Alex Gershman

Alex B. Gershman received his Diploma and Ph.D. degrees in radiophysics from the Nizhny Novgorod University, Russia, in 1984 and 1990, respectively. From 1984 to 1997, he held research positions at several research institutes in Russia. From 1997 to 1999, he was a Research Associate in the Department of Electrical Engineering, Ruhr University, Bochum, Germany. In 1999, he joined the Department of Electrical and Computer Engineering, McMaster University, Hamilton, Ontario, Canada, where he is now a Professor. He also held visiting positions at the Swiss Federal Institute of Technology, Lausanne, Ruhr University, Bochum, and University of Duisburg-Essen, Duisburg. His main research interests are in statistical and array signal processing, adaptive beamforming, MIMO systems, space-time coding, multiuser communications, and parameter estimation. He has published over 220 technical papers in these areas and has coedited two books. Dr. Gershman was a recipient of the 1993 URSI Young Scientist Award, the 1994 Outstanding Young Scientist Presidential Fellowship (Russia), the 1994 Swiss Academy of Engineering Science Fellowship, and the 1995–1996 Alexander von Humboldt Fellowship (Germany). He received the 2000 Premier's Research Excellence Award, Ontario, Canada, and the 2001 Wolfgang Paul Award, Alexander von Humboldt Foundation, Germany. He was a recipient of the 2002 Young Explorers Prize from the Canadian Institute for Advanced Research (CIAR), which has honored Canada's top 20 researchers aged 40 or under. He is an Associate Editor for the IEEE Transactions on Signal Processing and EURASIP Journal on Wireless Communications and Networking, as well as a Member of the SAM Technical Committee of the IEEE Signal Processing Society.

Biography Updated on 20 August 2004

Articles in Scholarly Journals [Incomplete List]

  1. Channel-Aware ALOHA-Based OFDM Subcarrier Assignment in Single-Cell Wireless Communications
    IEEE Transactions on Communications, vol. 55, no. 5, pp. 953–962, 2007
  2. Robust Downlink Beamforming Based on Outage Probability Specifications
    IEEE Transactions on Wireless Communications, vol. 6, no. 10, pp. 3498–3503, 2007
  3. A State-Space Approach to Robust Multiuser Detection
    IEEE Transactions on Wireless Communications, vol. 6, no. 9, pp. 3333–3343, 2007
  4. Blind Subspace-Based Signature Estimation in DS-CDMA Systems With Unknown Wide-Sense Stationary Interference
    IEEE Transactions on Signal Processing, vol. 55, no. 7, pp. 3325–3335, 2007
  5. Performance Analysis of Blind Subspace-Based Signature Estimation Algorithms for DS-CDMA Systems with Unknown Correlated Noise
    EURASIP Journal on Advances in Signal Processing, vol. 2007, Article ID 83863, 14 pages, 2007
  6. Adaptive OFDM Techniques With One-Bit-Per-Subcarrier Channel-State Feedback
    IEEE Transactions on Communications, vol. 54, no. 11, pp. 1993–2003, 2006
  7. Training-Based MIMO Channel Estimation: A Study of Estimator Tradeoffs and Optimal Training Signals
    IEEE Transactions on Signal Processing, vol. 54, no. 3, pp. 884–893, 2006
  8. Convex Optimization Based Beam-Space Preprocessing With Improved Robustness Against Out-of-Sector Sources
    IEEE Transactions on Signal Processing, vol. 54, no. 5, pp. 1587–1595, 2006
  9. Rank Reduction Direction-of-Arrival Estimators With an Improved Robustness Against Subarray Orientation Errors
    IEEE Transactions on Signal Processing, vol. 54, no. 5, pp. 1951–1955, 2006
  10. Robust Transmit Eigen Beamforming Based on Imperfect Channel State Information
    IEEE Transactions on Signal Processing, vol. 54, no. 5, pp. 1596–1609, 2006
  11. Blind Subspace-Based Signature Waveform Estimation in BPSK-Modulated DS-CDMA Systems With Circular Noise
    IEEE Transactions on Signal Processing, vol. 54, no. 9, pp. 3592–3602, 2006
  12. Semiblind multiuser MIMO channel estimation using capon and MUSIC techniques
