Hybrid spread spectrum radio system

Smith, Stephen F.; Dress, William B.

Hybrid spread spectrum radio system

Patent · Mon Feb 01 23:00:00 EST 2010

OSTI ID:1015202

Smith, Stephen F. ^[1]; Dress, William B. ^[2]

London, TN
Camas, WA

Systems and methods are described for hybrid spread spectrum radio systems. A method includes modulating a signal by utilizing a subset of bits from a pseudo-random code generator to control an amplification circuit that provides a gain to the signal. Another method includes: modulating a signal by utilizing a subset of bits from a pseudo-random code generator to control a fast hopping frequency synthesizer; and fast frequency hopping the signal with the fast hopping frequency synthesizer, wherein multiple frequency hops occur within a single data-bit time.

Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: AC05-00OR22725

Assignee:: UT-Battelle, LLC (Oak Ridge, TN)

Patent Number(s):: 7,656,931

Application Number:: 10/750,432

OSTI ID:: 1015202

Country of Publication:: United States

Language:: English

References (9)

Blind joint soft-detection assisted slow frequency-hopping multicarrier DS-CDMA Yang, Lie-Liang; Hanzo, L. IEEE Transactions on Communications, Vol. 48, Issue 9, p. 1520-1529 https://doi.org/10.1109/26.870019	journal	September 2000
The bandwidth efficiency increasing method of multi-carrier CDMA and its performance evaluation in comparison with DS-CDMA with RAKE receivers Oh, Jung-Yeol; Lim, Myoung-Seob 1999 IEEE 49th Vehicular Technology Conference (Cat. No.99CH36363) https://doi.org/10.1109/VETEC.1999.778118	conference	May 1999
Multi-Carrier Modulated Orthogonal Code-Division Multiple Access (MCM-OCDMA) Thomas Magill, D. Multi-Carrier Spread-Spectrum https://doi.org/10.1007/978-1-4615-6231-3_12	book	January 1997
The study of FH/MCFD/SSMA/DPSK wireless communication systems Enjia, Li; Haige, Xiang ICCT'98. 1998 International Conference on Communication Technology. Proceedings (IEEE Cat. No.98EX243) https://doi.org/10.1109/ICCT.1998.743250	conference	October 1998
Overview of multicarrier CDMA Hara, S.; Prasad, R. IEEE Communications Magazine, Vol. 35, Issue 12 https://doi.org/10.1109/35.642841	journal	January 1997
Performance Analysis of a New Multi-Code and Multi-Carrier Hybrid Transmission Scheme for Future Broadband Mobile Communication Systems Harada, Hiroshi; Prasad, Ramjee Multi-Carrier Spread-Spectrum https://doi.org/10.1007/978-1-4615-6231-3_5	book	January 1997
Comparative study of interference cancellation schemes in multi-user detection Koulakiotis, D. IEE Colloquium on CDMA Techniques and Applications for Third Generation Mobile Systems https://doi.org/10.1049/ic:19970712	conference	January 1997
Islets General No authors listed Diabetic Medicine, Vol. 16, Issue S1, p. 78-80 https://doi.org/10.1111/dme.1999.16.s1.78	journal	May 1999
Performance analysis of coded multicarrier spread-spectrum systems in the presence of multipath fading and nonlinearities Jong, Je-Hong; Stark, W. E. IEEE Transactions on Communications, Vol. 49, Issue 1, p. 168-179 https://doi.org/10.1109/26.898260	journal	January 2001

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