Igor’s research and work over the past 8+ years covered algorithms and applications centered around the PHY, MAC, and networking layers of communications systems. His first research role back in 2013 focused on signal processing algorithms for interference cancellation and multiple-input multiple-output (MIMO) processing in G.fast Digital Subscriber Lines based on the discrete multitone (DMT) modulation scheme. In this position, he also participated in a project focusing on multi-rate signal processing and highly parallelized DSP schemes for optical communications.
In 2014, as a master’s student, he started working on clock synchronization solutions for the so-called fronthaul of fifth-generation (5G) transport networks, namely the network segment connecting the baseband processing to the radio-frequency (RF) frontend. At this time, Igor focused on implementing one of the first published FPGA-based testbeds for clock synchronization experiments over an Ethernet-based fronthaul network. This work paved the way for his subsequent deeper investigations conducted as a Ph.D. student.
He started the Ph.D. program in 2016 and dedicated his research to applying the IEEE 1588 precision time protocol (PTP) over the scenario of PTP-unaware Ethernet fronthaul networks. Using sophisticated signal processing and estimation strategies, he demonstrated nanosecond accuracy figures capable of enabling the most advanced 5G multi-cell and multi-user MIMO transmission schemes.
From 2017 to 2018, he also worked on another unique clock synchronization problem: the distribution of timing over 60 GHz millimeter-wave (mmWave) wireless systems based on the IEEE 802.11ad standard. He participated in the H2020 Project 5G-PICTURE on behalf of Blu Wireless Technology (Bristol, UK), where, at the time, he was taking a year-long internship. His research focused on strategies to distribute PTP over 802.11ad and the synchronization performance achievable over real mmWave hardware.
Since the conclusion of the Ph.D. program, Igor has been working full-time on the Blockstream Satellite project. He spends most of his time developing solutions and operating a satellite network based on the DVB-S2 standard.