Title :
A new symbol timing synchronization scheme for direct modulation optical OFDM PON
Author :
Bi, Meihua ; Xiao, Shilin ; He, Hao ; Li, Jun ; Zhou, Zhao
Author_Institution :
Dept. of Electron. Eng., Shanghai Jiao Tong Univ., Shanghai, China
Abstract :
A new symbol timing synchronization scheme based on a tailored training sequence is proposed and implemented in direct modulation and direct detection optical OFDM PON (DM-DD OFDM PON) systems. This tailored training sequence is added in front of OFDM data symbols. By using the received signal correlation operation, receiver calculates the peak value of metrics to achieve accurate symbol timing synchronization. The performance of this new timing synchronization scheme is presented by simulation and experiment. The results show that the proposed scheme has high synchronization accuracy and is suit for DM-DD OFDM PON system.
Keywords :
OFDM modulation; correlation methods; multiplexing; passive optical networks; synchronisation; OFDM data symbol; direct detection optical OFDM PON; direct modulation optical OFDM PON; orthogonal frequency division multiplexing passive optical network; received signal correlation operation; symbol timing synchronization; training sequence; Abstracts; Passive optical networks; Signal to noise ratio; OFDM-PON; Optical orthogonal frequency division multiplexing; Symbol timing synchronization;
Conference_Titel :
Communications and Photonics Conference and Exhibition, 2011. ACP. Asia
Conference_Location :
Shanghai
Print_ISBN :
978-0-8194-8961-6
