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학술대회 Jitter Effect on a Digital IF Transceiver for SDR-based Mobile communication Base Station
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유봉국, 조권도, 김진업, 나성웅
International Symposium on Consumer Electronics (ISCE) 2007, pp.1-6
07MM1300, 4세대 이동통신용 적응 무선접속 및 전송 기술개발, 김진업
This paper outlines the time jitter effect of a sampling clock on a Software Defined Radio (SDR) technology-based-Digital Intermediate Frequency (IF) transceiver for a mobile communication base station. The implemented Digital IF transceiver is reconfigurable to three bandwidth profiles : 1.75MHz, 3.5MHz, and 7MHz each incorporating the IEEE 802.16d Worldwide Interoperability for Microwave Access (WiMAX) standard and High-Speed Downlink Packet Access (HSDPA) standard. This transceiver can be reconfigured to other standard profiles through software downloaded onto identical hardware platforms, without changing any components or parts on board. This paper examines the relationship between the Signal-toNoise Ratio (SNR) characteristics of a Digital IF transceiver with an under-sampling scheme and the sampling jitter effect on a multi-channel OFDM signal and a multi-code CDMA signal. The experimental results show that the SNR of the multi-channel OFDM system is more susceptible to sampling clock jitter compared to a multi-code HSDPA system.
Digital IF, High Speed Downlink Packet Access (HSDPA), Orthogonal Frequency Division Multiplexing (OFDM), Software Defined Radio (SDR), Time jitter
KSP 제안 키워드
Communication base station, High-speed downlink packet access, IEEE 802.1, Intermediate frequency, Multi-code, OFDM signal, OFDM systems, Orthogonal frequency division Multiplexing(OFDM), Sampling clock, Sampling scheme, Signal noise ratio(SNR)