A Multiple-Access Design for Power-Line Communication
Date Issued
2007
Date
2007
Author(s)
Cheng, Kwang-Hong
DOI
en-US
Abstract
Power-Line Communication(PLC) uses existing electric lines to transmit broadband signals in residential networking environments. Being inexpensive and convenient, PLC is a potential solution to the last-mile access problem. However, the transmission environment in PLC is quite hostile since power-lines are not initially designed for data transmission.
Our work deals with a multiple-access system for PLC applications. Unlike the specifications defned in HomePlug 1.0 and HomePlug AV, the proposed system consists of the
interleave-division multiple access(IDMA) scheme and the well-known OFDM transceiver. To enhance the system performance, we need to use bit-loading to match the PLC channel which consists of subchannels with great variety. We also develop a bit-loading scheme which can significantly improve the system performance since conventional bit-loading
algorithms are not appropriate for IDMA-OFDM systems.
Subjects
電力線通訊
交織多址
正交分頻多工
位元承載
Powerline communication
IDMA
OFDM
Bit-loading
Type
thesis