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Implementation of 40kbps Narrowband Powerline Communication Modem using Chirp Spread Spectrum Method  

Lee Won-Tae (한국전기연구원)
Woo Dae-Ho (시립인천대학교 전자공학과)
Yu Young-Gyu (전북대학교 전기공학과)
Lee Young-Chul (경남대학교 정보통신공학부)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers D / v.54, no.2, 2005 , pp. 116-123 More about this Journal
Abstract
Chirp spread spectrum method using both time and frequency component is fit to time varying channel such as powerline channel. The used chirp symbol based on the CEBus standard is the unit symbol which sweeps from 100kHz to 380kHz over a 25㎲. To evaluate the performance of between Chirp-SS and DSSS, we measured the bit error rate under Gaussian channel. Simulation result is shown that Chirp-SS has a about 3[dB] gain of SNR than DSSS. To verify the performance of implemented modem, it is made up the powerline channel environment. After adding several noises to it, we examined the receiving status of modem. The implemented modem is able to receive the signal over the powerline channel with having several noises and capacitive loads.
Keywords
Powerline Communications; CEBus; Chirp-SS; Narrowband PLC Modem;
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