number :
- edsair.doi...........452d115ca725bbd281e12d40be45c2cf