Title :
Evaluation and Demonstration of Acoustic OFDM
Author :
Nakashima, Yusuke ; Matsuoka, Hosei ; Yoshimura, Takeshi
Author_Institution :
NTT DoCoMo Inc., Yokosuka
fDate :
Oct. 29 2006-Nov. 1 2006
Abstract :
We describe the transmission performance of acoustic OFDM. Acoustic OFDM is an OFDM system with free air links. We perform a simulation and a measurement to confirm that the transmission data rate of 0.9 kbps with BER below 0.1 can be obtained over distances to 4 m with angular offsets of up to 30 degrees. The system is robust to various noises and supports many audio codecs. The acoustic OFDM system can operate in a wide range of environments.
Keywords :
OFDM modulation; audio acoustics; audio coding; codecs; error statistics; BER; acoustic OFDM transmission performance; aerial data transmission; angular offsets; audio codecs; bit rate 0.9 kbit/s; free air links; Acoustic devices; Acoustic distortion; Acoustic noise; Loudspeakers; Noise robustness; OFDM modulation; Phase modulation; Phase shift keying; Signal generators; Working environment noise;
Conference_Titel :
Signals, Systems and Computers, 2006. ACSSC '06. Fortieth Asilomar Conference on
Conference_Location :
Pacific Grove, CA
Print_ISBN :
1-4244-0784-2
Electronic_ISBN :
1058-6393
DOI :
10.1109/ACSSC.2006.355061
