Stacked-carrier discrete multiple tone communication technology

Details Stacked-carrier discrete multiple tone communication technology Stacked-carrier discrete multiple tone communication technology

1997-02-24

2000-10-03

Pham, Chi H.

Multiplex communications

Generalized orthogonal or special mathematical techniques

Particular set of orthogonal functions

370335, 375347, H04Q 700

Patent

active

061282766

ABSTRACT:
A "stacked-carrier" spread spectrum communication system based on frequency domain spreading that multiplies a time-domain representation of a baseband signal by a set of superimposed, or stacked, complex sinusoid carrier waves. In a preferred embodiment, the spreading energizes the bins of a large fast Fourier transform (FFT). This provides a considerable savings in computational complexity for moderate output FFT sizes. Point-to-multipoint and multipoint-to-multipoint (nodeless) network topologies are possible. A code-nulling method is included for interference cancellation and enhanced signal separation by exploiting the spectral diversity of the various sources. The basic system may be extended to include multi-element antenna array nulling methods also for interference cancellation and enhanced signal separation using spatial separation. Such methods permit directive and retrodirective transmission systems that adapt or can be adapted to the radio environment. Such systems are compatible with bandwidth-on-demand and higher-order modulation formats and use advanced (maximum-SINR) despreader adaptation algorithms.

REFERENCES:
patent: 4383332 (1983-05-01), Glance et al.
patent: 5255210 (1993-10-01), Gardner et al.
patent: 5260968 (1993-11-01), Gardner et al.
patent: 5299148 (1994-03-01), Gardner et al.
patent: 5504775 (1996-04-01), Chouly et al.
patent: 5548582 (1996-08-01), Brajal et al.
patent: 5584057 (1996-12-01), Dent
patent: 5592471 (1997-01-01), Briskman
patent: 5612978 (1997-03-01), Blanchard et al.
patent: 5663990 (1997-09-01), Bolgiano et al.
patent: 5706275 (1998-01-01), Zhengdi
patent: 5742583 (1998-04-01), Scott
patent: 5757766 (1998-05-01), Sugita
patent: 5771224 (1998-06-01), Seki et al.
patent: 5781845 (1998-07-01), Dybdal et al.
patent: 5799000 (1998-08-01), Hoole
patent: 5864543 (1999-01-01), Hoole
patent: 5872814 (1999-02-01), McMeekin
patent: 5889814 (1999-03-01), Simmons
patent: 5896425 (1999-04-01), Hirano et al.
patent: 5907577 (1999-05-01), Hoole
patent: 5909641 (1999-06-01), Simmons
patent: 5914981 (1999-06-01), Veintimilla
patent: 5923700 (1999-07-01), Zhang
patent: 5933421 (1999-08-01), Alamouti et al.
Kondo, et al., "Multicarrier CDMA System . . . ", IEEE Mar. 1994 #0-7803-1927, pp. 1640-1644.
Chouly, et al., "Orthogonal multicarrier . . . ", IEEE 1993, #0-7803-0917, pp. 1723-1728.
Sourour, et al., "Two Stage Co-channel . . . ", IEEE, PIMRC '94, pp. 189-193.
Boulle, et al., "An Overview of Trellis . . . ", IEEE PIMRC '94, pp. 105-109.
Tangemann, "Influence of the User Mobility . . . ", IEEE, PIMRC '94, pp. 745-749.
Tsoulos, et al., "Application of Adaptive . . . ", IEEE Mar. 1994, #1-7803-1927, pp. 615-619.
Chandler, et al., "An ATM-CDMA Air Interface . . . " IEEE PIMRC '94, pp. 110-113.
Bar-Ness, et al., "Synchronous Multi-User . . . ", IEEE PIMRC '94, pp. 184-188.
Liu, et al., "Experimental Studies of Space . . . ", 1994 IEEE #0-7803-1825, pp. 800-804.
van de Wiel, "Adaptive Equalization Structures . . . ", IEEE PIMRC '94, pp.253-255.
Naguib, et al., "Performance of CDMA Cellular . . . ", 1994 IEEE #0-7803-1825, pp. 795-799.
Weis, "A Novel Algorithm for Flexible Beam Forming . . . ", IEEE PIMRC '94, pp. 729a-729e.
Talwar, et al., "Reception of Multiple Co-Channel . . . ", 1994 IEEE #0-7803-1825, pp. 790-794.
Forssen, et al., "Adaptive Antenna Arrays for GSM900/DCS1800", Mar. 1994 IEEE, pp. 605-609.
Kaiser, "On the Performance of Different Detection Techniques . . . ", 1995 unpublished report.
Yee, et al., "BER of Multi-Carrier CDMA in an Indoor . . . ", IEEE Mar. 1993 #1058-6393, pp. 426-430.
Yee, et al., "Controlled Equalization of Multi-Carrier . . . ", Mar. 1994 IEEE 0-7803-1927, pp. 1665-1669.
Cacopardi, et al., "Channel Equalization of Indoor . . . ", 1994 unpublished report.
Agee, "The Property-Restoral Approach to Blind Adaptive Signal . . . ", 1989 dissertation.
Yee, et al., "Multi-Carrier CDMA in Indoor Wireless . . . ", IEICE Jul. 1994 vol. E77-B, pp. 900-904.
Reiners et al., "Multicarrier Transmission Technique . . . ", Mar. 1994 IEEE 0-7803-1927, pp. 1645-1649.
DaSilva, et al., "Multicarrier Orthogonal CDMA Signals . . . ", Jun. 1994 IEEE #0733-8716, pp. 842-852.
Rappaport, et al., "Wireless Personal Communications . . . ", 1994 report.
Kaleh, "Frequency-Diversity Spread-Spectrum Communication . . . ", Sep. 1994 unpublished report.
Burr, et al., "Capacity of an Adaptive TDMA Cellular . . . ", IEEE PIMRC '94, pp. 242-246.
Fettweis, et al., "On Multi-Carrier Code Division . . . ", Mar. 1994 IEEE #0-7803-1927, pp. 1670-1674.
P. Jung, et al., "On Multicarrier CDMA Mobile Radio Systems with Joint Detection and Coherent Receiver Antenna Diversity", 5.sup.th IEEE International Conference on Universal Personal Communications, vol. 1, Sep. 1996, pp. 61-65.
PCT Search Report from WO98/37638.

Affiliated with

Also associated with

Rating

Stacked-carrier discrete multiple tone communication technology does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Stacked-carrier discrete multiple tone communication technology , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stacked-carrier discrete multiple tone communication technology will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-202214