aDPerahia site

(I actually did something while I was at school.)

I completed my Ph.D. in December '95. My research at UCLA was in digital radio communication systems, under the direction of Professor Gregory Pottie. My research interests included diversity combining, adaptive antennas, equalization, power control, and radio channel modeling. I was involved in the Adaptive High Bit-Rate Wireless Transceivers and the Low-Power Transceiver projects.






Here's me presenting at the
International Conference on
Communications '94.

Publications (in pdf)

  • Dissertation: "Diversity Combining, Adaptive Antennas, and Equalization for Digital Radio"
  • "Combined Distributed Power Control, Antenna Array, and Equalizer Adaptation for Indoor Radio", submitted to Trans. on Comm. (700 Kbytes) and title page (60 Kbytes)
  • "Adaptive Antenna Arrays and Equalization for Indoor Digital Radio" , ICC'96 (200 Kbytes)
  • "On Diversity Combining for Correlated Slowly Flat-Fading Rayleigh Channels" , ICC'94 (260 Kbytes)
  • "Shadow fading cross correlation between basestations", VTC Spring 2001
  • "Shadow fading correlation between uplink and downlink", VTC Spring 2001
  • Patents (in pdf)

  • US Patent Number: 6064645, "Bulk Filtering and Demodulation of Independent FDMA Sources", May 16, 2000 (505 Kbytes)
  • US Patent Number: 6070074, "Method for Enhancing the Performance of a Regenerative Satellite Communications System", May 30,2000 (800 Kbytes)
  • US Patent Number: 6088416, "Method for Reducing Interference and Increasing Spectral Efficiency", July 11, 2000 (521 Kbytes)
  • US Patent Number: 6138261, "Concatenated Coding System for Satellite Communications", Oct. 24, 2000 (749 Kbytes)
  • US Patent Number: 6150977, "Method for Enhancing the Performance of a Satellite Communications System Using Multibeam Antennas", Nov. 21, 2000 (811 Kbytes)
  • US Patent Number: 6188896, "Cellular Satellite Communication System and Method for Controlling Antenna Gain Pattern", Feb. 13, 2001 (983 Kbytes)
  • US Patent Number: 6320850B1, "Satellite Communication Adaptive Control Coding", Nov. 20, 2001 (889 Kbytes)
  • US Patent Number: 6321065B1, "Performance Enhancement of Open-Loop Power Control for Satellite Communications Systems", Nov. 20, 2001 (1029 Kbytes)
  • US Patent Number: 6466569, "Uplink transmission and reception techniques for a processing satelliteation satellite", Oct. 15, 2002
  • US Patent Number: 6512749, "Downlink transmission and reception techniques for a processing communication satellite", Jan. 28, 2003
  • Resume (in PDF)


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