Ubaidulla Pandarakkottilil is an Assistant Professor in Indian Institute of Technology, Hyderabad, India.

Selected Publications

Ph.D. Thesis:

• P. Ubaidulla, “Robust Precoder and  Transceiver Optimization in Multiuser Multi-antenna Systems,” Department of Electrical Communication Engineering, Indian Institute of Science (IISc), Bangalore, India, Sep. 2010.

Journal Publications:

• P. Ubaidulla and S. Aissa, “Optimal relay selection and power allocation for cognitive two-way relaying networks,”  IEEE Wireless Communications Letters,  vol. 1, no. 3, pp. 225-228, Jun. 2012.
• P. Ubaidulla and A. Chockalingam, “Relay precoder optimization in MIMO-relay networks with imperfect CSI,” IEEE Transactions on Signal Processing, vol. 59, no. 11, pp. 5473-5484, Nov.  2011.
• P. Ubaidulla and A. Chockalingam, “Robust Tomlinson-Harashima precoders for multiuser MISO downlink with imperfect CSI,” Wireless Personal Communications (Springer), vol. 54, no. 1, pp. 53- 68, Jul. 2010.
• P. Ubaidulla and A. Chockalingam, “Robust THP transceiver designs for multiuser MIMO downlink with imperfect CSIT,” EURASIP Journal on Advances in Signal Processing, vol. 2009, Article ID 473930, 13 pages, Feb. 2009.

Conference Publications:

• P. Ubaidulla and S. Aissa, “Robust distributed cognitive relay beamforming,”  in Proc. of IEEE Vehicular Technology Conference (VTC-Spring 2012), Yokohama, Japan, May 2012.
• P. Ubaidulla and S. Aissa, “Robust distributed two-way relay beamforming in cognitive radio networks,” in Proc. of International Conference on Telecommunications (ICT 2012), Jounieh, Lebanon, Apr. 2012.
• P. Ubaidulla and S. Aissa, “Distributed cognitive two-way relay beamformer designs under perfect and imperfect CSI,” in Proc. of  IEEE Personal Indoor and Mobile Radio Communications (PIMRC 2011), Toronto,  Canada, Sep. 2011.
• P. Ubaidulla and A. Chockalingam, “Robust relay precoder design for MIMO-relay networks,” in Proc. of IEEE Wireless Communications and Networking Conference (WCNC 2010), Sydney, Australia, Apr. 2010.
• P. Ubaidulla and A. Chockalingam, “Robust distributed beamforming for wireless relay networks,” in Proc. of IEEE Personal Indoor and Mobile Radio Communications (PIMRC 2009), Tokyo, Japan, Sep. 2009.
• P. Ubaidulla and A. Chockalingam, “Robust joint precoder/receive filter designs for multiuser MIMO downlink,” in Proc. of IEEE International Workshop on Signal Processing Advances in Wireless Communications (SPAWC 2009), Perugia, Italy, Jun. 2009.
• P. Ubaidulla and A. Chockalingam, “Non-linear transceiver designs with imperfect CSI using convex optimization,” in Proc. of IEEE  Wireless Communications and Networking Conference  (WCNC 2009), Budapest, Hungary, Apr. 2009.
• P. Ubaidulla and A. Chockalingam, “Robust THP transceiver designs for multiuser MIMO downlink,” in Proc. of IEEE  Wireless Communications and Networking Conference (WCNC 2009), Budapest, Hungary, Apr. 2009.
• P. Ubaidulla and A. Chockalingam, “Robust transceiver design for multiuser MIMO downlink,” in Proc. of IEEE Global Communications Conference (GLOBECOM 2008), New Orleans, LA, USA, Dec. 2008.
• P. Ubaidulla and A. Chockalingam, “Precoder designs for MIMO broadcast channels with imperfect CSI,” in Proc. of IEEE International Conference on Wireless and Mobile Computing (WiMob 2008), Avignon, France, Oct. 2008.
• P. Ubaidulla and A. Chockalingam, “Robust MMSE Tomlinson-Harashima precoder for multiuser MISO downlink with imperfect CSI,” in Proc. of  International Symposium on Wireless Personal Multimedia Communications (WPMC 2007), Jaipur, India, Dec. 2007.
• P. Ubaidulla and N.Ravikiran, “Iterative differential decorrelation for nonstationary blind source separation,” in Proc. of IEEE International Conference on Signal Processing (ICSP 2004), Beijing, China, Sep. 2004.
• N. Ravikran and P. Ubaidulla, “Support vector machine approach to drag coefficient estimation,” in Proc. of IEEE International Conference on Signal Processing (ICSP 2004), Beijing, China, Sep. 2004.

Publications

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Education Profile

• Ph.D. in Electrical Communication Engineering, Indian Institute of Science (IISc), Bangalore, India (August 2005 – September 2010).
• M.S. in Communication Systems, National Institute of Technology (NIT), Trichy, India (September 1999- January 2001).
• B.S. in Electronics and Communication Engineering, National Institute of Technology (NIT), Kozhikode, India (September 1993- June 1997).