Telecommunications – Transmitter and receiver at separate stations – Distortion – noise – or other interference prevention,...
Reexamination Certificate
2004-12-02
2008-05-20
Urban, Edward F. (Department: 2618)
Telecommunications
Transmitter and receiver at separate stations
Distortion, noise, or other interference prevention,...
C455S067130, C375S346000, C375S350000
Reexamination Certificate
active
07376394
ABSTRACT:
A method and system for wireless communications between a sender and a receiver enables effective blocking of interference signals by other senders and improving the channel capacity. The receiver uses two or more receiving devices, such as antennas or smart antennas, to receive multiple wireless input signals. By performing a noise-transparent autocorrelation matching analysis on the multiple input signals, the receiver derives an anti-interference filter for interference-blocking action, without the need for information of the interfering vector. The information derived by the receiver may be further used to control the reception by the receiving devices of the receiver, or transmitted to the sender to control its transmission, such that the signal vector may be set to be parallel to the obtained filtering vector to achieve an enhanced channel capacity that may exceed the limit imposed by the well-known Shannon channel capacity of the original channel.
REFERENCES:
patent: 7106801 (2006-09-01), Guruprasad
patent: 7155165 (2006-12-01), Kowalewki
patent: 2002/0048286 (2002-04-01), Brunel
Oppenheim, A.V., et al., Discrete-Time Signal Processing, Chapter 7; 7.4—“Design of Fir Filters by Windowing”, pp. 444-474, Prentice Hall, Inc. 1989.
Vaidyanathan, P.P., Multirate Systems and Filter Banks, Part 3; 11.3—“The Wavelet Transform”, pp. 481-500; Prentic Hall, Inc. 1993.
Proakis, J.G.,Digital Communications, Chapter 12;12-2-2—“Some Applications of DS Spread Spectrum Signals”, pp. 712-415; McGraw Hill, Inc., 1995.
Chevreuil, A., et al., “Blind Equalization in the Presence of Jammers and Unknown Noise; Solutions Based on Second-Order Cyclostationary Statistics”,IEEE Trans. on Signal Processing, pp. 259-263, vol. 46, No. 1, (Jan. 1998).
Belouchrani A., et al., A Two-Sensor Array Blind Beamformer for Direct Sequence Spread Spectrum Communications;IEEE Trans on Signal Processing, pp. 2191-2199, vol. 47, No. 8 (Aug. 1999).
Liu, R., et al., “Autocorrelation-A New Differentiation Factor for Random Multiple Access Wireless Communication”,Proc. ISCAS, vol. III, pp. 643-646, Phoenix, AZ (May 2002).
Winters J.H., ;Optimal Combining In Digital Mobile Radio with Cochannel Interference,IEEE J. Sel. Areas Communication, vol. 2, No. 4., pp. 528-539 (Jul. 1984).
Viterbi, A.J. et al., “CDMA: Principle of Spread Spectrum Communication, Chapter 6; 6.1 Capacity, Coverage, and Control of Spread Spectrum Multiple Access Networks”, pp. 179-180;Addison-Wesley Longman, Inc.(1995).
Proakis, John G., “Digital Communications”, 4th Edition, Chapter 15, “Multiuser Communications” McGraw-Hill, pp. 896-899, 2001.
Luo, Hui et al., “Blind Equalization for MIMO FIR Channels Based Only on Second Order Statistics by Use of Pre-Filters”,In Proc. of IEEE Workshop on Signal Processing Advances in Wireless Communications, Annapolis, MD, USA, pp. 106-109, 1999.
Luo, Hui et al., “The Autocorrelation Matching Method for Distributed MIMO Communications over Unknown FIR Channels”,In Proc. of ICASSP, Salt Lake City, UT, USA, pp. 2161-2164, 2001.
Xavier, Jo{hacek over (a)}o M.F., et al., “Closed-form Blind Channel Identification and Source Separation in SDMA Systems Through Correlative Coding”,IEEE Journal on Selected Areas in Communications, vol. 16, No. 8, pp. 1506-1517, 1998.
Lindgren, Ulf, AI. et al., “Source Separation Using A Criterion Based on Second-Order Statistics”,IEEE Trans, on Signal Processing, vol. 46, No. 7, pp. 1837-1850, 1998.
Hua, Yingbo, “Blind Identification and Equalization of Channels Driven by Colored Signals”,Signal Processing Advances in Wireless&Mobile Communications, vol. i, Chapter 4, pp. 113-137, Prentice Hall, 2001.
Liu, Rueywen, et al., “Multi-User Blind Channel Equalization and Signal Discrimination by NIA Matched Filters”,in Proc. of IEEE CAS Notre. Dame Workshop on Wireless Communications and Networking, Notre Dame, IN, pp. 1-4, Aug., 2001.
