Title :
Performance Analysis of Different Pilot-Symbol Patterns in Underwater Acoustic OFDM System
Author :
Zhou, Feng ; Qiao, Gang ; Li, Na
Author_Institution :
Coll. of Underwater Acoust. Eng., Harbin Eng. Univ., Harbin
Abstract :
The underwater acoustic channel is very complex where Doppler frequency offsets, narrow bandwidth, serious multi-path time delay interference and frequency selective deep fading obstruct the development of high speed and fidelity underwater data transmissions. Orthogonal Frequency Division Multiplexing (OFDM) is a kind of novel paralleling transmission technology. In this paper, we mainly discuss three different pilot structures in channel estimation in OFDM underwater acoustic communication system and analyze the performance of channel estimation based on different pilot structure by simulation.
Keywords :
OFDM modulation; channel estimation; underwater acoustic communication; Doppler frequency offsets; channel estimation; frequency selective deep fading; multipath time delay interference; orthogonal frequency division multiplexing; pilot-symbol patterns; underwater acoustic communication; Analytical models; Bandwidth; Channel estimation; Data communication; Delay effects; Fading; Interference; OFDM; Performance analysis; Underwater acoustics;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2008. WiCOM '08. 4th International Conference on
Conference_Location :
Dalian
Print_ISBN :
978-1-4244-2107-7
Electronic_ISBN :
978-1-4244-2108-4
DOI :
10.1109/WiCom.2008.193
