Title of article
LDPC Coded TDS-OFDM for PLC Systems
Author/Authors
DAI, Linglong Tsinghua University - Department of Electronic Engineering, State Key Laboratory on Microwave and Digital Communications, China , FU, Jian Tsinghua University - Department of Electronic Engineering, State Key Laboratory on Microwave and Digital Communications, China , WANG, Jun Tsinghua University - Department of Electronic Engineering, State Key Laboratory on Microwave and Digital Communications, China
From page
312
To page
318
Abstract
Powerline communications (PLC) have drawn great interest in recent years. However, most PLC standards such as HomePlug AV use the cyclic-prefix OFDM (CP-OFDM) technology. This paper presents a broadband PLC system using low density parity check (LDPC) coded time domain synchronous OFDM (TDS-OFDM), whose spectrum efficiency is about 10% higher than that of CP-OFDM. With the same bandwidth and the ability to combat the time delay spread as HomePlug AV, this system can provide a maximum throughput of 199.7 Mbps physical layer data rate. Simulations over the measured practical powerline channel in Beijing, China, show that LDPC in the TDS-OFDM system dramatically improves the bit error rate performance, and verify the feasibility and performance of the TDS-OFDM technology for PLC systems.
Keywords
powerline communications (PLC) , time domain synchronous OFDM (TDS , OFDM) , low density parity check (LDPC) , HomePlug AV , channel measurement
Journal title
Tsinghua Science and Technology
Journal title
Tsinghua Science and Technology
Record number
2535281
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