Research of the technology about PowerLine Communication
...hip, which is designed for modulation, and demodulation of PLC. The system can realize power line communication under low voltage. Nowadays there are many communication techniques. Writer compares the PLC with other communication techniques. People often use OFDM and Spread Spectrum Communication for PLC. Writer compares their advantages and disadvantages, and then proves that Spread Spectrum Communication is the best for market. Meanwhile it is proved that we need channel coding because power line has bad attenuation, instability and much noise. We select SC1128 as the modom chip with the research of the market and design a spread spectrum communication system based on SC1128. Software includes communication program of SC1128 and serial communication program. Writer provides a half-duplex communication protocol...