[1] A . Bensky, Short-Range Wireless Communication: Fundamentals
of RF System Design and Application, 2nd ed. Burlington, MA:
Newnes, 2004, pp. 115–150.
[2] S . Ahson and M. Ilyas, WiMAX: Standards and Security. Boca Raton,
FL: CRC Press, 2008, pp. 201–210.
[3] J. P. K. Gilb, “Bluetooth radio architectures,” in Radio Frequency
Integrated Circuits (RFIC) Symp., Dig. Papers. Jun. 2000, pp.
3–6.
[4] J. R. Barry, Wireless Infrared Communications. Boston, MA: Kluwer
Academic, 1994, pp. 50–54.
[5] K. Yutaka, O. Yoshihiro, and U. Hiroshi, “International standard of
infrared data communication, IrDA ,” Shapu Giho/Sharp Tech. J.,
no. 68, pp. 11–17, Aug. 1997.
[6] B . Matthieu, B. Joao, M. R. D. Rodrigues, and S. W. McLaughlin,
“Wireless information—Theoretic security,” IEEE Trans. Inf.
Theory, vol. 54, no. 6, pp. 2515–2534, Jun. 2008.
[7] J. Nakrop, W. Sodsai, N. Prasit, and S. Atipong, “Security system
against asset theft by using radio frequency identification technology,”
in 5th Int.Conf. Electrical Engineering/Electronics, Computer,
Telecommunications, and Information Technology, vol. 2, May 2008,
pp. 761–764.
[8] T. Tsutomu, S. Masahiro, and Y. Susumu, “Multipath delay estimation
for indoor wireless communication,” in IEEE Vehicular Technology
Conf., May 1990, pp. 401–406.
[9] A . Gachagan, G. Hayward, S. P. Kelly, and W. Galbraith, “Characterization
of air-coupled transducers,” IEEE Trans. Ultrason. Ferroelectr.
Freq. Control, vol. 43, no. 4, pp. 678–689, 1996.
[10] D . M. Mills and S. W. Smith, “Multilayered PZT/polymer composites
to increase signal to noise ratio and resolution for medical
ultrasound transducers,” IEEE Trans. Ultrason. Ferroelectr. Freq.
Control, vol. 49, no. 7, pp. 1005–1014, Jul. 2002.
[11] C . Li, D. A. Hutchins, and R. J. Green, “Short-range ultrasonic
digital communications in air,” IEEE Trans. Ultrason. Ferroelectr.
Freq. Control, vol. 55, no. 4, pp. 908–918, Apr. 2008.
[12] S . Holm, “Airborne ultrasound data communications: The core of
an indoor positioning system,” in Proc. IEEE Ultrason. Symp., Rotterdam,
The Netherlands, vol. 3, Sep. 2005, pp. 1801–1804.
[13] R . A. Zurek, M. L. Charlier, and A. Dietrich, “Omnidirectional ultrasonic
communication system,” U.S. Patent 6 363 139, Mar. 26,
2002.
[14] H. D. Haynes, M. A. Akerman, and V. M. Baylor, “Ultrasonic communication
project phase 1 final report,” National Security Program,
Oak Ridge, TN, Office Rep. Y/NSP-252, Jun. 2000.
[15] K. Mizutani, N. Wakatsuki, and K. Mizutani, “Acoustic communication
in air using differential biphase shift keying with influence of
impulse response and background noise,” Jpn. J. Appl. Phys.,vol. 46,
pp. 4541–4544, Jul. 2007.
[16] H. Ochi and T. Fukuchi “Development of tilted toroidal beam wideband
transducer using quadrature phase shift keying for underwater
acoustic communication,” Jpn. J. Appl. Phys., vol. 46, pp. 4961–
4967, Jul. 2007.
[17] A . Mansukhani, “Wireless digital modulation,” Appl. Microw. Wirel.,
vol. 8 no. 4, Nov.–Dec. 1996, pp. 501–504.
[18] D . W. Schindel, D. S. Forsyth, D. A. Hutchins, and A. Fahr, “Aircoupled
ultrasonic NDE of bonded aluminium lap joints,” Ultrasonics,
vol. 35, no. 1, pp. 1–6, Feb. 1997.
[19] D . W. Schindel, D. A. Hutchins, L. Zou, and M. Sayer, “The design
and characterization of micromachined air-coupled capacitance
transducers,” IEEE Trans. Ultrason. Ferroelectr. Freq. Control, vol.
42, no. 1, pp. 42–51, Jan. 1995.
[20] O . Hiroshi, W. Yoshitaka, and S. Takuya “Experiments on acoustic
communication with quadrature amplitude modulation in multipath
environment,” Jpn. J. Appl. Phys., vol. 43, no. 5B, pp. 3140–3145,
May 2004.