A channel estimation algorithm for optical orthogonal frequency division multiplexing systems

A simple channel estimation （UE） scheme, which is pilotaided with just a little number oI pilots inserted in the Itrst half part of the subcarriers, is proposed and simulated for resisting the fiber dispersion in optical orthogonal fre quency division multiplexing （OFDM） systems. The simulation resu...

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Bibliographic Details
Published inOptoelectronics letters Vol. 9; no. 3; pp. 217 - 220
Main Authors Wang, Dong, Zou, Nian-yu, Wang, Wei-dong, Zhang, Ying-hai
Format Journal Article
LanguageEnglish
Published Heidelberg Tianjin University of Technology 01.05.2013
Subjects
Lasers
OFDM
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
仿真结果
传输系统
信道估计算法
子载波
接收灵敏度
正交频分复用系统
飞行员
Orthogonal Frequency Division Multiplex
Orthogonal Frequency Division Multiplex Signal
Cyclic Prefix
Chromatic Dispersion
Linear Minimum Mean Square Error
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Summary:A simple channel estimation （UE） scheme, which is pilotaided with just a little number oI pilots inserted in the Itrst half part of the subcarriers, is proposed and simulated for resisting the fiber dispersion in optical orthogonal fre quency division multiplexing （OFDM） systems. The simulation results verify that the receiver sensitivity is im proved by 23 dBm for bit error rate （BER） of l03 with the proposed CE algorithm than that with other kinds of CE algorithms based on linear square principle. The good constellation performance for a 40 Gbit/s transmission system can be also obtained by the nronosed scheme.
Bibliography:A simple channel estimation （UE） scheme, which is pilotaided with just a little number oI pilots inserted in the Itrst half part of the subcarriers, is proposed and simulated for resisting the fiber dispersion in optical orthogonal fre quency division multiplexing （OFDM） systems. The simulation results verify that the receiver sensitivity is im proved by 23 dBm for bit error rate （BER） of l03 with the proposed CE algorithm than that with other kinds of CE algorithms based on linear square principle. The good constellation performance for a 40 Gbit/s transmission system can be also obtained by the nronosed scheme.
12-1370/TN
ISSN:1673-1905
1993-5013
DOI:10.1007/s11801-013-2409-8