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`Dariush Divsalar
`Senior Research Scientist
`
`Dariush Divsalar received the Ph.D. degree in electrical engineering from UCLA, in
`1978. Since then, he has been with the Jet Propulsion Laboratory (JPL), California
`Institute of Technology (Caltech), 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. 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 An
`Introduction to Trellis Coded Modulation with Applications, contributed to two other
`books, and holds 19 U.S. patents in the above areas. He was corecipient of the
`1986 paper award of the IEEE Transactions on Vehicular Technology. He was also
`co recipient of the joint paper award of the IEEE Information Theory and IEEE
`Communication Theory societies in 2008. The IEEE Communication 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 has
`received over 40 NASA Tech Brief awards and a NASA Exceptional Engineering
`Achievement Medal in 1996. He served as an Area Editor for the IEEE
`Transactions on Communications from 1989 to 1996. He became a Fellow of IEEE
`in 1997 for contributions to the analysis and design of coding and modulation
`techniques for satellite, mobile, and deep-space communication systems.
`
`Education
`
`Address:
`Jet Propulsion Laboratory
`M/S 238-420
`4800 Oak Grove Dr.
`Pasadena, CA 91109
`
`Phone:
`818.393.5138
`
`Fax:
`818.354.6825
`
`1977-78 University of California, Los Angeles (UCLA), Ph. D. in Electrical
`Engineering, Dec. 1978.
`Major: Communication Systems, Department of Electrical
`Engineering.
`Minor: Computer System Modeling and Analysis, Department of
`Computer Science.
`Minor: Applied Mathematics, Department of Mathematics.
`1975-77 University of California, Los Angeles (UCLA), Engineer Degree, June 1977.
`1973-75 University of California, Los Angeles (UCLA) M.S. in Electrical Engineering, March 1975.
`
`Email:
`Click here
`
`Research Interests
`
`Research in digital communication systems, wireless communication systems, bandwidth efficient combined coding modulation
`techniques, digital signal processing, satellite communications, mobile communications. Channel coding for deep space
`communications. Spread Spectrum Systems, CDMA, Fast Frequency Hopping, Time Hopping for commercial multiple access
`systems, Acquisition and tracking for spread spectrum communications, Mutual User Interference Cancellation for CDMA, Turbo
`codes, LDPC codes and Iterative Decoding for power- and Bandwidth- limited Channels.
`
`Professional Experience
`
`1978-present. Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA.
`2000 Principal Scientist
`1999 Senior Research Scientist
`1997 Principal of Engineering Staff.
`1989 Senior Member of Technical Staff.
`1982 Member of Technical Staff.
`1978 Senior Engineer.
`1986-1997 Lecturer at UCLA, Electrical Engineering Department Teaching graduate courses in Information Theory,
`Digital Communications, Coding (TCM, and turbo codes), and Spread Spectrum Communications.
`1984-1991 Adjunct Professor at Northrop University Teaching courses in analog and digital communication systems,
`information theory and error control coding, statistical communication theory, digital communications, probability,
`stochastic processes, feedback control systems, spread spectrum communications, linear networks, computer networks,
`digital signal processing.
`1982-1996 Distinguished Lecturer at West Coast University Teaching courses in Detection of Signals in Noise, Digital
`IV 2001
`IPR2014-00921
`U.S. Pat. No. 6,023,783
`
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`Science and Technology
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`Communication Systems, Coding, Probability, Stochastic Processes, Logic Network Design, Digital Signal Processing,
`Spread Spectrum.
`
`Selected Awards
`
`38 NASA Tech Brief Awards from 1983-2009
`NASA Exceptional Engineering Achievement Medal, April 9, 1996.
`6 NASA Group Achievement Awards
`IEEE Paper Award
`Best paper of the year award for "The Performance of Trellis Coded Multilevel DPSK in a Fading Mobile Satellite
`Channel" published in IEEE Transactions on Vehicular Technology, Vol. 37, No. 2, May 1988. Award was given
`out in 1990.
`Joint paper award of the IEEE Information Theory and IEEE Communication Theory societies for Accumulate
`Repeat Accumulate Codes” published in April 2007. Award was given in 2008.
`Fellow of IEEE -- Journal Referee for IEEE societies of Communication and Information Theory. Member of IEEE
`communication theory and data communication systems technical committees. Technical program representative to
`International Conference on Communications 1987 and Global Telecommunications Conference, 1989. Technical
`Program Chairman of Communication Theory Mini- Conference Globecom 93. Organizer and chairman for 16 IEEE
`conference sessions in the past ten years. Technical Program Chairman of IEEE Communication Theory workshop,
`Santa Cruz, April 1995.