    IEEE Transactions on Signal Processing, vol. 54, no. 9, pp. 3581–3591, 2006
  13. Robust linear receivers for multiaccess space-time block-coded MIMO systems: a probabilistically constrained approach
    IEEE Journal on Selected Areas in Communications, vol. 24, no. 11, pp. 1560–1570, 2006
  14. A Generalized ESPRIT Approach to Direction-of-Arrival Estimation
    IEEE Signal Processing Letters, vol. 12, no. 3, pp. 254–257, 2005
  15. Constellation Space Invariance of Orthogonal Space–Time Block Codes
    IEEE Transactions on Information Theory, vol. 51, no. 1, pp. 331–334, 2005
  16. Robust blind multiuser detection based on the worst-case performance optimization of the MMSE receiver
    IEEE Transactions on Signal Processing, vol. 53, no. 1, pp. 295–305, 2005
  17. Maximum Likelihood Direction-of-Arrival Estimation in Unknown Noise Fields Using Sparse Sensor Arrays
    IEEE Transactions on Signal Processing, vol. 53, no. 1, pp. 34–43, 2005
  18. Blind Spatial Signature Estimation via Time-Varying User Power Loading and Parallel Factor Analysis
    IEEE Transactions on Signal Processing, vol. 53, no. 5, pp. 1697–1710, 2005
  19. Robust Adaptive Beamforming Based on the Kalman Filter
    IEEE Transactions on Signal Processing, vol. 53, no. 8, pp. 3032–3041, 2005
  20. Robust linear receivers for space-time block coded multiaccess MIMO systems with imperfect channel state information
    IEEE Transactions on Signal Processing, vol. 53, no. 8, pp. 3081–3090, 2005
  21. On Diversity and Coding Gains and Optimal Matrix Constellations for Space-Time Block Codes
    IEEE Transactions on Signal Processing, vol. 53, no. 10, pp. 3703–3717, 2005
  22. Linear Block Precoding for OFDM Systems Based on Maximization of Mean Cutoff Rate
    IEEE Transactions on Signal Processing, vol. 53, no. 12, pp. 4691–4696, 2005
  23. Closed-Form Blind MIMO Channel Estimation for Orthogonal Space–Time Block Codes
    IEEE Transactions on Signal Processing, vol. 53, no. 12, pp. 4506–4517, 2005
  24. Robust Blind Multiuser Detection for Synchronous CDMA Systems Using Worst-Case Performance Optimization
    IEEE Transactions on Wireless Communications, vol. 3, no. 6, pp. 2232–2245, 2004
  25. Editorial
    EURASIP Journal on Applied Signal Processing, vol. 2004, no. 9, pp. 1189–1190, 2004
  26. Downlink Channel Estimation in Cellular Systems with Antenna Arrays at Base Stations Using Channel Probing with Feedback
    EURASIP Journal on Applied Signal Processing, vol. 2004, no. 9, pp. 1330–1339, 2004
  27. Robust Downlink Power Control in Wireless Cellular Systems
    EURASIP Journal on Wireless Communications and Networking, vol. 2004, no. 2, pp. 261–272, 2004
  28. A Generalized Capon Estimator for Localization of Multiple Spread Sources
    IEEE Transactions on Signal Processing, vol. 52, no. 1, pp. 280–283, 2004
  29. Fast Antenna Subset Selection in MIMO Systems
    IEEE Transactions on Signal Processing, vol. 52, no. 2, pp. 339–347, 2004
  30. Direction-of-Arrival Estimation in Partly Calibrated Subarray-Based Sensor Arrays
    IEEE Transactions on Signal Processing, vol. 52, no. 2, pp. 329–338, 2004
  31. A Covariance Fitting Approach to Parametric Localization of Multiple Incoherently Distributed Sources
    IEEE Transactions on Signal Processing, vol. 52, no. 3, pp. 592–600, 2004
  32. Minimum Variance Linear Receivers for Multiaccess MIMO Wireless Systems with Space-Time Block Coding
    IEEE Transactions on Signal Processing, vol. 52, no. 12, pp. 3306–3313, 2004
  33. Robust adaptive beamforming for HF surface wave over-the-horizon radar
    IEEE Transactions on Aerospace and Electronic Systems, vol. 40, no. 2, pp. 510–525, 2004
  34. Adaptive Beamforming With Joint Robustness Against Mismatched Signal Steering Vector and Interference Nonstationarity
    IEEE Signal Processing Letters, vol. 11, no. 2, pp. 108–111, 2004
  35. Exact Symbol-Error Probability Analysis for Orthogonal Space–Time Block Codes: Two- and Higher Dimensional Constellations Cases
