| Title |
Implementation of 40kbps Narrowband Powerline Communication Modem using Chirp Spread Spectrum Method |
| Authors |
이원태(Lee Won-Tae) ; 우대호(Woo Dae-Ho) ; 유영규(Yu Young-Gyu) ; 이영철(Lee Young-Chul) |
| Keywords |
Powerline Communications ; CEBus ; Chirp-SS ; Narrowband PLC Modem |
| 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. |