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Department of Electrical and Computer Engineering

Abdi, Ali

Contact Info
Title: Associate Professor
Email: ali.abdi@njit.edu
Office: 303 ECE
Phone: 973-596-5621
Dept: Electrical and Computer Engineering
Webpage: http://web.njit.edu/~abdi

About Me

Ali Abdi, PhD is an associate professor in the Department of Electrical and Computer Engineering at New Jersey Institute of Technology. His current research interests include digital communication in underwater and terrestrial channels, estimation and characterization of wireless channels, blind modulation recognition, and molecular networks.

Abdi served as associate editor for IEEE Transactions on Vehicular Technology from 2002 to 2007. He was the co-chair of the Communication and Information Theory Track of the 2008 IEEE International Conference on Computer Communications and Networks (ICCCN). He is a Senior Member of IEEE.

His awards include the New Jersey Inventors Hall of Fame Innovators Award (2008) and the NJIT Excellence in Teaching Award in the category of Excellence in Team, Interdepartmental, Multidisciplinary, or Non-Traditional Teaching (2006).

Education

  • University of Minnesota, Ph.D., 2001.

Courses I Teach

RESEARCH PROJECT
WIRELESS COMMUNICATION SYSTEMS
RANDOM SIGNAL ANALYSIS I
MASTER'S PROJECT
DOCTRL DISSRTN & RESEARCH
DOCTRL DISSERTATION & RESRCH

Classes Taught

  • ECE481: Communication Systems I
  • ECE482: Communication Systems II
  • ECE673: Random Signal Analysis I
  • ECE644: Introduction to Wireless and Personal Communication Systems
  • ECE789: Special Topics in Wireless Communications

Research Groups

PhD Students

  • Huaihai Guo, working on Underwater Communication via Particle Velocity Channels.
  • Chen Chen, working on Underwater Communication.
  • Hong Zhang, PhD Thesis: Doppler Spread Estimation in Mobile Fading Channels, Jan. 2007 (now  with InterDigital, King of Prussia, PA).
  • Shuangquan Wang, PhD Thesis: MIMO Fading Channels: Models, Statistics and Low-Complexity Estimators, May 2006 (now with NEC Labs America, Princeton, NJ).
  • Hong Li, PhD Thesis: Advanced Methods in Automatic Modulation Classification for Emerging    Technologies, May 2006 (I served as a co-advisor. The main advisor was Prof. Y. Bar-Ness).
  • Chunjun Gao, PhD Thesis: Performance Evaluation of Communication Systems with Transmit Diversity, May 2004 (I served as a co-advisor. The main advisor was Prof. A. M. Haimovich).

MS Students

  • Kodzovi Acolatse, MS Project: Simulation of Correlated MIMO Mobile Fading Channels, Dec. 2002 (now a PhD student at NJIT).
  • Linesh John, MS Project: Speed Estimation and Line-of-Sight Modeling in Wireless Systems, May 2003.
  • Kaustubha Raghukumar, MS Thesis: Spatio-Temporal Correlation Models for Indoor MIMO Channels, May 2003 (now a PhD student at the University of California, San Diego).
  • Ratna K. Choppala, MS Project:  Alternative Approaches to Multipath Fading, Aug. 2003.
  • Sumit Dhingra, MS Project:  Simulation of Digital Communication Techniques Using the Texas Instrument TMS320C6701 DSP Hardware, Dec. 2003.
  • Rahoul Choudhry, MS Project: Blind Modulation Classification Using Antenna Arrays, May 2004.
  • Raja V. Ramakrishnan, MS Project: Pulse Amplitude Modulated System Design Using DSP TMS320C6701, May 2004.
  • Vineet Khurana, Design of CDMA Lab Experiments, May 2004.
  • Muhammad Tauseef ul islam, Programming the Texas Instrument TMS320C6701 DSP Hardware for Communication and Signal Processing Applications., Nov. 2004.
  • Seyd I. Ahmed, Waqas Ansar and Haris A. Hafeezjan, MS Project: Analysis of Matlab W-CDMA Toolbox, Agilent ESG-D 4432/1B Generator and Radio Mobile Software, May 2006.
  • Wei Chen, MS Project: MIMO Channel Estimation Using the Texas Instrument TMS320C6701 DSP Hardware, May 2006.
  • Shweta Dhadiwal, MS Project: Frequency Shift Keying in Multipath Channels, May 2006.
  • Patchara Sutthiwan, MS Project: Multichannel Underwater Communication Receivers, May 2006.
  • Amish Husain, MS Project: Artificial Intelligence and Signature Matching, Jan. 2007.

