158 citations · 350 across the 23 of their papers we have counts for
10 papers · 1 filter
Digital Cancellation of Passive Intermodulation in FDD Transceivers
Muhammad Zeeshan Waheed, Pablo Pascual Campo, Dani Korpi +3
Modern radio systems and transceivers utilize carrier aggregation (CA) to meet the demands for higher and higher data rates. However, the adoption of CA in the existing Long Term E…
Digital Predistortion in Large-Array Digital Beamforming Transmitters
Alberto Brihuega, Lauri Anttila, Mahmoud Abdelaziz +1
In this article, we propose a novel digital predistortion (DPD) solution that allows to considerably reduce the complexity resulting from linearizing a set of power amplifiers (PAs…
Benefits of Positioning-Aided Communication Technology in High-Frequency Industrial IoT
Mike Koivisto, Olga Galinina, Sergey Andreev +6
The future of industrial applications is shaped by intelligent moving IoT devices, such as flying drones, advanced factory robots, and connected vehicles, which may operate (semi-)…
Transparent Tx and Rx Waveform Processing for 5G New Radio Mobile Communications
Toni Levanen, Juho Pirskanen, Kari Pajukoski +2
Several different waveform processing techniques have been studied and proposed for the 5G new radio (NR) physical layer, to support new mixed numerology and asynchronous services.…
Positioning of High-speed Trains using 5G New Radio Synchronization Signals
Jukka Talvitie, Toni Levanen, Mike Koivisto +3
We study positioning of high-speed trains in 5G new radio (NR) networks by utilizing specific NR synchronization signals. The studies are based on simulations with 3GPP-specified r…
Performance Comparison of Constant Envelope and Zero-forcing Precoders in Multiuser Massive MIMO
Alberto Brihuega, Lauri Anttila, Mikko Valkama
In this article, the adoption and performance of a constant envelope (CE) type spatial precoder is addressed in large-scale multiuser MIMO based cellular network. We first formulat…