    IEEE Transactions on Communications, vol. 52, no. 7, pp. 1068–1073, 2004
  36. Adaptive beamforming with sidelobe control: a second-order cone programming approach
    IEEE Signal Processing Letters, vol. 10, no. 11, pp. 331–334, 2003
  37. Robust adaptive beamforming using worst-case performance optimization: a solution to the signal mismatch problem
    IEEE Transactions on Signal Processing, vol. 51, no. 2, pp. 313–324, 2003
  38. Robust adaptive beamforming for general-rank signal models
    IEEE Transactions on Signal Processing, vol. 51, no. 9, pp. 2257–2269, 2003
  39. Robust array interpolation using second-order cone programming
    IEEE Signal Processing Letters, vol. 9, no. 1, pp. 8–11, 2002
  40. Stochastic Crame´r–Rao bound for direction estimation in unknown noise fields
    IEE Proceedings - Radar, Sonar and Navigation, vol. 149, no. 1, p. 2, 2002
  41. Direction finding in partly calibrated sensor arrays composed of multiple subarrays
    IEEE Transactions on Signal Processing, vol. 50, no. 9, pp. 2103–2115, 2002
  42. Performance study of the local polynomial approximation based beamforming in the presence of moving sources
    IEEE Transactions on Antennas and Propagation, vol. 50, no. 8, pp. 1151–1157, 2002
  43. Direction finding using data-supported optimization
    Circuits, Systems, and Signal Processing, vol. 20, no. 5, pp. 541–549, 2001
  44. Broadband ML-approach to environmental parameter estimation in shallow ocean at low SNR
    Signal Processing, vol. 81, no. 2, pp. 389–401, 2001
  45. Direction-of-arrival estimation of an amplitude-distorted wavefront
    IEEE Transactions on Signal Processing, vol. 49, no. 2, pp. 269–276, 2001
  46. Simple and accurate direction of arrival estimator in the case of imperfect spatial coherence
    IEEE Transactions on Signal Processing, vol. 49, no. 4, pp. 730–737, 2001
  47. Maximum-likelihood direction-of-arrival estimation in the presence of unknown nonuniform noise
    IEEE Transactions on Signal Processing, vol. 49, no. 7, pp. 1310–1324, 2001
  48. Estimating parameters of multiple wideband polynomial-phase sources in sensor arrays
    IEEE Transactions on Signal Processing, vol. 49, no. 12, pp. 2924–2934, 2001
  49. The stochastic CRB for array processing: a textbook derivation
    IEEE Signal Processing Letters, vol. 8, no. 5, pp. 148–150, 2001
  50. A local polynomial approximation based beamforming for source localization and tracking in nonstationary environments
    IEEE Signal Processing Letters, vol. 7, no. 1, pp. 3–5, 2000
  51. Wideband direction-of-arrival estimation of multiple chirp signals using spatial time-frequency distributions
    IEEE Signal Processing Letters, vol. 7, no. 6, pp. 152–155, 2000
  52. Direction finding in random inhomogeneous media in the presence of multiplicative noise
    IEEE Signal Processing Letters, vol. 7, no. 10, pp. 269–272, 2000
  53. Experimental performance of adaptive beamforming in a sonar environment with a towed array and moving interfering sources
    IEEE Transactions on Signal Processing, vol. 48, no. 1, pp. 246–250, 2000
  54. Unitary root-MUSIC with a real-valued eigendecomposition: a theoretical and experimental performance study
    IEEE Transactions on Signal Processing, vol. 48, no. 5, pp. 1306–1314, 2000
  55. Approximate maximum likelihood estimators for array processing in multiplicative noise environments
    IEEE Transactions on Signal Processing, vol. 48, no. 9, pp. 2506–2518, 2000
  56. Sensor array signal tracking using a data-driven window approach
    Signal Processing, vol. 80, no. 12, pp. 2507–2515, 2000
  57. Robust mixed-order root-music
    Circuits Systems and Signal Processing, vol. 19, no. 5, pp. 451–466, 2000
  58. On Unitary and Forward–Backward MODE
    Digital Signal Processing, vol. 9, no. 2, pp. 67–75, 1999