BS Students

  • Parthiv M. Doshi, Senior Project: Comparison of the Performance of Different Speed Estimators in Mobile Communications, May 2002.
  • Mario J. Portilla, Senior Project: Statistical Modeling of Indoor Multiple Input Multiple Output Wireless Channels, May 2002.
  • Amine Riad,  Senior Project: Statistical Analysis of Mobile Fading Channels, May 2002.
  • Faisal Alsaidi, Sanam T. Furniturewala, and Omar Hmimda, Senior Project: Record/Playback a Real cdma2000 MS Experience, May 2004.
  • Huai Chan and Ankur Parikh, Senior Project: Hardware Simulation of MIMO Channels, May 2004.
  • Hongteng Chen and Shanshan Sun, Senior Project: Development of Matlab Based Educational Software for Undergraduate Communication System Courses, May 2004.
  • Jose Falcon, Fidel Fuentes and Francisco Garrido, Senior Project: Statistical Analysis of Shadowing in Mobile Indoor Channels, May 2006.
  • Richard D. Adjei and David A. Jones, Senior Project: Fault Detection Using MATLAB, May 2006.
  • Usman Shabbir and Amit Shah, Senior Project: Fast MIMO Channel Simulation Using a TI DSP, May 2006.
  • Dunxu Hu, NSF/REU Project: Statistical Characteristics of MIMO Systems, July 2006.
  • Arwa Gheith, Stephen Istivan and Karen McMillan, Senior Project: Simulation & Virtual Instrumentation of the Tennessee Eastman Process, May 2007.
  • Chintan Patel, Jamin Doshi, Snehal Patel and Richard Lew, Senior Project: Underwater Communication, May 2007.
  • Adam Melber, Gregory Gadomski, Michael Quarato and Kedar Tamhankar, Senior Project: Software Defined Radio: Hardware and Software Simulation, May 2007.
  • Janyll Perez, NSF/REU Project: Underwater Communication in Shallow Waters, July 2007.
  • Vixar Patel, Roma Shah, Usman Malik and Jaimane Tyler, Senior Project: Underwater Communication via Vector Sensors, May 2008.
  • Nandhini Sudarsanan, NSF/REU Project: Impact of Sound Speed Profile on Underwater Communication Networks, July 2008.

Patents

  • A. Abdi, Vector sensors for underwater acoustic communication.
  •  S. Wang and A. Abdi, MIMO channel estimation using complementary sets of sequence
  •    in multiuser environments.
  •  H. Zhang and A. Abdi, Robust mobile velocity estimator for wireless systems.
  •  H. Zhang and A. Abdi, A space-time mobile speed estimator using multiple antennas.
  •  H. Zhang and A. Abdi, Blind mobile speed estimation in wireless fading channels.
  •  H. Zhang and A. Abdi, Pilot symbol assisted mobile speed estimation in wireless fading channels.

Related Links

Accepted Journal papers

  1. A. Abdi and H. Guo, “A new compact multichannel receiver for underwater wireless communication networks,” accepted for publication in IEEE Trans. Wireless Commun., 2008.

  2. H. Zhang and A. Abdi, “Cyclostationarity-based Doppler spread estimation in mobile fading channels,” accepted for publication in IEEE Trans. Commun., 2008.