`
`Selected Publications
`
`1. D. Divsalar and M. K. Simon, "Spectral Characteristics of Convolutionally Coded Digital Signals," IEEE Trans. on
`Communications, February 1980.
`2. D. Divsalar and M. K. Simon, "The Power Spectral Density of Digital Modulations Transmitted Over Nonlinear Channels,"
`IEEE Trans. on Communications, Vol. COM-30, January 1982.
`3. D. Divsalar and J. H. Yuen, "Carrier Arraying with Coupled Phase-Locked Loops for Tracking Improvement," IEEE Trans.
`on Communications, Special Issue on Phase- Locked Loops, October 1982.
`4. D. Divsalar, R. M. Gagliardi and J. H. Yuen, "PPM Performance for Reed- Solomon Decoding Over an Optical-RF Relay
`Link," IEEE Transactions on Communications, March 1984.
`5. D. Divsalar, M. K. Simon and J. H. Yuen, "Trellis Coding with asymmetric Modulations," IEEE Transactions on
`Communications, Vol. COM-35, No. 2, February 1987.
`6. D. Divsalar and M. K. Simon, "Trellis Coded Modulation for 4800-9600 bps Transmission Over a Fading Mobile Satellite
`Channel," Special Issue on Fading Channels of the IEEE Journal on Selected Areas in Communications, Vol. SAC-5,
`No. 2, February 1987, pp. 162-175.
`7. D. Divsalar and M. K. Simon, "Multiple Trellis Coded Modulation (MTCM)," IEEE Transactions on Communications, April
`1988.
`8. M. K. Simon and D. Divsalar, "The Performance of Trellis Coded Multilevel DPSK on a Fading Mobile Satellite Channel,"
`IEEE Trans. on Vehicular. Tech., May 1988.
`9. M. K. Simon and D. Divsalar, "Doppler Corrected Differential Detection of MDPSK," IEEE Trans. on Comm., February
`1988.
`10. D. Divsalar and M. K. Simon, "The Design of Trellis Codes for Fading Channels: Performance Criteria," IEEE
`Transactions on Communications, Vol. COM-36, No. 9, September 1988.
`11. D. Divsalar and M. K. Simon, "The Design of Trellis Codes for Fading Channels: Set Partitioning for Optimum Code
`Design for MPSK Signals," IEEE Transactions on Communications, Vol. COM-36, No. 9, September, 1988.
`12. D. Divsalar and M. K. Simon, "The Use of Interleaving for Reducing Radio Loss in Trellis Coded Modulation Systems,"
`IEEE Transactions on Communications, Vol. 38, No. 3, August 1990.
`13. D. Divsalar and M. K. Simon, "Multiple Symbol Differential Detection of MPSK," IEEE Transactions on Communications
`March 1990.
`14. D. Divsalar, M. K. Simon and M. Shahshahani, "The Performance of Trellis Coded MDPSK with Multiple Detection," IEEE
`Transactions on Communications, September 1990.
`15. J. H. Yuen, M. K. Simon, W. Miller, F. Pollara, C. R. Ryan, D. Divsalar and J. Marakis, "Modulation and Coding for
`Satellite and Space Communications," proceedings of the IEEE, Vol. 78, No. 7, July 1990.
`16. M. K. Simon and D. Divsalar, "On the Implementation and Performance of Single and Double Differential Detection
`Schemes," IEEE Transactions on Communications, February 1992.
`17. M. K. Simon and D. Divsalar, "Maximum-Likelihood Sequence Detection of Non coherent Continuous Phase Modulation,"
`IEEE Transactions on Communications, January 1993.
`18. M. K. Simon and D. Divsalar, "Multiple Symbol Partially Coherent Detection of MPSK," IEEE Transactions on
`Communications, February 1994.
`19. D. Divsalar and M. K. Simon, "Maximum-Likelihood Differential Detection of Uncoded and Trellis Coded Amplitude-
`Phase Modulation Over AWGN and Fading Channels, Metrics and Performance," IEEE Transactions on Communications
`, January 1994.
`20. H. Lee, D. Divsalar and C. Weber, "Multiple Symbol Trellis Coding for Full Response CPFSK" IEEE Transactions on
`Communications, May 1996.
`21. S. Benedetto, D. Divsalar, G. Montorsi and F. Pollara, " Bandwidth Efficient Parallel Concatenated Coding Schemes," IEE
`Electronics Letters, November 1995, Vol. 31, No. 24.
`22. S.Benedetto, D. Divsalar, G. Montorsi and F. Pollara, "A new algorithm for continuous decoding of turbo codes," IEE
`Electronics Letters, Feb. 1996.
`23. D. Divsalar, and R. J. McEliece, " The Effective Free Distance of Turbo Codes," IEE Electronics Letters, February 96.
