본 논문에서는 HSDPA(High Speed Downlink Packet Access)와 WiMAX(Worldwide Interoperability for Microwave Access) 규격을 동일한 플랫폼에서 재구성만으로 동작시킬 수 있는 이중 모드 SDR(Software Defied Radio) 기반 기지국에 대해서 소개한다. 개방형 구조의 하드웨어와 소프트웨어 구조를 지향하였으며, SDR 플랫폼은 ATCA(Advanced Telecom Computing Architecture) 상에 구현되었다. RTOS(Real Time Operating System)로써 리눅스를 채택함으로써 개방화를 추구하였으며, 기저 대역 신호 처리를 위해 DSP(Digital Signal Processor)를 활용함으로써 시스템 재구성 기능을 향상시켰다.
KSP Keywords
Digital signal processor(DSP), High Speed, Real-Time Operating System, Software Defined Radio(SDR), worldwide interoperability for microwave access(WiMAX)
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