Study and Implementation of a Power Line Communication Adaptor Using OFDM Technique

• Main Authors: Yao-Hui Lin, 林耀暉
• Other Authors: Tzyy-Sheng Horng
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/76845673733668659616

碩士 === 國立中山大學 === 電機工程學系研究所 === 96 === This thesis aims to implement a power-line communication (PLC) adaptor to use power lines as transmission media for network communication between different floors in buildings. The PLC adaptor is based on a turbo-mode chip that adopts OFDM modulation technique with 4.5-21 MHz bandwidth and can accord with the HomePlug 1.0 standard. The other components include a physical-layer chip, a flash memory, a TX/RX filter, and a switching power supply with three outputs. All the above components are integrated into a PCB to form a PLC adaptor. The PCB layout has included EMI solutions to reduce interference to the communication signal. After burning process for the flash memory to record the MAC address, the PLC adaptor becomes a network node. Point-to-point communication test is performed between two PLC adaptors located on different floors of a building. The testing items include signal attenuation test and signal throughput test.