Salam Akoum

Principal Member of Technical staff

Advanced Wireless Technologies Group

AT&T Labs

Email: salam[underscore]akoum[at]labs.att.com

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I am a principal member of technical staff at AT&T labs, advanced wireless technology group. I am an active contributor to 3GPP 5G standardization, in particular specifications for the physical layer of the radio interface. Prior to joining AT&T labs, I worked at the center for Social Innovation at Hitachi America R&D, where I investigated connectivity solutions, analytics and traffic optimization for IT and OT convergence, and received the Hitachi above and beyond award in 2014.

I received my Ph.D. in Electrical Engineering from The University of Texas at Austin in December 2012. At UT, I worked within the Wireless Networking and Communication Group (WNCG) under the supervision of Prof. Robert W. Heath, Jr. I graduated with a Bachelor's of Engineering in Computer and Communications Engineering and a minor in Mathematics (Honors) from the American University of Beirut, Lebanon in 2006, and completed my Master's of Science in Electrical Engineering from the University of Utah in 2008. I was a visiting researcher at CentraleSupelec (Supelec), France in 2011. During the course of my PhD, I was an intern at Qualcomm, Nokia Bell Labs, and FutureWei Technologies R&D.

[Research] [Experience] [Patents] [Publications][Awards]

Research Interests

  • Wireless Communications, Digital signal processing, Multiple Antenna Systems

Experience

  • Principal Member of Technical Staff, AT&T Labs, Advanced Radio Technologies Group, August 2016 - Present.
  • Staff Research Engineer at Hitachi America R&D, Network Systems Lab, 2015 - July 2016.
  • Research Engineer at Hitachi America R&D, Wireless Systems Research Group, 2013 - 2015.
  • Research Intern at FutureWei, Wireless Research and Standards group, Summer 2012
  • Research Intern at Bell Labs, Nokia, small cells research project, Paris, France, Summer 2011
  • Visiting PhD student at Alcatel-Lucent Chair on Flexible Radios, Supelec, France, Fall-Spring 2010-2011
  • Engineering Intern at Qualcomm CDMA Technologies (QCT) systems, Santa Clara, California, Summer 2010
  • Research Intern at Alcatel-Lucent Chair on Flexible Radios, Supelec, France, Summer 2009

Patents

Granted

Filed

    • Several patent applications (50+) filed and currently under review

Publications

Book Chapters

Journal Articles

Conference Papers

    • [C1] S. Akoum, A. Thornburg, X. Wang, A. Ghosh, "Robust Beam Management for Mobility in mmWave Systems'', in Proc. of the IEEE Asilomar Conference on Signals, Systems and Computers (Asilomar), Nov. 2018 [ieeexplore]
    • [C2] S. Akoum, X. Wang, and A. Ghosh, '' A Flexible Feedback Framework for 5G Massive MIMO Systems'', in Proc. of the IEEE International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC) Workshop on Massive MIMO/FD-MIMO in 5G Mobile Communications, Oct. 2017 [ieeexplore]
    • [C3] S. Akoum, and J. Acharya, "Vertical Beamforming for Three Dimensional User Placement", in Proc. of the IEEE International Conference on Computing, Networking and Communications, Feb. 2015 [ieeexplore]
    • [C4] J. Acharya and S. Akoum, "Optimizing vertical sectorization for high rises", in Proc. of the IEEE International Conference on Computing, Networking and Communications, Feb. 2015 [ieeexplore]
    • [C5] S. Akoum, and J. Acharya, "Full-Dimensional MIMO for Future Cellular Networks", in Proc. of IEEE Radio Wireless Week Symposium (RWW), Jan. 2014 [ieeexplore].
    • [C6] S. Akoum, and R. W. Heath, Jr., " Multicell Coordination: a Stochastic Geometry Approach", in Proc. of IEEE Intl. Workshop on Signal Processing Advances in Wireless Communications (SPAWC), Jun. 2012 [poster][video of presentation].
    • [C7] S. Akoum, O. El Ayach and R. W. Heath, Jr., "Coverage and Capacity in mmWave Cellular Systems", in Proc. of the IEEE Asilomar Conference on Signals, Systems and Computers (Asilomar), Nov. 2012 [ieeexplore].
    • [C8] S. Akoum, C.S. Chen, M. Debbah, and R. W. Heath, Jr., "Data Sharing Coordination and Blind Interference Alignment for Cellular Networks", in Proc. of the IEEE Global Communications Conference (Globecom), Dec. 2012 [ieeexplore]
    • [C9] S. Akoum, M. Kountouris, M. Debbah and R. W. Heath, Jr., "Spatial Interference Mitigation for Multiple Input Multiple Output Ad hoc Networks: MISO Gains", in Proc. of the IEEE Asilomar Conference on Signals, Systems and Computers (Asilomar), Nov. 2011, Pacific Grove, CA [ieeexplore] [video of presentation].
    • [C10] S. Akoum, M. Kountouris, R. W. Heath Jr., "On Imperfect CSI for the Downlink of a Two-Tier Network", in Proc. of the IEEE International Symposium on Information Theory (ISIT), Aug. 2011, Saint-Petersburg, Russia [ieeexplore] [video of presentation].
    • [C11] S. Akoum, R. W. Heath Jr., "Limited feedback beamforming over temporally correlated channels with other cell interference", in Proc. of the International Conference on Acoustics, Speech, and Signal Processing (ICASSP), Mar. 2010, Dallas, TX [ieeexplore] [video of presentation].
    • [C12] S. Akoum, M. Zwinglstein-Colin, R.W. Heath Jr., M. Debbah, "Cognitive Cooperation for the Downlink of Frequency Reuse Small Cells", in Proc. of the International Workshop on Cognitive Information Processing (CIP), Jun. 2010, Italy. [ieeexplore]
    • [C13] S. Akoum, R. Peng, R. Chen, B. Farhang-Boroujeny, "Markov chain Monte Carlo methods for high SNR regimes", in Proc. of IEEE International conference on Communication (ICC) Jul. 2009, Dresden, Germany. [ieeexplore]
    • [C14] P. Amini, E. Azarnasab, P. Amini, S. Akoum, B. Farhang-Bouroujeny, "An Experimental Cognitive Radio for First Responders", in Proc. of IEEE Dynamic Spectrum Access Conference (DySpan), 2008, Chicago, Il. [ieeexplore]
    • [C15] P. Amini, E. Azarnasab, S. Akoum, X. Mao, H. Rao, B. Farhang-Bouroujeny, "Implementation of a cognitive radio modem", in Proc. of the Software Defined Radio Technical Conference (SDR Forum), Nov. 2007, Denver, Col. [Poster Overview], [Poster Hardware]
    • [C16] S. Akoum, B. Farhang-Bouroujeny, “A phase locked loop with arbitrarily wide lock range for software defined radios, in Proc. of the Software Defined Radio Technical Conference (SDR Forum), Nov. 2007, Denver, Col. [pdf]