  3. A. Abdi, H. Zhang, and C. Tepedelenlioglu, “A unified approach to performance analysis of speed estimation techniques in mobile communication,” IEEE Trans. Commun., vol. 56, pp. 126-135, 2008.

  4. S. Wang and A. Abdi,Joint singular value distribution of two correlated rectangular Gaussian matrices and its application,”  SIAM J. Matrix Anal. Appl., vol. 29, pp. 972-981, 2007.

  5. S. Wang and A. Abdi,MIMO ISI channel estimation using uncorrelated Golay complementary sets of polyphase sequences,” IEEE Trans. Vehic. Technol., vol. 56, pp. 3024-3039, 2007.

  6. H. Zhang and A. Abdi, “On the average crossing rates in selection diversity,” IEEE Trans. Wireless Commun., vol. 6, pp. 448-451, 2007.

  7. S. Wang, A. Abdi, J. Salo, H. El-Sallabi, J. Wallace, P. Vainikainen, and M. Jensen, Time-varying MIMO channels: Parametric statistical modeling and experimental results, IEEE Trans. Vehic. Technol., vol. 56, pp. 1949-1963, 2007.

  8. O. A. Dobre, A. Abdi, Y. Bar-Ness, and W. Su, “Survey of automatic modulation classification techniques: Classical approaches and new trends,” IET (former IEE) Commun., vol. 1, pp. 137-156, 2007.

  9. S. Wang and A. Abdi, “Low-complexity optimal estimation of MIMO ISI channels with binary training sequences,” IEEE Signal Processing Lett., vol. 13, pp. 657-660, 2006.

  10. S. Wang and A. Abdi,  “Aperiodic complementary sets of sequences-based MIMO frequency selective channel estimation,” IEEE Commun. Lett., vol. 9, pp. 891-893, 2005.

  11. A. Abdi and S. Nader-Esfahani, “Expected number of maxima in the envelope of a spherically invariant random process,”  IEEE Trans. Inform. Theory, vol. 49, pp. 1369-1375, 2003.

  12. A. Abdi, W. C. Lau, M. S. Alouini, and M. Kaveh, “A new simple model for land mobile satellite channels: First- and second-order statistics,” IEEE Trans. Wireless Commun., vol. 2, pp. 519-528, 2003.

  13. C. Tepedelenlioglu, A. Abdi, and G. B. Giannakis, “The Ricean K factor: Estimation and performance analysis,” IEEE Trans. Wireless Commun., vol. 2, pp. 799-810, 2003.

  14. A. Abdi, “On the second derivative of a Gaussian process envelope,” IEEE Trans. Inform. Theory, vol. 48, pp. 1226-1231, 2002.

  15. A. Abdi and M. Kaveh, “A space-time correlation model for multielement antenna systems in mobile fading channels,” IEEE J. Select. Areas Commun., vol. 20, pp. 550-560, 2002.

  16. A. Abdi, J. A. Barger, and M. Kaveh, “A parametric model for the distribution of the angle of arrival and the associated correlation function and power spectrum at the mobile station,” IEEE Trans. Vehic. Technol., vol. 51, pp. 425-434, 2002.

  17. A. Abdi and M. Kaveh, “Level crossing rate in terms of the characteristic function: A new approach for calculating the fading rate in diversity systems,” IEEE Trans. Commun., vol. 50, pp. 1397-1400, 2002.

  18. Y. C. Ko, A. Abdi, M. S. Alouini, and M. Kaveh, “A general framework for the calculation of the average outage duration of diversity systems over generalized fading channels,” IEEE Trans. Vehic. Technol., vol. 51, pp. 1672-1680, 2002.

  19. A. Abdi, “Comments on “A new theoretical model for the prediction of rapid fading variations in an indoor environment”,” IEEE Trans. Vehic. Technol., vol. 50, pp. 331-334, 2001.

  20. A. Abdi, C. Tepedelenlioglu, M. Kaveh, and G. B. Giannakis, “On the estimation of the K parameter for the Rice fading distribution,” IEEE Commun. Lett., vol. 5, pp. 92-94, 2001.

