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A Study on the Implementation of Power Line Modem for Remote Control Using DSP  

Kim Su Nam (국민대학교 전자정보통신공학부)
Kang Dong Wook (국민대학교 전자정보통신공학부)
Kim Ki Doo (국민대학교 전자정보통신공학부)
Yoo Hyeon Joong (상명대학교 컴퓨터 및 정보통신공학부)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.29, no.10C, 2004 , pp. 1433-1443 More about this Journal
Abstract
The power line modem proposed in this paper transmits the remote control signal using CSK(Code Shift Keying) and DS/SS method. The CSK technique provides the increased capacity of transmission and robustness towards noise. Besides, the DS/SS technique provides protection against narrow-band Gaussian interference and multi-path interference. The modem supports full-duplex communication using FDD(Frequency Division Duplex) and the modem structure for forward link is same with that for reverse link. To switch each sub-controlled unit smoothly, 4/$\pi$-DQPSK is adopted for noncoherent demodulation. The PN code for spreading spectrum seues to divide each group which consists of sub-controlled units and Walsh code is used for the M-ary CSK technique. Each block is designed and verified with TMS320C5402 DSP. We show the superiority of the proposed method by analyzing numerically the system performance for the factors of the DS/SS and CSK method ullder additive white Gaussian noise and PBI.
Keywords
PLC; CSK; DSP;
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