• Editor-in-Chief, IEEE Transactions on Communications (Jan 2016-Dec 2019)

  • Keynotes Co-Chair for IEEE WCNC Conference, 2024

  • Guest Editor for a Special Issue of IEEE Journal on Selected Areas in Communications (JSAC) on Next Generation Multiple Access, 2022

  • Guest Editor for a Special Issue of IEEE Communications Magazine on Reconfigurable Intelligent Surfaces: Design and Implementation, 2021

  • Guest Editor for a Special Issue of IEEE Journal on Selected Areas in Communications (JSAC) on Massive Access for 5G and Beyond, 2021

  • Guest Editor for a Special Issue of IEEE Journal on Selected Areas in Communications (JSAC) on UAV Communications in 5G and Beyond Networks, 2021

  • Guest Editor for a Special Issue of IEEE Open Journal of the Communications Society (OJ-COMS) on Large Scale Wireless Powered Networks with Backscatter Communications, 2020

  • Guest Editor for a Special Issue of IEEE Journal on Selected Areas in Communications (JSAC) Spatial Modulation in Emerging Wireless Systems, 2019

  • Guest Editor for a Special Issue of IEEE Journal on Selected Topics in Signal Processing (JSTSP) on Signal Processing Advances for Non-Orthogonal Multiple Access (NOMA) in Next Generation Wireless Networks, 2019

  • Guest Editor for a Special Issue of IEEE Wireless Communications Magazine on Non-Orthogonal Multiple Access (NOMA) for 5G, 2018

  • Guest Editor for a Special Issue of IEEE Access Journal on Non-Orthogonal Multiple Access (NOMA) for 5G Systems, 2018

  • Keynotes Co-Chair for IEEE Globecom Conference, 2018

  • Area Editor (Wireless Communications), IEEE Transactions on Communications (October 2011- Dec 2015)

  • Technical Program Co-Chair, ISPLC'15

  • Editor (Wireless Communications), IEEE Transactions on Communications (2002-2011)

  • Editor, IEEE Transactions on Signal Processing (2000-2003)

  • Editor, IEEE Communications Letters (2000-2002)

  • Member of IEEE Signal Processing for Communication (SP4COM) Technical Committee from January 2002 to December 2007

  • Member of IEEE Signal Processing Theory and Methods (SPTM) Technical Committee from January 2005 to December 2010

  • Guest Editor for EURASIP Journal on Advances in Signal Processing October 2010 Special Issue on "Advances in Single Carrier Block Modulation with Frequency Domain Processing"

    (download CFP)

  • Lead Guest Editor for a special issue of IEEE JSTSP on DSP Techniques for Analog/RF Impairments, 2008

  • Member of Technical Program Committee for numerous IEEE Conferences including Globecom, ICC, Asilomar, ICASSP, ITW,SPAWC, ISSPIT, WCNC.

  • Guest Editor for IEEE Transactions on Signal Processing October 2002 Special Issue on "Signal Processing Techniques for Space-Time-Coded Transmissions"

    (download CFP)

  • Co-Chair of the Communication Theory Symposium at IEEE Globecom Conference in November 2004.

  • Tutorials Co-Chair for ICASSP'08 in Las Vegas.