Andres Kwasinski, Ph. D.


Education    Employment    Professional Activities    Publications


Education

# 2004: Ph.D., Electrical and Computer Engineering,
University of Maryland, College Park.
Dissertation: Cross-Layer Resource Allocation Protocols for Multimedia CDMA Networks.
Advisor: Professor Nariman Farvardin.


# 2000: M.Sc., Electrical and Computer Engineering,
University of Maryland, College Park.


# 1992: Electrical Engineer (Ingeniero Electrónico),
Instituto Tecnológico de Buenos Aires (ITBA), Argentina.





Employment

2006 – Present:
Software Design Engineer
Texas Instruments Inc.
Wireless Infrastructure Group, Germantown, MD
# Researching, analyzing, designing, implementing, and optimizing digital signal processing algorithms and protocols for 4G wireless mobile communications (especially those operating with the WiMAX and LTE standard).
# Monitoring the development of wireless air interface standards.

2004 – 2006:
Postdoctoral Research Associate
University of Maryland, College Park, MD.
Department of Electrical and Computer Engineering and Institute for Systems Research (ISR)
# Research focus:
o Application of user-cooperation techniques to interactive multimedia communication.
o Cross-layer designs for wireless multimedia communication.
o Performance analysis of joint source-channel coded multimedia systems.
# Graduate advising experience (with Prof. K. J. Ray Liu):
o Amr El Sherif: Design and analysis of multiple access and flow control protocol for speech transmission with user cooperation.
o Karim Seddik: Information-theoretic study of source-channel diversity for multi-hop and relay channels.
# Undergraduate advising experience (with Prof. K. J. Ray Liu):
o Research Internships in Telecommunications Engineering (RITE) program: Construction of a sensor network testbed.
o Students: Waseem Malik and Alexander Weissman.

1998 – 2004:
Graduate Research Assistant
University of Maryland, College Park, MD.
Department of Electrical and Computer Engineering
# Research focus:
o Cross-layer methods to extend the operation of voice and video wireless networks beyond congestion.
o Cross-layer resource allocation and multiple access protocols for video/voice/data integration in CDMA and wireless local area networks.
o Joint source-channel coding using incremental redundancy with feedback for delay-constrained communication.
o Turbo codes.

2000 – 2004:
Laboratory Manager
University of Maryland, College Park, MD.
Communication and Signal Processing Laboratory
# Administer various computing resources, develop and manage laboratory’s website.
# Assist faculty laboratory director.

Fall 1998, Spring 1999, Spring 2004:
Graduate Teaching Assistant
University of Maryland, College Park, MD.
Department of Electrical and Computer Engineering
# Lead recitation sessions, held office hours, graded homework, projects and exams in the following courses:
o Random Processes in Communication and Control (Graduate Course).
o Engineering Probability (Undergraduate Honors Course).
o Computer Organization (Undergraduate Honors Course).
o Electronics Circuits Laboratory.

1995-1998:
Senior Product Training Specialist
Lucent Technologies, Buenos Aires, Argentina
# Delivered courses on corporate telephony switches and related equipment to employees and clients.
# Developed a Spanish version of the Definity PBX system administrator course. The course was taught in Argentina and Colombia.
# Represented Lucent in establishing a knowledge exchange relationship with the Buenos Aires Institute of Technology (ITBA). Supervised installation of communication equipment in a telecommunications laboratory and trained faculty. Organized seminars and talks by Bell Labs researchers.
# Was responsible for contracting and billing clients and managing the expense budget for the training offices and facilities.
# Represented the training unit in the “Country Council”, top hierarchical interdepartmental organization in Lucent Argentina.

1994:
Junior Engineer
AT&T, Buenos Aires, Argentina
# Supervised installation and conducted acceptance test of cellular and fiber optics communication equipment.

1993:
Junior Engineer
Pecom-NEC, Buenos Aires, Argentina
# Programmed in C language the signaling modules for the NEAX61XS rural-area public telephone switch.

1992 – 1998:
Laboratory Assistant
Buenos Aires Institute of Technology, Buenos Aires, Argentina
Applied Digital Electronics Group (GEDA)
# Assisted faculty in developing evaluation modules (EVMs) and applications for digital signal processors and microprocessors boards.
# Worked with the Motorola DSP56000 Digital Signal Processor chip, Motorola HC-11 and HC-05 family of microcontrollers and Motorola 64000 microprocessor.

1990 – 1993:
Teaching Assistant
Buenos Aires Institute of Technology, Buenos Aires, Argentina
Department of Electrical Engineering
# Led recitation and laboratory sessions, in the following courses:
o Electric Circuits and Machines.
o Circuits Theory with Digital Signal Processing.
o Microprocessor Laboratory.



Professional Activities

# Member (1998 – Present), Institute of Electrical and Electronics Engineers (IEEE).

# Conference Technical Program Committee Member:
- 2006 IEEE Consumer Communications and Networking Conference (CCNC).
- 2007 IEEE Consumer Communications and Networking Conference (CCNC).
- 2007 IEEE Globecom 2007 – Multimedia Communications Software and Services Symposium.
- 2008 IEEE Consumer Communications and Networking Conference (CCNC).
- 2008 IEEE Wireless Communications and Networking Conference (WCNC).

