Risto Wichman

Working paper

BEP analysis of OSTBC-OFDM systems with broadband PA and imperfect memory compensation

Gregorio, F., Werner, S., Hämäläinen, J., Wichman, R. & Cousseau, J., 2007, Espoo, (Teknillisen korkeakoulun Signaalinkäsittelytekniikan laboratorion raporttisarja; no. 59).

Research output: Working paper › Professional

Measurement based analysis of gain-diversity tradeoff in relay transmission

Haneda, K., Riihonen, T., Kolmonen, V-M., Wichman, R., Vainikainen, P. & Takada, J., 2008, Trondheim, Norway, (COST 5th Management Committee Meeting; no. TD(08)549).

Research output: Working paper › Professional

On the Feasibility of Full-Duplex Relaying in the Presence of Loop Interference

Riihonen, T., Werner, S. & Wichman, R., 2009, (The 10th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2009, Perugia, Italy, June 21-24, 2009).

Research output: Working paper › Professional

136 Citations (Scopus)

Single-bit closed-loop quasi-orthogonal space-time codes for MIMO systems

Werner, S., Wichman, R. & Riihonen, T., 2009, (The 10th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2009, Perugia, Italy, June 21-24, 2009).

Research output: Working paper › Professional

1 Citation (Scopus)

Poster

On the Use of Existing 4G Small Cell Deployments for 5G V2N Communication

Saeed, U., Hämäläinen, J., Mutafungwa, E., Wichman, R., Gonzalez, G. D. & García-Lozano, M., 2019.

Research output: Contribution to conference › Poster › Scientific › peer-review

Open Access

File

5 Downloads (Pure)

Patent

Allocation method, network element, module and user device

Hämäläinen, J., Tiirola, E. & Wichman, R., 2009, Patent No. US Patent 7596167

Research output: Patent

Apparatus, and associated method, for space-time encoding, and decoding, data at a selected code rate

Hämäläinen, J. & Wichman, R., 2006, Patent No. USAUS Patent 6999472 (14.02.2006)

Research output: Patent

Communication on multiple beams between stations

Wichman, R., Tirkkonen, O. & Kashaev, R., 2007, Patent No. USAUS 7310537

Research output: Patent

Communication system and method using transmit diversity

Hamalainen, J. & Wichman, R., 6 Jul 2006, IPC No. H04B 7/ 06 A I, Patent No. US2006148427, Priority date 6 Mar 2006, Priority No. US20060367447

Research output: Patent

DATA TRANSMISSION METHOD AND A RADIO SYSTEM

Kärna, J., Toskala, A., Soininen, P., Kalliojärvi, K., Hottinen, A. & Wichman, R., 2003, Patent No. United States PatentUS 6,594,248 B1

Research output: Patent

Downlink Swiched Transmission Diversity Based on Power Control

Wichman, R., 2005, Patent No. YhdysvallatUS Patent US 6915116 (5.7.2005)

Research output: Patent

Joint Transmitter Antenna Diversity and Complex Diversity Transform

Hottinen, A., Wichman, R. & Correia, A., 2006, Patent No. USAUS 6987959(17.1.2006)

Research output: Patent

Menetelmä Informaation välittämiseksi tiedonsiirtojärjestelmässä, tiedonsiirtojärjestelmä, verkkoelementti sekä langaton viestin

Wichman, R. & Ranta, P., 2004, Patent No. Suomi - Finland, FI 113818 B

Research output: Patent

Menetelmä ja radiojärjestelmä digitaalisen signaalin siirtoon

Hottinen, A. & Wichman, R., 2002, Patent No. Suomi- FinlandFI 108588 B

Research output: Patent

METHOD AND ARRANGEMENT FOR FORMING A BEAM

Hottinen, A. & Wichman, R., 2003, Patent No. United States PatentUS 6,584,302 B1

Research output: Patent

Method for controlling the weighting of a data signal in the at least two antenna elements of a radio connection unit, radio connection unit, module and communications system

Hottinen, A., Tirkkonen, O. & Wichman, R., 2006, Patent No. SuomiEP 1366579(15.11.2006)

Research output: Patent

METHOD OF IMPLEMENTING MACRODIVERSITY

Toskala, A. & Wichman, R., 2002, Patent No. United States PatentUS 6, 359,865 B1

Research output: Patent

Transceiver method in a radio system and a radio system

Hämäläinen, J., Niemelä, K. & Wichman, R., 2007, Patent No. US Patent 7257424

Research output: Patent

Transmission Antenna Diversity

Hottinen, A. & Wichman, R., 2003, Patent No. Kiina99805390.2

Research output: Patent

TRANSMISSION ANTENNA DIVERSITY

Hottinen, A. & Wichman, R., 2003, Patent No. European Patent OfficeEP 1 074 098 B1

Research output: Patent

Transmission antenna diversity using individual antenna route signal shaping

Hottinen, A. & Wichman, R., 11 Aug 2015, IPC No. US, Patent No. 9106392, Priority date 24 Apr 1998

Research output: Patent

Transmission diversity with two cross-polarised antennas arrays

Hämäläinen, J. & Wichman, R., 2006, Patent No. US Patent 7136627 (14.11.2006)

Research output: Patent

Vastaanottomenetelmä ja vastaanotin

Wichman, R. & Hottinen, A., 2002, Patent No. Suomi - FinlandFI 109735 B

Research output: Patent

Entry for encyclopedia / dictionary

Full-Duplex in Wireless Communications

Riihonen, T. & Wichman, R., 15 Aug 2016, Wiley Encyclopedia of Electrical and Electronics Engineering. Wiley

Research output: Chapter in Book/Report/Conference proceeding › Entry for encyclopedia / dictionary › Scientific › peer-review

Editorial

Communication technology and system design (Foreword)

Wichman, R. & Sumesh, E. P., 2014, In : Telecommunication Systems. 56, 3, p. 323-325 3 p.

Research output: Contribution to journal › Editorial › Scientific

In-Band Full-Duplex Wireless Communications and Networks

Sabharwal, A., Schniter, P., Guo, D., Bliss, D. W., Rangarajan, S. & Wichman, R., Sep 2014, In : IEEE Journal on Selected Areas in Communications. 32, 9, p. 1633-1636 4 p.

Research output: Contribution to journal › Editorial › Scientific

67 Citations (Scopus)

Conference contribution

Accurate Characterization and Compensation of Phase Noise in OFDM Receiver

Mathecken, P., Riihonen, T., Werner, S. & Wichman, R., 2012, ACSSC 45th Annual Asilomar Conference on Signals, Systems, and Computers (ACSSC), Pacific Grove, California, November 2011. p. 1948-1952 5 p. 6190364. (Conference Record of the Asilomar Conference on Signals Systems and Computers).