  21. M. S. Alouini, A. Abdi, and M. Kaveh, “Sum of gamma variates and performance of wireless communication systems over Nakagami fading channels,” IEEE Trans. Vehic. Technol, vol. 50, pp. 1471-1480, 2001.

  22. (Invited Paper) C. Tepedelenlioglu, A. Abdi, G. B. Giannakis, and M. Kaveh, “Estimation of Doppler spread and signal strength in mobile communications with applications to handoff and adaptive transmission,” Wirel. Commun. Mob. Comput., vol. 1, pp. 221-242, 2001.

  23. A. Abdi, H. Hashemi, and S. Nader-Esfahani, “On the PDF of the sum of random vectors,” IEEE Trans. Commun., vol. 48, pp. 7-12, 2000.

  24. A. Abdi and M. Kaveh, “Comparison of DPSK and MSK bit error rates for K and Rayleigh-lognormal fading distributions,” IEEE Commun. Lett., vol. 4, pp. 122-124, 2000.

  25. A. Abdi and M. Kaveh, “Performance comparison of three different estimators for the Nakagami m parameter using Monte Carlo simulation,” IEEE Commun. Lett., vol. 4, pp. 119-121, 2000.

  26. A. Abdi and S. Nader-Esfahani, “Comments on “Statistics of the scattering cross-section of a small number of random scatterers”,” IEEE Trans. Antennas Propagat., vol. 48, p. 844, 2000.

  27. A. Abdi, “Comments on “On verifying the first-order Markovian assumption for a Rayleigh fading channel model”,” IEEE Trans. Vehic. Technol., vol. 48, p. 1739, 1999.

  28. A. Abdi and M. Kaveh, “K distribution: an appropriate substitute for Rayleigh-lognormal distribution in fading-shadowing wireless channels,” Electron. Lett., vol. 34, pp. 851-852, 1998.

Accepted Conference Papers

  1. H. Guo and A. Abdi, “Multiuser underwater communication with space-time block codes and acoustic vector sensors,” in Proc. MTS/IEEE Oceans, Quebec City, QC, Canada, 2008.

  2. A. Abdi and H. Guo, “A correlation model for vector sensor arrays in underwater communication systems,” in Proc. MTS/IEEE Oceans, Quebec City, QC, Canada, 2008.

  3. A. Song, M. Badiey, P. Hursky and A. Abdi, “Time reversal receivers for underwater acoustic communication using vector sensors,” in Proc. MTS/IEEE Oceans, Quebec City, QC, Canada, 2008.

  4. A. Abdi, H. Guo and P. Sutthiwan, “A new vector sensor receiver for underwater acoustic communication,” in Proc. MTS/IEEE Oceans, Vancouver, BC, Canada, 2007.

  5. M. Cao, H. Ge, H. Zhang and A. Abdi, “Parametric Doppler spread estimation in mobile fading channels,” in Proc. IEEE Military Commun. Conf., Orlando, FL, 2007.

  6. S. Wang and A. Abdi, “Statistical characterization of eigen-channels in time-varying Rayleigh flat fading MIMO systems,” in Proc. IEEE Global Telecommun. Conf., San Francisco, CA, 2006.

  7. H. Zhang and Abdi, “Cyclostationary-based mobile speed estimation in fading channels: Blind and data-aided approaches,” in Proc. IEEE Global Telecommun. Conf., San Francisco, CA, 2006.

  8. H. Zhang, A. Abdi and A. M. Haimovich, “Reduced-rank multi-antenna cyclic Wiener filtering for interference cancellation,” in Proc. IEEE Military Commun. Conf., Washington, DC, 2006.

  9. H. Zhang and A. Abdi, “Space-time Doppler spread estimation in mobile fading channels,” in Proc. IEEE Military Commun. Conf., Washington, DC, 2006.

  10. O. A. Dobre, A. Abdi, Y. Bar-Ness, and W. Su, “Cyclostationarity-based blind classification of joint analog and digital modulations,” in Proc. IEEE Military Commun. Conf., Washington, DC, 2006.

