The Journal of Korea Institute of Information, Electronics, and Communication Technology (한국정보전자통신기술학회논문지)

Korea Information Electronic Communication Technology (한국정보전자통신기술학회)
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Implementation of a Window-Masking Method and the Soft-core Processor based TDD Switching Control SoC FPGA System

윈도 마스킹 기법과 Soft-core Processor 기반 TDD 스위칭 제어 SoC 시스템 FPGA 구현

  • Hee-Jin Yang (Future Information Communication R&D Center, HanwhaSystems) ;
  • Jeung-Sub Lee (Future Information Communication R&D Center, HanwhaSystems) ;
  • Han-Sle Lee (Future Information Communication R&D Center, HanwhaSystems)
  • 양희진 ;
  • 이증섭 ;
  • 이한슬
  • Received : 2024.05.31
  • Accepted : 2024.06.17
  • Published : 2024.06.29
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Abstract

In this paper, the Window-Masking Method and HAT (Hardware Attached Top) CPU SoM (System on Module) are used to improve the performance and reduce the weight of the MANET (Mobile Ad-hoc Network) network synchronization system using time division redundancy. We propose converting it into a RISC-V based soft-core MCU and mounting it on an FPGA, a hardware accelerator. It was also verified through experiment. In terms of performance, by applying the proposed technique, the synchronization acquisition range is from -50dBm to +10dBm to -60dBm to +10dBm, the lowest input level for synchronization is increased by 20% from -50dBm to -60dBm, and the detection delay (Latency) is 220ns. Reduced by 43% to 125ns. In terms of weight reduction, computing resources (48%), size (33%), and weight (27%) were reduced by an average of 36% by replacing with soft-core MCU.

본 논문에서는 시분할 이중화 방식의 MANET(Mobile Ad-hoc Network)망 동기화 시스템의 성능개선 및 경량화를 위해 윈도 마스킹 기법(Window-Masking Method)과 HAT(Hardware Attached Top) CPU SoM(System on Module)을 On-Device 화하여 RISC-V 기반의 Soft-core MCU로 하드웨어 가속기(Hardware Accelerator)인 FPGA에 탑재하는 것을 제안한다. 또한 실험을 통해 검증하였다. 실험 결과 성능 면에서는 제안한 기법을 적용하여 동기획득 범위는 -50dBm~+10dBm에서 -60dBm~+10dBm으로 동기 획득 최저 입력 레벨이 -50dBm에서 -60dBm으로 20% 증가, 검출 지연(Latency)은 220ns에서 125ns로 43% 감소하였다. 경량화 면에서는 Soft-core MCU로 대체 함으로써 컴퓨팅 자원(Resource, 48%), 크기(Size, 33%) 및 무게(Weight, 27%)가 평균 36% 경량화하였다.

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References

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