David López Pérez

Bell Labs Distinguished Member of Technical Staff (DMTS)

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I earned my PhD degree in Wireless Communications at the University of Bedfordshire (UoB), Luton, UK in Apr. 2011, and received my Bachelor and Master degrees in Telecommunications from the Miguel Hernandez University (UMH), Elche, Spain in Sep. 2003 and Sep. 2006, respectively.

From May 2012 to Feb. 2020, I was with Nokia Bell Labs (former Alcatel-Lucent), Dublin, Ireland, where I was a Senior Research Scientist, and worked at different positions, all of them related to small cell and future indoor network research.

  • In 2019, I was recognised as Bell Labs Distinguished Member of Technical Staff for "sustained outstanding technical contributions to Nokia".
  • In 2016, I was given the IEEE Com Soc Best Young Professional Industry Award in recognition of "my outstanding contributions to the industry in terms of innovative Communications Research and Development, specially in the area of networking techniques for cellular networks" .
  • In 2015, I was honored as invited speaker in the Bell Labs Presidential Lecture Series -- "an invitation that a Bell Labs researcher can expect to receive once every 100 years".
  • In 2015, I visited on rotation the Murray Hill and the Crawford Hill locations for 9 months and work on Wi-Fi Boost.

From Aug. 2011 until Jan. 2012, I was a Research Associate at King's College London (KCL), London, UK, where I investigated inter-cell interference coordination schemes for heterogeneous networks.

From May 2007 to Dec. 2010, I was a Marie-Curie PhD Fellow at University of Bedfordshire (UoB), Luton, UK, where I participated in both the FP6 Marie Curie research project "RANPLAN-HEC ” (MESTCT-2005-020958), and the first EPSRC-funded research project on femtocells “The feasibility study of WiMAX based femtocells for indoor coverage” (EP/F067364/1), and investigated self-organising and femtocell networks.

In 2006, I took up a research scholarship at Cork Institute of Technology (CIT), Cork, Ireland, where I worked for a year on a project called “UbiOne – The Multi-Modal WiFi Positioning System”. The main goal of the project was to prove that the major disadvantages of the poor accuracy of existing indoor location systems can be overcome by fusing two complementary location techniques, radio signal strength indication (RSSI) and radio signal time of flight (TOF) with a unique self-calibrating approach.

In 2005, I was with VODAFONE SPAIN, working at the Radio Frequency Department in the area of network planning and optimization, where I participated in the development of the VODAFONE Automatic Frequency Planning tool for GSM and DCS networks.

Research interest

  • OFDMA and WCDMA technologies
  • IEEE 802.11 technology and standards
  • 3GPP NR, LTE-A Pro, LTE-A and UMTS technology and standards
  • Unlicensed technologies, i.e., LWIP, LWA, LAA, muLTEFire 
  • Network planning and optimization
  • Heterogeneous and small cell networks
  • Self-organizing networks
  • Massive MIMO sub-6GHz
  • Usage of higher frequency bands (>6GHz)
  • Multi-antenna techniques, i.e., beam-forming, spatial multiplexing, pre-coding
  • Dual connectivity
  • Dynamic TDD and full-duplex
  • Back-haul issues
  • Cooperative communications
  • Optimization techniques
  • Machine learning
  • System-level simulation
  • Propagation modeling