# Session Chair:
- 2006 IEEE Wireless Communications and Networking Conference (WCNC), sessions “Resource Management in Wireless Networks” and “Cellular Network Design”.
- 2007 IEEE Globecom 2007, session “Multimedia Systems and Applications”.
- 2007 IEEE Globecom 2007, Design and Developers Forum, session “Next Generation Mobile Wireless Broadband Technologies”.

# Reviewer:
- IEEE Transactions on Wireless Communications.
- IEEE Journal on Selected Areas in Communications.
- IEEE Transactions on Information Theory.
- IEEE Transactions on Vehicular Technology.
- IEEE Journal of Selected Topics in Signal Processing.
- EURASIP Journal on Applied Signal Processing.
- IEEE Communications Letters.
- IEEE Wireless Communications Magazine.
- IEEE International Symposium on Information Theory (ISIT).
- IEEE International Conference on Communications (ICC).
- Global Communications Conference (GLOBECOM).
- IEEE Wireless Communications and Networking Conference (WCNC).
- Vehicular Technology Conference (VTC).
- Packet Video Workshop.


# Invited Talks:
- University of Maryland, ECEGSA (Electrical and Computer Engineering Graduate Student Association) ECE Seminar Series. Gave a presentation entitled “Optimal Cross-Layer Resource Allocation in CDMA based on Real-Time Source Encoder Adaptation” (February 2006).
- Polytechnic University, Brooklyn, NY, USA, Integrated Information Systems (IIS) Laboratory Seminar. Gave a presentation entitled “Cross-Layer CDMA Resource Allocation for Real-Time Traffic in Fading Channels” (August 2003)
- University of Maryland, ECEGSA (Electrical and Computer Engineering Graduate Student Association) Graduate Student Seminar. Gave a presentation on turbo codes and iterative decoding using soft information (September 2000).

# Author and creator of the The Digital Signal Processing Blog.
# Member of the Board of Directors: University of Maryland Engineering Alumni Chapter (2005-2006).
# Graduate Student Representative, University of Maryland’s Athletic Council (09/02 – 05/04). The athletic council is the primary body that advises the University President on all matters relating to intercollegiate athletics.
# Graduate Student Representative, University of Maryland Senate’s Human Relations Committee (09/03 - 05/04).
# Graduate Student Representative, University of Maryland Campus Recreation Advisory Board (09/03 - 05/04).


Publications

Journals

[1] A. Kwasinski and K. J. R. Liu, ``Towards a Unified Framework for Modeling and Analysis of Diversity in Joint Source-Channel Coding'', to appear in IEEE Transactions on Communications.

[2] Z. Han, A. Kwasinski and K. J. Ray Liu, ``Downlink Resource Allocation for Multimedia CDMA Networks Based on Real-Time Dynamic Joint Source Channel Coding'', IEEE Transactions on Communications, vol. 54, issue 9, pp. 1682-1692, Sept. 2006.

[3] Z. Han, G-M. Su, A. Kwasinski, M. Wu, K. J. R. Liu, ``Multiuser Distortion Management of Layered Video over Resource Limited Multicode-CDMA'', IEEE Transactions on Wireless Communications, vol. 5, issue 11, pp. 3056-3067, Nov. 2006.

[4] A. Kwasinski, M. Alasti, K. J. R. Liu, N. Farvardin, ``A Low Complexity Source Encoding Assisted Multiple Access Protocol for Voice/Data Integrated Networks'', EURASIP Journal on Applied Signal Processing, vol. 2005, issue 2, pp. 193-206, 2005.

[5] A. Kwasinski and K. J. R. Liu, ``Source-Channel-Cooperation Performance Analysis for Multimedia Communications'', revised, IEEE Transactions on Wireless Communications.

[6] A. El Sherif, A. Kwasinski, A. K. Sadek and K. J. R. Liu, "Content-Aware Cooperative Multiple Access Protocol for Packet Speech Communications”, submitted to IEEE Journal of Selected Topics in Signal Processing.

[7] K. G. Seddik, A. Kwasinski and K. J. R. Liu, ``Source-Channel Diversity over Relay Channels'', submitted to IEEE Transactions on Communications.

[8] A. Kwasinski, N. Farvardin, ``Optimal Resource Allocation for Arbitrary Adaptive Real-Time Sources in CDMA Networks with Application to MPEG4 FGS'' in preparation.

Conferences

[1] A. El Sherif, A. Kwasinski, A. K. Sadek and K. J. R. Liu, ``Content-Aware Cooperative Multiple Access Protocol for Packet Speech Communications'', submitted to 2007 IIEEE Global Telecommunications Conference (IEEE GLOBECOM 2007).

