Risto Wichman

T412 Department of Information and Communications Engineering

In general, my research deals with signal processing techniques in wireless communication systems. This means mostly physical layer in addition to some MAC layer work. Research topics include in-band full-duplex, multiple antenna techniques, massive MIMO, compensation of RF non-idealities using digital signal signal processing, spectrum sharing, cooperative communications, optimization of network topologies, etc. The applied research methods are drawn from, communication theory, detection and estimation theory, stochastic geometry, random matrix theory, linear algebra, large system analysis...

Full researcher profile


Digital signal processing, Wireless Communications


  • Risto Wichman Group


OFDM-based Information Harvesting

Mehmet C. Ilter, M. Ertug Pihtili, Ertugrul Basar, Risto Wichman 2024

Bandit-Based Learning-Aided Full-Duplex/Half-Duplex Mode Selection in 6G Cooperative Relay Networks

Nikolaos Nomikos, Themistoklis Charalambous, Panagiotis Trakadas, Risto Wichman 2024

In-Band Full-Duplex : The Physical Layer

Besma Smida, Risto Wichman, Kenneth E. Kolodziej, Himal A. Suraweera, Taneli Riihonen, Ashutosh Sabharwal 2024

A Closed-Form Approximation of the SIR Distribution in a LEO Uplink Channel

Jouko Angervuori, R. Wichman 2023 2022 IEEE Globecom Workshops (GC Wkshps)

A New Information Harvesting Mechanism for Far-Field Wireless Power Transfer

Mehmet C. Ilter, Risto Wichman, Jyri Hamalainen, Salama Ikki 2023 2023 IEEE 97th Vehicular Technology Conference, VTC 2023-Spring - Proceedings

Information Harvesting for Far-Field RF Power Transfer through Index Modulation

Mehmet C. Ilter, Ertugrul Basar, Risto Wichman, Jyri Hämäläinen 2023 2022 IEEE Globecom Workshops (GC Wkshps)

MABAMS: Multi-Armed Bandit-Aided Mode Selection in Cooperative Buffer-Aided Relay Networks

Nikolaos Nomikos, Themistoklis Charalambous, Risto Wichman 2023 2022 IEEE Globecom Workshops (GC Wkshps)

On Array Geometry and Self-Interference in Full-Duplex Massive MIMO Communications

Robin Rajamäki, Risto Wichman 2023 Conference Record of the 57th Asilomar Conference on Signals, Systems and Computers, ACSSC 2023

Feasibility of Bluetooth Low Energy for motion capturing with Inertial Measurement Units

Pyry Veijalainen, Themistoklis Charalambous, Risto Wichman 2023

Predistortion of OFDM signals for VLC systems using phosphor-converted LEDs

M. Laakso, A. A. Dowhuszko, R. Wichman 2022 2022 IEEE 23rd International Workshop on Signal Processing Advances in Wireless Communication (SPAWC)