  11. H. Li, A. Abdi, Y. BarNess and W. Su, “Array-based linear modulation classifier with two-stage CFO estimation in fading channels,” in Proc. IEEE Global Telecommun. Conf., San Francisco, CA, 2006.

  12. S. Wang and A. Abdi “Correlation analysis of instantaneous mutual information in 2x2 MIMO systems,” in Proc. Conf. Inform. Sci. Syst., Princeton University, Princeton, NJ, 2006, pp. 542-546.

  13. S. Wang and A. Abdi “Optimal training sequences for efficient MIMO frequency-selective fading channel estimation,” in Proc. IEEE Sarnoff Symp., Princeton, NJ, 2006.

  14. H. Li, A. Abdi, Y. Bar-Ness, and W. Su, “Carrier frequency offset estimation in qHLRT modulation classifier with antenna arrays,” in Proc. IEEE Wireless Commun. Networking Conf., Las Vegas, NV, 2006.

  15. H. Li, Y. Bar-Ness, A. Abdi, and W. Su, “A qHLRT modulation classifier in fading channels with antenna arrays,” in Proc. IEEE Sarnoff Symp., Princeton, NJ, 2006.

  16. H. Li, Y. Bar-Ness, A. Abdi, O. Somekh, and W. Su, “OFDM modulation classification and parameters extraction,” in Proc. IEEE Int. Conf. Cognitive Radio Oriented Wireless Networks and Communications, Mykonos, Greece, 2006.

  17. H. Zhang and A. Abdi, “A robust mobile speed estimator in fading channels: Performance analysis and experimental results,” in Proc. IEEE Global Telecommun. Conf., St. Louis, MO, 2005, pp. 2567-2573.

  18. (Ranked 1st in the Graduate Poster Contest of Globecom´05) S. Wang and A. Abdi, “MIMO frequency selective channel estimation using aperiodic complementary sets of sequences,” in Proc. IEEE Global Telecommun. Conf., St. Louis, MO, 2005, pp. 2239-2243.

  19. S. Wang, A. Abdi, J. Salo, H. El-Sallabi, and P. Vainikainen “A time-varying MIMO channel model: Theory and measurements,” in Proc. IEEE Int. Workshop Signal Processing Advances Wireless Commun., New York, 2005, pp. 343-347.

  20. S. Wang and A. Abdi, “On the second-order statistics of the instantaneous mutual information of time-varying fading channels,” in Proc. IEEE Int. Workshop Signal Processing Advances Wireless Commun., New York, 2005, pp. 405-409.

  21. O. A. Dobre, A. Abdi, Y. Bar-Ness, and W. Su, “Selection combining for modulation recognition in fading channels,” in Proc. IEEE Military Commun. Conf., Atlantic City, NJ, 2005.

  22. O. A. Dobre, A. Abdi, Y. Bar-Ness, and W. Su, “The classification of joint analog and digital modulations,” in Proc. IEEE Military Commun. Conf., Atlantic City, NJ, 2005.

  23. O. A. Dobre, A. Abdi, Y. Bar-Ness, and W. Su, “Blind modulation classification: A concept whose time has come,” in Proc. IEEE Sarnoff Symp., Princeton, NJ, 2005, pp. 223-228.

  24. (Invited Paper) A. Abdi, “Stochastic modeling and simulation of multiple-input multiple-output channels: A unified approach,” in Proc. IEEE Int. Symp. Antennas Propagat., Monterey, CA, 2004, pp. 3673-3676.

  25. R. K. Bandila and A. Abdi, “On the performance limits in fading channels with arbitrary number of multipath components,” in Proc. Conf. Inform. Sci. Syst., Princeton University, Princeton, NJ, 2004, pp. 1186-1189.

  26. S. Wang, K. Raghukumar, A. Abdi, J. Wallace, and M. Jensen, “Indoor MIMO channels: A parametric correlation model and experimental results,” in Proc. IEEE Sarnoff Symp. Advances Wired Wirel. Commun., Princeton, NJ, 2004, pp. 1-5.