[2] A. Kwasinski and K. J. R. Liu, ``Characterization of Distortion-SNR Performance for Practical Joint Source-Channel Coding Systems'', submitted to 2007 IIEEE Global Telecommunications Conference (IEEE GLOBECOM 2007).

[3] K. G. Seddik, A. Kwasinski and K. J. R. Liu, ``Distortion Exponents for Different Source- Channel Diversity Achieving Schemes over Multi-Hop Channels'', in Proceedings of IEEE Intl. Conf. on Communications (ICC), vol. 3, pp. 969-974, Glasgow, Scotland, June 2007.

[4] J. Goldstein, A. Kwasinski, P. Kingsbury, R. Evans Sabin and A. McDowell, ``Annotating Subsets of the Enron Email Corpus'', Third Conference on Email and Anti-Spam, CEAS 2006, vol. 1, pp. 39-40.

[5] A. Kwasinski and K. J. R. Liu, ``Optimal Unequal Error Protection with User Cooperation for Transmission of Embedded Source-Coded Images”, IEEE International Conference on Image Processing (ICIP), pp. 717-720, Atlanta, GA, October, 2006.

[6] A. Kwasinski, H. V. Zhao, K. J. R. Liu, ``On QoS Constraints and Joint Source-Channel Coding for Real-Time Cooperative Multimedia Communications”, Proc. of 2006 IEEE Wireless Communications and Networking Conference, (WCNC), vol. 1, pp. 106-111, Las Vegas, NV, April, 2006.

[7] A. Kwasinski, Z. Han, K. J. R. Liu, ``Cooperative multimedia communications: Joint source coding and collaboration”, in 2005 Proceedings of IEEE Global Telecommunications Conference (GLOBECOM),, vol. 1, pp. 374-378, Saint Louis, MO, Nov.-Dec. 2005.

[8] A. Kwasinski, Z. Han, K. J. R. Liu, ``Joint Source Coding Diversity and Cooperative Diversity for Multimedia Communications”, in Proceedings of IEEE International Workshop on Signal Processing Advances for Wireless Communications (SPAWC), pp. 129-133, New York, NY, June 2005.

[9] A. Kwasinski, N. Farvardin, ``Optimal Resource Allocation for CDMA Networks Based on Arbitrary Real-Time Source Coders Adaptation with Application to MPEG4 FGS'', in Proceedings of IEEE Wireless Communications and Networking Conference (WCNC), vol. 4, pp. 2010-2015, Atlanta, GA., March 2004.

[10] A. Kwasinski, Z. Han, K. J. R. Liu, ``Dynamic Real Time Distortion Management Over Multimedia Downlink CDMA'', in Proceedings of IEEE Wireless Communications and Networking Conference (WCNC), vol. 4, pp. 2214-2219, Atlanta, GA., March 2004.

[11] G-M. Su, Z. Han, A. Kwasinski, M. Wu, K.J.R. Liu, ``Distortion Management of Real-time MPEG-4 FGS Video over Downlink Multicode CDMA Networks'', in Proceedings of IEEE Intl. Conf. on Communications (ICC), vol. 5, pp. 3071-3075, Paris, France, June 2004.

[12] A. Kwasinski, N. Farvardin, ``Extending Operation of a CDMA Network Beyond Congestion by Cross-Layer Resource Allocation for Real-Time Traffic in Fading Channels'', in Proceedings of Allerton Conference, pp. 1860 –1869, Monticello, IL, October 2004.

[13] A. Kwasinski, M. Alasti, N. Farvardin, K. J. R Liu ``Highly Efficient, Low Complexity Source-Assisted Multiple Access Protocol", in Proceedings of Allerton Conference, pp. 675- 684, Monticello, IL, October 2004.

[14] Z. Han, A. Kwasinski, K. J. Ray Liu and N. Farvardin, ``Pizza Party Algorithm for Real Time Distortion Management in Downlink Single-Cell CDMA Systems", in Proceedings of Allerton Conference, Monticello, IL, October 2004.

[15] A. Kwasinski, N. Farvardin, ``Resource Allocation for CDMA Networks Based on Real-Time Rate Adaptation'', in Proceedings of IEEE Intl. Conf. on Communications (ICC), vol. 5, pp. 3307-3311, Anchorage, AK, May 2003.

[16] A. Kwasinski, V. Chande, N. Farvardin, ``Delay-Constrained Joint Source-Channel Coding using Incremental Redundancy with Feedback'', in Proceedings of IEEE Information Theory Workshop, pp. 283-286, Paris, France, March-April 2003.

[17] A. Kwasinski, Z. Han, K. J. R. Liu, N. Farvardin, ``Power Minimization under Real-Time Source Distortion Constraints in Wireless Networks'', in Proceedings of IEEE Wireless Communications and Networking Conference (WCNC), vol. 1, pp. 532 -536 , New Orleans, LA, March 2003.

Other

[1] A. Kwasinski, ``Turbo Encoding/Decoding and Complexity/Performance Issues with Short Frames'', University of Maryland, Dept. of Electrical and Computer Engineering.

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