https://scholars.lib.ntu.edu.tw/handle/123456789/499121
標題: | An energy-efficient QPSK demodulation scheme with injection-locking technique for green radio communication | 作者: | Huang, F.-C. Wang, B.-C. Tsai, Y.-L. Lin, T.-H. TSUNG-HSIEN LIN |
關鍵字: | Demodulation; Envelope detector; Injection locking; Phase-to-amplitude conversion; QPSK signaling | 公開日期: | 2014 | 起(迄)頁: | 614-617 | 來源出版物: | Proceedings - 2014 IEEE International Conference on Internet of Things, iThings 2014, 2014 IEEE International Conference on Green Computing and Communications, GreenCom 2014 and 2014 IEEE International Conference on Cyber-Physical-Social Computing, CPS 2014 | 摘要: | This paper proposes an energy-efficient QPSK demodulator for low-power wireless receivers. It leverages the characteristic of phase-to-amplitude conversion possessed by the injection-locking oscillator. Compared to Costas-loop-based and PLL-based demodulators with high circuit complexity, the injection-locking-based D-QPSK demodulator exploits only one oscillator and one envelope discrimination circuit, which significantly reduce the power dissipation and chip area. Simulation results manifest the effectiveness of injection-locking technique for D-QPSK demodulation. © 2014 IEEE. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/499121 | DOI: | 10.1109/iThings.2014.105 | SDG/關鍵字: | Demodulation; Demodulators; Detector circuits; Optical variables measurement; Oscillators (electronic); Radio communication; Circuit complexity; Discrimination circuits; Energy efficient; Envelope detectors; Injection-locking; Injection-locking oscillators; Low power wireless; QPSK demodulation; Energy efficiency |
顯示於: | 電機工程學系 |
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