  27. Z. Latinovic, A. Abdi, and Y. Bar-Ness, “On the utility of the circular ring model for wideband MIMO channels,” in Proc. IEEE Vehic. Technol. Conf., Los Angeles, CA, 2004, pp. 96-100.

  28. H. Zhang and A. Abdi, “Mobile speed estimation using diversity combining in fading channels,” in Proc. IEEE Global Telecommun. Conf., Dallas, TX, 2004, pp. 3685-3689.

  29. A. Abdi, O. A. Dobre, R. Choudhry, Y. Bar-Ness, and W. Su, Modulation classification in fading channels using antenna arrays, in Proc. IEEE Military Commun. Conf., Monterey, CA, 2004, pp. 211-217.

  30. (Invited Paper) A. Abdi, C. Gao, and A. M. Haimovich, “Level crossing rate and average fade duration in MIMO mobile fading channels,” in Proc. IEEE Vehic. Technol. Conf., Orlando, FL, 2003, pp. 3164-3168.

  31. Z. Latinovic, A. Abdi, and Y. Bar-Ness, “A wideband space-time model for MIMO mobile fading channels,” in Proc. IEEE Wireless Commun. Networking Conf., New Orleans, LA, 2003, pp. 338-342.

  32. K. Acolatse and A. Abdi, “Efficient simulation of space-time correlated MIMO mobile fading channels,” in Proc. IEEE Vehic. Technol. Conf., Orlando, FL, 2003, pp. 652-656.

  33. A. Abdi, H. Zhang, and C. Tepedelenlioglu, “Speed estimation techniques in cellular systems: Unified performance analysis,”  in Proc. IEEE Vehic. Technol. Conf., Orlando, FL, 2003, pp. 1522-1526.

  34. A. Abdi, “A general framework for the characterization of multipath fading,” in Proc. Conf. Inform. Sci. Syst., Princeton University, Princeton, NJ, 2002, pp. 414-418.

  35. A. Abdi and M. Kaveh, “Parametric modeling and estimation of the spatial characteristics of a source with local scattering,” in Proc. IEEE Int. Conf. Acoust., Speech, Signal Processing, Orlando, FL, 2002, pp. 2821-2824.

  36. A. Abdi, “A level crossing-based algorithm for the identification of DSB and SSB modulated spherically invariant processes,” in Proc. Conf. Inform. Sci. Syst., Princeton University, Princeton, NJ, 2002, pp. 652-656.

  37. C. Tepedelenlioglu and A. Abdi, “Estimation of the Rice factor from the I/Q components,” in Proc. Conf. Inform. Sci. Syst., Princeton University, Princeton, NJ, 2002, pp. 423-428.

  38. Y. C. Ko, M. R. Burr, M. S. Alouini, and A. Abdi, “Average outage duration of interference-limited wireless communication systems,” in Proc. IEEE Vehic. Technol. Conf., Birmingham, AL, 2002, pp. 1284-1288.

  39. A. Abdi, W. C. Lau, M. S. Alouini, and M. Kaveh, “A new simple model for land mobile satellite channels,” in Proc. IEEE Int. Conf. Commun., Helsinki, Finland, 2001, pp. 2630-2634.

  40. A. Abdi, W. C. Lau, M. S. Alouini, and M. Kaveh, “On the second-order statistics of a new simple model for land mobile satellite channels,” in Proc. IEEE Vehic. Technol. Conf., Atlantic City, NJ, 2001, pp. 301-304.

  41. A. Abdi, H. A. Barger, and M. Kaveh, “A simple alternative to the lognormal model of shadow fading in terrestrial and satellite channels,” in Proc. IEEE Vehic. Technol. Conf., Atlantic City, NJ, 2001, pp. 2058-2062.

