Spread-spectrum techniques have been in use for military purposes for sometime now, because of their desirable anti-jam and low-probability-of-intercept capabilities. They have also been employed in satellite applications in a code-division multiple-access (CDMA) mode, and as useful tools for precise ranging and navigation. More recently, thanks to its CDMA capability, spread-spectrum has been viewed as a promising design alternative for many commercial systems, such as portable and mobile cellular communications (both voice and data), wireless local area networks (LANs), mobile-satellite systems, optical networks, etc. Its commercial use has already been ensured by the cellular industry through the establishment of the industry standard IS-95. Other concepts based on CDMA are presently under consideration internationally for the implementation worldwide of a new generation cellular system (IMT2000/UMTS).
The purpose of this course is to convey
the fundamentals behind the conception, analysis and design of such systems.
The following outline will be followed:
II. Uncoded performance for direct sequence (DS), frequency hopping (FH) and time hopping (TH) systems.
III. Spectral considerations; power spectral density computations; channel and interference modelling; bandwidth and dimensionality; spreading ratio and processing gain.
IV. DS and FH single-user performance.
V. Brief review of forward error correction (FEC) coding.
VI. Coded performance of DS and FH systems.
VIII. Wideband signal detection and classification.
IX. Multi-user (CDMA) links and networks; basic concepts for cellular CDMA; brief review of the IS-95 standard and other significant proposals.
Assistant: Gent Paparisto
Office : EEB 518
Phone : (213) 740-4673
Fax : (213) 740-8729
E-mail : PAPARIST@SOLAR.USC.EDU
Office hours : Monday, 11:00am - 12:00pm , Wednesday, 3:30 - 4.30pm
Office : EEB 505
Phone : (213) 740-4669
E-mail : YOKIM@SOLAR.USC.EDU
Ms. Isako Wakimoto
Phone : (213) 740-0116
Digital Communications (EE 564 or equivalent) is strictly required.
Communication Systems (EE 567),
Error Correcting Coding (EE 568), and
Advanced Topics in Random Processes (EE 562b) would be very helpful.
R.L. Peterson, R.E. Ziemer and D.E. Borth,
Introduction to Spread Spectrum Communications, Prentice Hall, 1995.
Instructor's notes will be sold by ITV Center.
M.K. Simon, J.K. Omura, R.A. Scholtz, and B.K. Levitt,
Spread Spectrum Communications Handbook, Revised Edition, McGraw Hill, 1994.
Principles of Spread Spectrum Multiple-Access Communication, Addison-Wesley, 1995.
Roughly one per week.
Total score will be weighted by 50% if less than 3 days late.
If received later no credit will be given.
Remote students: please mail the morning of the due day.
Date to be determined.
Comprehensive, Thursday, April 30, 1998 , 11:00 - 1:00pm
Any violations of the University
Student Conduct Code will be referred to the Office of Student Conduct.
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