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Divsalar, Dariush

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Divsalar, Dariush

Dariush Divsalar, Adjunct Professor

Senior Research Scientist, Jet Propulsion Laboratory, 1999
Fellow, IEEE, 1997
NASA Exceptional Engineering Achievement Medal, 1996




Dariush Divsalar received the Master, Engineer, and Ph.D. degrees in electrical engineering from the University of California, Los Angeles (UCLA), in 1975, 1977, and 1978 respectively. Since then, he has been with the Jet Propulsion Laboratory (JPL), California Institute of Technology (Caltech), Pasadena, where he is a Principal Scientist. At JPL, he has been involved with developing state-of-the-art technology for advanced deep-space communications systems and future NASA space exploration. He is also an Adjunct Professor of Electrical Engineering at University of California Los Angeles (UCLA). He has been member of Advisory board for many private companies and consultant to the industry. Since 1986, he has taught graduate courses in communications and coding at UCLA and Caltech. He has published more than 200 papers, coauthored a book entitled Introduction to Trellis-Coded Modulation with Applications, contributed to two other books, and holds 22 U.S. patents. The Institute for Scientific Information has recognized Dariush Divsalar as highly cited researcher. He received many group achievement awards for various NASA projects. He has also received over 40 NASA Tech Brief awards for new technologies. The IEEE Communications Society has selected one of his papers for inclusion in a book entitled THE BEST OF THE BEST: FIFTY YEARS OF COMMUNICATIONS AND NETWORKING RESEARCH, containing the best 56 key research papers ever published in the Society’s 50-year history. He served as an Area Editor for the IEEE Transactions on Communications from 1989 to 1996.

Research Interests

Information theory, Communication theory, Bandwidth efficient combined coding modulation techniques, Spread spectrum systems and mutual user interference cancellation for CDMA, Turbo codes, Binary and non-binary LDPC codes, Iterative decoding.

Awards and Recognitions

  • 2008 best joint paper award of the IEEE Information Theory and IEEE Communication Theory Societies
  • 2000 best paper award for “A simple tight bound on error probability of block codes with application to turbo codes,” Jet Propulsion Laboratory, California Institute of Technology
  • 1998 Hugh Fosque best paper award for “Code Performance as a function of block size.” Jet Propulsion Laboratory, California Institute of Technology
  • 1988 best paper award of the IEEE Transactions on Vehicular Technology


  • E. Biglieri, D. Divsalar, P. J. McLane and M. K. Simon, Introduction to Trellis-Coded Modulation with Applications, MacMillian, 1991.
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