  42. A. Abdi and M. Kaveh, “Space-time correlation modeling of multielement antenna systems in mobile fading channels,” in Proc. IEEE Int. Conf. Acoust., Speech, Signal Processing, Salt Lake City, UT, 2001, pp. 2505-2508.

  43. M. O. Damen, A. Abdi, and M. Kaveh, “On the effect of correlated fading on several space-time coding and detection schemes,” in Proc. IEEE Vehic. Technol. Conf., Atlantic City, NJ, 2001, pp. 13-16.

  44. M. S. Alouini, A. Abdi, and M. Kaveh, “Sum of correlated gamma variates with application to the performance of wireless systems over Nakagami channels,” in Proc. IEEE Int. Symp. Infrom. Theory, Washington, D.C., 2001, p. 56.

  45. C. Tepedelenlioglu, A. Abdi, G. B. Giannakis, and M. Kaveh, “Performance analysis of moment-based estimators for the K parameter of the Rice fading distribution,” in Proc. IEEE Int. Conf. Acoust., Speech, Signal Processing, Salt Lake City, UT, 2001, pp. 2521-2524.

  46. A. Abdi, H. A. Barger, and M. Kaveh, “Signal modeling in wireless fading channels using spherically invariant processes,” in Proc. IEEE Int. Conf. Acoust., Speech, Signal Processing, Istanbul, Turkey, 2000, pp. 2997-3000.

  47. Y. C. Ko, A. Abdi, M. S. Alouini, and M. Kaveh, “Average outage duration of diversity systems over generalized fading channels,” in Proc. IEEE Wireless Commun. Networking Conf., Chicago, IL, 2000, pp. 216-221.

  48. A. Abdi, K. Wills, H. A. Barger, M. S. Alouini, and M. Kaveh, “Comparison of the level crossing rate and average fade duration of Rayleigh, Rice, and Nakagami fading models with mobile channel data,” in Proc. IEEE Vehic. Technol. Conf., Boston, MA, 2000, pp. 1850-1857.

  49. A. Abdi and M. Kaveh, “A versatile spatio-temporal correlation function for mobile fading channels with non-isotropic scattering,” in Proc. IEEE Workshop Statistical Signal Array Processing, Pocono Manor, PA, 2000, pp. 58-62.

  50. A. Abdi and M. Kaveh, “On the utility of the gamma PDF in modeling shadow fading (slow fading),” in Proc. IEEE Vehic. Technol. Conf., Houston, TX, 1999, pp. 2308-2312.

  51. A. Abdi and M. Kaveh, “Envelope PDF in multipath fading channels with random number of paths and nonuniform phase distributions,” in Wireless Personal Communications: Emerging Technologies for Enhanced Communications. W. H. Tranter, T. S. Rappaport, B. D. Woerner, and J. H. Reed, Eds., Boston, MA: Kluwer, 1999, pp. 275-282.

  52. A. Abdi and M. Kaveh, “A new velocity estimator for cellular systems based on higher order crossings,” in Proc. Asilomar Conf. Signals, Systems, Computers, Pacific Grove, CA, 1998, pp. 1423-1427.

  53. S. Nader-Esfahani and A. Abdi, “New results on the expected number of maxima in the normal process envelope,” in Proc. IEEE Int. Symp. Inform. Theory, Ulm, Germany, 1997, p. 79.

  54. A. Abdi and S. Nader-Esfahani, “A general PDF for the signal envelope in multipath fading channels using Laguerre polynomials,” in Proc. IEEE Vehic. Technol. Conf., Atlanta, GA, 1996, pp. 1428-1432.

  55. A. Abdi and S. Nader-Esfahani, “An optimum Laguerre expansion for the envelope PDF of two sine waves in Gaussian noise,” in Proc. IEEE Southeast Conf., Tampa, FL, 1996, pp. 160-163.

  56. A. Abdi and S. Nader-Esfahani, “A simple formula for the rate of maxima in the envelope of normal processes having unsymmetrical spectra,” in Proc. IEEE Int. Symp. Inform. Theory, Whistler, B. C., Canada, 1995, p. 425.