  59. On the direction estimation Cram?r-Rao bounds in the presence of uncorrelated unknown noise
    Circuits, Systems, and Signal Processing, vol. 18, no. 5, pp. 479–487, 1999
  60. New MODE-based techniques for direction finding with an improved threshold performance
    Signal Processing, vol. 76, no. 3, pp. 221–235, 1999
  61. On LLRT detection of deterministic signals in multiplicative noise
    Signal Processing, vol. 76, no. 3, pp. 323–326, 1999
  62. Improving the performance of Unitary ESPRIT via pseudo-noise resampling
    IEEE Transactions on Signal Processing, vol. 47, no. 8, pp. 2305–2308, 1999
  63. Maximum-likelihood DOA estimation by data-supported grid search
    IEEE Signal Processing Letters, vol. 6, no. 10, pp. 273–275, 1999
  64. A pseudo-noise approach to direction finding
    Signal Processing, vol. 71, no. 1, pp. 1–13, 1998
  65. Pseudo-randomly generated estimator banks: a new tool for improving the threshold performance of direction finding
    IEEE Transactions on Signal Processing, vol. 46, no. 5, pp. 1351–1364, 1998
  66. Two-dimensional wideband interpolated root-MUSIC applied to measured seismic data
    IEEE Transactions on Signal Processing, vol. 46, no. 8, pp. 2263–2267, 1998
  67. Polynomial systems approach to continuous-time weighted optimal linear filtering and prediction
    IEEE Transactions on Signal Processing, vol. 46, no. 11, pp. 3123–3127, 1998
  68. Direction finding using beamspace root estimator banks
    IEEE Transactions on Signal Processing, vol. 46, no. 11, pp. 3131–3135, 1998
  69. Adaptive beamforming algorithms with robustness against jammer motion
    IEEE Transactions on Signal Processing, vol. 45, no. 7, pp. 1878–1885, 1997
  70. Matrix fitting approach to direction of arrival estimation with imperfect spatial coherence of wavefronts
    IEEE Transactions on Signal Processing, vol. 45, no. 7, pp. 1894–1899, 1997
  71. Improved DOA estimation via pseudorandom resampling of spatial spectrum
    IEEE Signal Processing Letters, vol. 4, no. 2, pp. 54–57, 1997
  72. A note on most favorable array geometries for DOA estimation and array interpolation
    IEEE Signal Processing Letters, vol. 4, no. 8, pp. 232–235, 1997
  73. An alternative approach to coherent source location problem
    Signal Processing, vol. 59, no. 2, pp. 221–233, 1997
  74. Removing the outliers in root-MUSIC via conventional beamformer
    Signal Processing, vol. 60, no. 2, pp. 251–254, 1997
  75. Constrained Hung-Turner adaptive beam-forming algorithm with additional robustness to wideband and moving jammers
    IEEE Transactions on Antennas and Propagation, vol. 44, no. 3, pp. 361–367, 1996
  76. Optimal subarray size for spatial smoothing
    IEEE Signal Processing Letters, vol. 2, no. 2, pp. 28–30, 1995
  77. Maximum likelihood estimation of signal power in sensor array in the presence of unknown noise field
    IEE Proceedings - Radar, Sonar and Navigation, vol. 142, no. 5, p. 218, 1995
  78. Experimental results of localization of moving underwater signal by adaptive beamforming
    IEEE Transactions on Signal Processing, vol. 43, no. 10, pp. 2249–2257, 1995
  79. Nonwave field processing using sensor array approach
    Signal Processing, vol. 44, no. 2, pp. 197–210, 1995
  80. Fast algorithm for minimum-norm direction-of-arrival estimation
    IEEE Transactions on Signal Processing, vol. 42, no. 9, pp. 2389–2394, 1994
  81. Eigenvalue analysis of spatial covariance matrices for correlated signals
    Electronics Letters, vol. 28, no. 12, p. 1114, 1992
  82. Simple maximum-likelihood estimator of structured covariance parameters
    Electronics Letters, vol. 28, no. 18, p. 1677, 1992
  83. Direction-of-arrival estimation by using generalised minimum-norm approach
    Electronics Letters, vol. 27, no. 16, p. 1485, 1991
  84. High-resolution direction-finding using eigendecomposition based estimators and joint estimation strategy
    Electronics Letters, vol. 27, no. 25, p. 2308, 1991