Athanasios Lioumpas

Telecommunications Engineer (Communication, Networking and Broadcast Technologies)

Athanasios Lioumpas (Dipl.Eng. 2005, Ph.D. 2009, M.Sc 2020, ) is an experienced telecommunications engineer and researcher with specialization in mobile and fixed telephony networks. Career highlights: - 10 years of working experience with telecom vendors (NOKIA) and operators (Forthnet, Cyta Hellas), as a network design engineer (MVNO, mobile core, IMS, VoLTE, VoWifi, NFV-based mobile core). - 12 years (overlapping) of working experience as research engineer (Industry, Universities, Research Institutes), involved in major European-funded projects in the area of 4G/5G mobile networks, M2M/MTC and IoT. - Co-author of more than 50 high-impact research papers (more than 1200 citations), incl. a best paper award (IEEE ICC). - Co-inventor of 5 patents. - Associate Editor, IEEE Communications Letters (2013-2017)


  • Channel Quality Estimation Index (CQEI): A long-term performance metric for fading channels and an application in EGC receivers
  • Optical wireless communications with adaptive subcarrier PSK intensity modulation
  • Adaptive generalized selection combining (A-GSC) receivers
  • Energy efficient cooperative scheduling based on sleep-wake mechanisms
  • Adaptive subcarrier PSK intensity modulation in free space optical systems
  • Blind ratio combining (BRC): An optimum diversity receiver for coherent detection with unknown fading amplitudes
  • Low complexity amplify and forward relaying without channel amplitude estimation
  • Variable-rate M-PSK communications without channel amplitude estimation
  • Coordinated tethering for devices with multi-RAT capabilities: An algorithmic solution and performance analysis
  • Channel Quality Estimation Index (CQEI): An improved performance: Criterion for wireless communications systems over fading channels
  • On the switching rate of ST-MIMO systems with energy-based antenna selection
  • Sensing Principles for Biomedical Telemetry
  • Expanding LTE for devices: Requirements, deployment phases and target scenarios
  • Reliable and energy efficient communications for wireless biomedical implant systems
  • Selective cooperative relaying over time-varying channels
  • Analytical modelling and performance evaluation of realistic time-controlled M2M scheduling over LTE cellular networks
  • Interference minimization in hybrid WiFi/cellular networks
  • Enhancing the efficiency of cluster-based networks through MISO techniques
  • Increasing power efficiency in transmitter diversity systems under error performance constraints
  • Switching rate in selective cooperative relaying
  • Adaptive M-PSK communications in the absence of channel gain estimation
  • Evolution of packet scheduling for Machine-Type communications over LTE: Algorithmic design and performance analysis
  • Increasing the efficiency of rake receivers for ultra-wideband applications
  • Uplink scheduling for Machine-to-Machine communications in LTE-based cellular systems
  • Exploiting spatial correlation in distributed MIMO networks
  • Energy efficient AF relaying under error performance constraints with application to M2M networks
  • On the Energy Consumption Forecasting of Data Centers Based on Weather Conditions: Remote Sensing and Machine Learning Approach
  • Performance aware resource allocation and traffic aggregation for user slices in wireless HetNets
  • M2M scheduling over LTE: Challenges and new perspectives
  • Another look at multibranch switched diversity systems
  • Increasing power efficiency in transmitter diversity systems under error performance constraints
  • Partitioning of distributed MIMO systems based on overhead considerations
  • θ-QAM: A parametric quadrature amplitude modulation family and its performance in AWGN and fading channels
  • An improved approximation for the Gaussian Q-function
  • A hybrid contention/reservation medium access protocol for Wireless Sensor Networks
  • Reliable and energy-efficient communications for wireless biomedical implant systems
  • Performance analysis of variable-angle quadrature amplitude constellations
  • Hybrid threshold-based selection diversity receivers for efficient resources utilization
  • Slotted ALOHA With NOMA for the Next Generation IoT
  • A Robust OFDM IM-QAM NOMA Scheme for URLLC and eMBB Downlink Service Coexistence
  • A Robust OFDM IM-QAM NOMA Scheme for URLLC and eMBB Downlink Service Coexistence

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Athanasios Iossifides

Athanasios Iossifides

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