Method and apparatus for generating preamble using chaotic...

Multiplex communications – Pathfinding or routing – Switching a message which includes an address header

Reexamination Certificate

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C370S476000

Reexamination Certificate

active

07457291

ABSTRACT:
A preamble generating method which includes computing (N) chaotic samples; transforming the (N) chaotic samples into (N) binary values of certain bits, respectively, and computing a chaotic sequence bit successively using the (N) binary values; and generating a preamble based on the chaotic sequence bit. By using the sequence bit from the chaotic samples, a plurality of preambles with optimum auto-correlation and cross-correlation properties is generated.

REFERENCES:
patent: 2001/0038674 (2001-11-01), Trans
Park et al, “Preamble Contribution for the IEEE 802.15.3a standard”, Jul. 2003, submitted for Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs).
Maggio et al, “Pseudo-Chaotic Time Hopping For UWB Impulse Radio”, IEEE Transactions on Circuits and Systems- I: Fundamental Theory and Applications, vol. 48, No. 12, Dec. 2001.
http://www.wikipedia.org/:defining Bluetooth and Piconet.
Dmitriev et al., High-Rate-Digital Data Transmission Using Dynamic Chaos, Soviet Journal of Communications Technology and Electronics, Scripta Technica, Silver Spring, MD, US, vol. 44, No. 3, Mar. 1999 pp. 302-306.
Dimitriev et al., “Experiments on Ultrawideband Direct Chaotic Data Transmission in the Microwave Band”, Journal of Communications Technology and Electronics, vol. 47, No. 10, 2002, pp. 1112-1120.
Zakharov et al., “Detection of preamble of random access burst in W-CDMA system”, Personal, Indoor and Mobile Radio Communications, 2000, PIMRC 2000, The 11th IEEE International Symposium on Sep. 18-21, 2000 Piscataway, NJ, USA, IEEE, Sep. 18, 2000 pp. 82-86.

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