PhD Dissertation


Presentations/Talks

    • Panelist on Coloring in the 5G Triangle: Super High Bandwidth, Massive IoT, and Ultra High Reliability , 14th Annual TFI Technology Conference, Jan. 2019
    • Panelist on Separating Users Using Massive MIMO , 5G americas Antenna Evolution Day, May 2018
    • Massive MIMO Solutions in LTE-A and 5G NR, 5G Americas, May 2018
    • Integrated Access and Backhaul for 5G, "Texas Wireless Summit, What started here changed the world", Nov. 2017
    • Full Dimensional MIMO for Future Cellular Networks, RWW 2014 invited speaker for the MIMO and Smart Antennas Session, Jan. 2014.
    • Interference Coordination: Random Clustering and Adaptive Limited Feedback, Futurewei US Wireless standards and research department, May 2012.
    • Spatial interference mitigation with limited coordination for future wireless networks, Bell Labs, Nokia, June 2011.
    • Spatial interference nulling for femtocell networks: Altruistic precoding, European winter school on Information Theory, March 2011.
    • Rate backoff for goodput maximization on the downlink of a heterogeneous network, ECOSCELLS meeting, Orange Labs, France, Feb 2011.


Professional Activities

  • Technical Program Committee: IEEE Vehicular Technology Conf. (VTC) 2014, 2015, 2016, 2017
  • Technical Program Committee: IEEE International Conference on Communication (ICC) - Workshop on Self-organization in Heterogeneous networks, 2013
  • Publicity chair for the IEEE Radio and Wireless Symposium, 2011-2013
  • Reviewer for:
    • IEEE Transactions on Signal Processing, IEEE Transactions on Wireless Communications, IEEE Transactions on Communications, IEEE Wireless Communications Letters, IEEE Wireless Communications Magazine, Wireless Communications and Mobile Computing Journal, EURASIP Journal on Advances in Signal Processing, IEEE GLOBECOM, IEEE ICASSP, IEEE ICC, IEEE VTC, IEEE/EURASIP ICP


Awards and Honors

  • Above and Beyond Award, Hitachi America, Ltd., Sep. 2014.
  • Best paper award, software defined radio technical conference, 2007
  • 2007 Smart radio challenge finalist (top 8 teams)
  • Dean's honor list, American University of Beirut (Fall 2002 - Spring 2006)
  • Scholarship award, National center for scientific research (CNRS), Lebanon, 2002-2006
  • Hariri Foundation award, for outstanding academic achievement, 2002
  • Lebanese Ministry of Education scholarship award, Beirut, Lebanon, 2004
  • Ranked 2nd over Lebanon in the high school national examinations, general sciences (SG)