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논문 기본 정보

저자정보
(Chungbuk National University) (Ewha Womans University)
저널정보
한국통신학회 한국통신학회논문지 한국통신학회논문지 제50권 제11호
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    초록·키워드

    Software-defined radio (SDR) architecture is a baseband architecture based on general-purpose processors, offering greater flexibility than the conventional baseband architecture by allowing various algorithms to be processed in software-level. While SDRs provide a flexible alternative to traditional baseband architectures, most of them are built on conventional x86 or ARM-based processors and thus lack the customizability needed for optimal performance in wireless communication. This paper analyzes the performance of an SDR architecture implemented on a vector-extended RISC-V core architecture. We designed a vector-extended RISC-V core architecture by adding various vector-level operators to the open-source RISC-V core architecture. Furthermore, we developed an optimized computing kernel for the maximum-ratio transmission (MRT) precoding function using the vector-level instructions. Simulation results showed that the vector-extended SDR architecture can achieve up to 17.1 times higher throughput than the conventional SDR architecture, validating the viability and feasibility of the SDR architecture with the vector-extended RISC-V core architecture.

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