`24. S. Benedetto, D. Divsalar, G. Montorsi, and F. Pollara, "Serial Concatenation of Interleaved Codes: Performance
`Analysis, Design, and Iterative Decoding," IEEE Transactions on Information Theory , May 1998
`25. S. Benedetto, D. Divsalar, G. Montorsi, and F. Pollara, "Soft Input Soft Output APP Module for Iterative Decoding of
`Concatenated Codes," IEEE Communications Letters January 1997.
`26. M.K. Simon, and D. Divsalar, "On the Optimality of Classical Coherent Receivers of Differentially Encoded M-PSK,” IEEE
`Communications Letters, May 1997.
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`27. S. Benedetto, D. Divsalar, G. Montorsi, F. Pollara, “ Analysis, Design, and Iterative Decoding of Double Serially
`Concatenated Codes with Interleavers". IEEE Journal on Selected Areas in Communications, Special Issue on
`Concatenated Coding Techniques and Iterative Decoding: Sailing Toward Channel Capacity, February 98.
`28. S. Benedetto, D. Divsalar, G. Montorsi, F. Pollara, "Soft-Input Soft-Output Modules for the Construction and Distributed
`Iterative Decoding of Code Networks," European Transactions on Telecommunications, March-April 98 (invited paper).
`29. M.K. Simon, D. Divsalar, "Some New Twists to Problems Involving the Gaussian Probability Integral,” IEEE Transaction
`on Communications, February 1998.
`30. D. Divsalar, M.K. Simon, and D. Raphaeli, "Improved Parallel Interference Cancellation for CDMA,” IEEE Transaction on
`Communications, February 1998.
`31. D. Raphaeli, and D. Divsalar, " Multiple-Symbol Noncoherent Decoding of Uncoded and Convolutionally Coded
`Continuous Phase Modulation,” Journal of Communications and Networks, December 1999.
`32. D. Divsalar, S. Dolinar, and F. Pollara,“Iterative Turbo Decoder Analysis Based on Density Evolution,” IEEE Journal on
`Selected Areas in Communications, Vol. 19, No. 5, pp 891-907, May 2001.
`33. R. Garello, G. Montorsi, S. Benedetto, D. Divsalar, F. Pollara, "Labelings and Encoders with the Uniform Bit Error
`Property with Applications to Serially Concatenated Trellis Codes," IEEE Transaction on Information Theory, Jan. 2002.
`34. Sason, I.; Shamai, S.; Divsalar, D., “Tight exponential upper bounds on the ML decoding error probability of block codes
`over fully interleaved fading channels ,’’ IEEE Transactions on Communications , Volume: 51 , Issue: 8 , Aug. 2003,
`Pages:1296 - 1305.
`35. Benedetto, S.; Montorsi, G.; Divsalar, D. “Concatenated convolutional codes with interleavers,” IEEE Communications
`Magazine,Volume: 41 , Issue: 8 , Aug. 2003 Pages:102 - 109
`36. D. Divsalar, E. Biglieri, " Upper bounds to error probabilities of coded systems beyond the cutoff rate,” IEEE Transaction
`on Communications, December 2003.
`37. L. Li, D. Divsalar, S. Dolinar, "Iterative Demodulation, Demapping, and Decoding of Coded Non-Square QAM,", IEEE
`Communications Letters, January 2005.
`38. A. Abbasfar, D. Divsalar, K. Yao, “ Accumulate-Repeat-Accumulate Codes,’’ IEEE Transaction on Communications, April
`2007.
`39. Simon, M.; Divsalar, D.; Some Interesting Observations for Certain Line Codes With Application to RFID,’’ IEEE
`Transactions on Communications, Volume 54, Issue 4, April 2006.
`40. K. Andrews, D. Divsalar, S. Dolinar, J. Hamkins, C. Jones, and F. Pollara,”The Development of Turbo and LDPC Codes
`for Deep Space Applications,” IEEE proceedings Vol. 95, No. 11, November 2007.
`41. D. Divsalar, S. Dolinar, C. Jones, and K. Andrews, Capacity Approaching Protograph Codes,” IEEE Journal of Selected
`Areas in Communications, Febraury 2009.
`42. M. Barsoum, B. Moision, M. Fitz, D. Divsalar, J. Hamkins, "Exit Function Aided Design of Iteratively Decodable Codes for
`Poisson PPM Channel", IEEE Transactions on Communications, December 2010.
`43. Shadi Abu-Surra, Dariush Divsalar, and William Ryan, "Enumerators for Protograph-Based Ensembles of LDPC and
`Generalized LDPC Codes," IEEE Transactions on Information Theory, Vol. 57, No. 2, pages 858 - 886, February 2011.
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