Title :
An Improved Algorithm for Fast Bit Synchronization Based on π/4-DQPSK in Underwater Acoustic Communication
Author :
Li, Lizhi ; Sun, Fengyu ; Shi, Renghui ; Zhao, Xiaoqun
Author_Institution :
Coll. of Electron. & Inf. Eng., Tongji Univ., Shanghai, China
Abstract :
This paper draws on a bit synchronization algorithm used for terrestrial wireless communications π/4-DQPSK modulation mode and shapes the algorithm based on the characteristics of the Doppler effect of underwater acoustic channel. Simulation results show that the improved algorithm is more robust against the Doppler effect of underwater acoustic channel while maintaining the good performance of the original algorithm.
Keywords :
differential phase shift keying; quadrature phase shift keying; radiocommunication; synchronisation; telecommunication channels; underwater acoustic communication; π/4-DQPSK; bit synchronization algorithm; fast bit synchronization; terrestrial wireless communications; underwater acoustic channel; underwater acoustic communication; Doppler frequency shift; bit synchronization; pi/4-DQPSK modulation; underwater acoustic communication;
Conference_Titel :
Information Science and Engineering (ISISE), 2009 Second International Symposium on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-6325-1
Electronic_ISBN :
978-1-4244-6326-8
DOI :
10.1109/ISISE.2009.75
