Title :
Channel estimation based on linear interpolation algorithm in DDO-OFDM system
Author :
Zhang, Jing ; Qiu, Kun ; Li, Yonggang ; Zhang, Hongbo ; Deng, Mingliang
Author_Institution :
Key Lab. of Broadband Opt. Fiber Commun. & Commun. Networks Technol., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
The channel estimation result of non-pilot subcarriers mainly depends on adjacent pilot subcarriers. A linear interpolation algorithm has been applied to the channel estimation of non-pilot subcarriers. The performance of interpolation algorithm has been simulated in a 10Gb/s direct-detection optical orthgonal frequency division multiplexing(DDO-OFDM) communication system. Constellation convergence is greatly improved.
Keywords :
OFDM modulation; channel estimation; interpolation; optical modulation; DDO-OFDM system; bit rate 10 Gbit/s; channel estimation; constellation convergence; direct-detection optical orthgonal frequency division multiplexing; linear interpolation algorithm; nonpilot subcarrier; Algorithm design and analysis; Channel estimation; Interpolation; OFDM; Optical fibers; Transfer functions;
Conference_Titel :
Communications and Photonics Conference and Exhibition (ACP), 2010 Asia
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-7111-9
DOI :
10.1109/ACP.2010.5682649