Scaglione, A., et al., “Linear Preceding for Estimation and Equalization of Frequency-Selective Channels”,Signal Processing Advances in Wireless&Mobile Communications, vol. 1, Chapter 9, pp. 291-337, Prentice Hall, 2001.
Tarokh, Vahid, et al., “Space-Time Block Codes from Orthogonal Designs,”IEEE Trans. on Information Theory, vol. 45, No. 5, pp. 1456-1467, Jul. 1999.
Luo, Hui, et al., “Apply Autocorrelation Matching Method to Outdoor Wireless LAN on Co-Channel Interference Suppression and Channel Equalization”,in Proc. of Wireless Communications Networks Conference, Orlando, FL, pp. 459-464, Mar. 17-21, 2002.
Sonh, Liang, et al., “A New Multiple-Access Scheme Based on the Diversity of Autocorrelation”,IEEE ICC 2003 International Conference on Communication, pp. 720-724.
Foschini, G. J., et al., “On Limits of Wireless Communication in a Fading Environment when Using Multiple Antennas”,Wireless Personal Communication, 6, pp. 311-335,1998.
Massey, J.K.,et al., “Inverses of Linear Sequential Circuits,”IEEE Trans. on Computers, vol. C-17, No. 4, pp. 330-337, Apr. 1968.
Inouyee, Yujiro, et al., “A System-Theoretic Foundation for Blind Equalization of FIR MIMO Channel Systems,”IEEE Transactions on Circuits and Systems-1, Fundamental Theory and Applications, vol. 49, No. 4, pp. 425-436, Apr. 2002.
Liu, Ruey-wen, et al., “Direct Blind Deconvolution of Multiuser-Mutlichannel Systems”,11 Int. Symp. on Circuits and Systems, Orlando, FL, pp. V-49-V-52, May 30-Jun. 2, 1999.
Kailath, Thomas “Linear Systems”, Prentice-Hall, Sec. 6.3, pp. 389-395, 1980.
Gorokhov, Alexei, et al., “Subspace-Based Techniques for Blind Separation of Convolutive Mixtures with Temporally Correlated Source,”IEEE Trans. On Circuits and Systems-1, Fundamental Theory and Applications, vol. 44, No. 9, pp. 813-820, Sep. 1997.
Tugnait, J.K., “FIR Inverses to MIMO Rational Transfer Functions with Applications to Blind Equalization,”IEEE Proc. 30th Asilomar Conf., Pacific Grove, CA, pp. 295-299, 1997.
Gantmacher, F. R., “The Theory of Matrices”, vol. 1,AMS Chelsea Publishing, New York: Chelsea, 1959.
Liu, R., et al., A System Theoretic Foundation for Blind Separation of MIMO-FIR Convolution Mixtures—IEEE Signal Processing Society Second International Workshop on Indpendent Component Analysis and Blind Signal Separation, pp. 205-210, Helsinki, Finland, Jun. 19-22, 2000.
Ketchum, J.W., et al., “Adaptive Algorithm for Estimating and Suppressing Narrow-Band Interference in PN Spread-Spectrum Systems,”IEEE Trans. Communication, vol. COM-30, No. 5, pp. 913-924, May 1982.
Milstein, L. B., et al., “An Analysis of a Real-Time Transform Domain Filtering Digital Communication System: Part I: Narrowband Interference Rejection,”IEEE Trans. on Communication, COM-28,No. 6, pp. 816-824, Jun. 1980.
Saulnier, Gary J., et al., “Wavelets and Filter Banks in Spread Spectrum Systems,” A. N. Akansu and M. J. T. Smith Eds. Subband and Wavelet Transforms: Design and Application, Kluwer, pp. 309-345, 1995.
Lee, J. S., et al., “Probability of Error Analyzes of a BFSK Frequency-Hopping System with Diversity Under Partial-Band Jamming Interference Part I: Performance of Square-Law Linear Combining Soft Decision Receiver,”IEEE Trans. Communication, vol. COM-32, pp. 645-653, Jun. 1984.
Liu, Rueywen, et al., “Anti-Jamming filtering in the Autocorrelation Domain,”IEEE Signal Processing Letters, vol. 11, No. 6, pp. 525-528.
Lee, Jhong Sam, “Overview of the Technical Basis of Qualcomm's CDMA Cellular Telephone System Design—A View of North American TIA/EIA IS-95,” Singapore ICCS, pp. 353-358, 1994 IEEE.
Luo, H., et al., “Blind Equalization for MIMO FIR Channels Based Only On Second Order Statistics by Pre-Filters,”2nd IEEE Signal Processing Worksh
Dean Raymond S.
Urban Edward F.
LandOfFree
Method and system for wireless communications using... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and system for wireless communications using..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for wireless communications using... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3983939