Channel estimation for power line OFDM systems with unknown colored noise exploiting real signal transmission

2009 ◽  
Author(s):  
Ronghong Mo ◽  
Ser Wah Oh ◽  
Yonghong Zeng ◽  
Suwandi R. Lie
Keyword(s):  
Channel Estimation ◽  
Colored Noise ◽  
Signal Transmission ◽  
Power Line ◽  
Ofdm Systems ◽  
Real Signal

Channel Estimation Based on Compressed Sensing Technique for Low-Voltage Power Line Communication

2018 ◽  
Vol 13 (10) ◽  
pp. 1468-1472
Author(s):  
Tao Liu ◽  
Yong-Jian Wang ◽  
Yu-Fei Zhao
Keyword(s):  
Channel Estimation ◽  
Compressed Sensing ◽  
Orthogonal Frequency Division Multiplexing ◽  
Low Voltage ◽  
Matching Pursuit ◽  
Estimation Method ◽  
Power Line ◽  
Power Line Communication ◽  
Ofdm Systems ◽  
Channel Information

Broadband low-voltage power line communication (PLC) has many advantages including less investment cost, construction speed, and convenient access. Since the orthogonal frequency division multiplexing (OFDM) technology has strong anti-jamming and anti-frequency selective fading characteristics naturally it becomes a better low voltage power line communication solution. We proposed an OFDM channel estimation method based on compressed sensing (CS) technique according to the channel characteristics of low-voltage power lines. CS algorithm in OFDM system was discussed and an orthogonal matching pursuit (OMP) algorithm was applied to reconstruct the PLC channel information. The simulation results showed that the communication channel estimation method based on CS technique was feasible in PLC system, and the validity of information transmission in OFDM systems can be enhanced.

Channel Estimation and Symbol Detection with ICI Cancellation Based on Superimposed Training for OFDM Systems

2012 ◽  
Vol E95.B (9) ◽  
pp. 2926-2930
Author(s):  
Qinjuan ZHANG ◽  
Muqing WU ◽  
Qilin GUO ◽  
Rui ZHANG ◽  
Chao Yi ZHANG
Keyword(s):  
Channel Estimation ◽  
Ofdm Systems ◽  
Superimposed Training ◽  
Symbol Detection ◽  
Ici Cancellation

A Low-Complexity Sparse Channel Estimation Method for OFDM Systems

2010 ◽  
Vol E93-B (8) ◽  
pp. 2211-2214
Author(s):  
Bin SHENG ◽  
Pengcheng ZHU ◽  
Xiaohu YOU ◽  
Lan CHEN
Keyword(s):  
Channel Estimation ◽  
Estimation Method ◽  
Low Complexity ◽  
Ofdm Systems ◽  
Sparse Channel Estimation ◽  
Sparse Channel
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