A smart approach to combine low power consumption and costs with high performance.

Satisfying the need - the need for speed.

MIMAX Project

Publications

MIMAX publications



MIMAX shows its scientific progress by the listed publications

Magazine and journal articles

F. Ellinger, J. Wagner, U. Mayer and R. Eickhoff, "Passive varactor tuned equivalent transmission line phase shifter at C-band in 0.25 µm BiCMOS" in Circuits, Devices & Systems, IET, 2(4) , pp. 355-360, 2008.

P. Sperandio, "MIMAX, new services over new communication" in Area Science Park Magazine, Jan. 2009.

F. Ellinger, U. Jörges, U. Mayer and R. Eickhoff, "Analysis and Compensation of Phase Variations Versus Gain in Amplifiers Verified by SiGe HBT Cascode RFIC" in IEEE Transactions on Microwave Theory and Techniques, vol. 57, pp. 1885-1894, 2009.

R. Eickhoff, R. Kraemer, I. Santamaría and L. G. Pérez, "Integrated low power RF-MIMO transceiver for enhanced 802.11a short-range communication" in IEEE Vehicular Technology Magazine, to appear, 2009.

J. Via, I. Santamaria, V. Elvira and R. Eickhoff, "A general criterion for analog Tx-Rx beamforming under OFDM transmissions" in IEEE Transactions on Signal Processing, 2009.

U. Mayer, F. Ellinger and R. Eickhoff, "Analysis and Reduction of Phase Variations of Variable Gain Amplifiers verified by CMOS Implementation at C-Band" in IET Circuits, Devices & Systems, to appear, 2010.

Conference contributions

R. Eickhoff, F. Ellinger, U. Mayer and I. Santamaria, "Low Cost RF Adaptive Antenna Combining" in Proceedings of the Semiconductor Conference Dresden (SCD), Dresden, Germany, 23-24 April, 2008.

R. Eickhoff, U. Mayer, F. Ellinger and C. Scheytt, "High Performance and low power consuming MIMO systems using Adaptive Antenna Combining in the RF domain" in Proceedings of the Microwave Technology and Techniques Workshop, 2008.

Z. Stamenkovic, M. Giles and F. Russi, "Scan-Through-TAP: Combining Scan Chain and Boundary Scan Features in SOC" in Proceedings of the IEEE European Test Symposium, Lago Maggiore, Italy, 25-29 May, 2008.

R. Eickhoff, F. Ellinger, U. Mayer, M. Wickert, I. Santamaria, R. Kraemer, L. Gonzalez, P. Sperandio and T. Theodosiou, "MIMAX – Exploiting the maximum performance and minimum system costs of wireless MIMO systems" in Proceedings of the 17th ICT Mobile and Wireless Summit 2008, Stockholm, Sweden, 10-12 June, 2008.

I. Santamaría, V. Elvira, J. Vía, D. Ramírez, J. Pérez, J. Ibáсez, R. Eickhoff and F. Ellinger, "Optimal MIMO Transmission Schemes with Adaptive Antenna Combining in the RF Path" in Proceedings of the 16th European Signal Processing Conference (EUSIPCO), Lausanne, Switzerland, 25-29 August, 2008.

P. Sperandio, M. Ferrarini and B. Pregarz, "Future Technology to Support VoIP and IP Communications" in Wireless Technology for IP communications, Rome, Italy, October, 2008.

R. Eickhoff, R. Kraemer, I. Santamaría, L. G. Pérez, P. Sperandio and H. Neophytou, "Integrated low power RF-MIMO transceiver for enhanced 802.11a short range communication" in Wireless World Research Forum WWRF Meeting 21, Stockholm, Sweden, 13-15 October, 2008.

R. Eickhoff, F. Ellinger, I. Santamaría and R. Kraemer, "Digital base band processing for short range RF-MIMO communication" in Proceedings of the RadioTecC 2008, Berlin, Germany, 15-16 October, 2008.

R. Eickhoff, F. Ellinger, U. Mayer, M. Wickert, L. González, N. Fiebig and C. Scheytt, "Analogue front-end design for 802.11a with spatial RF processing" in Proceedings of the RadioTecC 2008, Berlin, Germany, 15-16 October, 2008.

R. Eickhoff, F. Ellinger, R. Kraemer and I. Santamaría, "MIMAX – Enhancing existing short range WLANs with MIMO features" in Proceedings of the RadioTecC 2008, Berlin, Germany, 15-16 October, 2008.

F. Ellinger, R. Eickhoff, U. Mayer and M. Wickert, "Radio Frequency Integrated Circuits for Adaptive Beamforming" in IEEE Radio and Wireless Week (invited talk) and IEEE Radio and Wireless Symposium, January, 2009.

J. Vía, V. Elvira, I. Santamaría and R. Eickhoff, "Minimum BER beamforming in the RF domain for OFDM transmissions and linear receivers" in IEEE International Conference on Acoustics, Speech and Signal Processing, April, 2009.

O. Gago, L. González and R. Eickhoff, "Study of the optimum number of radiating elements for different portable devices operating in a MIMO system" in European Wireless Conference, May, 2009.

Z. Stamenković, M. Giles and F. Russi, "Combining Internal Scan Chains and Boundary Scan Register: A Case Study" in IEEE Region 8 EUROCON 2009 International Conference, May, 2009.

J. Vía, V. Elvira, I. Santamaría and R. Eickhoff, "Analog Antenna Combining for Maximum Capacity under OFDM Transmissions" in IEEE International Conference on Communications, June, 2009.

U. Mayer, R. Eickhoff and F. Ellinger, "Compact Circulator Based Phase Shifter at C-Band in BiCMOS" in IEEE Radio Frequency Integrated Circuits Symposium, June, 2009.

R. Eickhoff, U. Mayer, F. Ellinger, L. González and I. Santamaría, "Performance evaluation of wireless MIMO radios with RF, IF and base band spatial processing" in ICT Mobile and Wireless Summit, June, 2009.

O. Gago, L. González, R. Eickhoff and I. Santamaría, "MIFA: Modified IFA radiating element for small handheld devices" in ICT Mobile and Wireless Summit, June, 2009.

M. Wickert, R. Eickhoff, U. Mayer, I. Santamaría and J. Ibanez, "Simulation framework for RF-MIMO performance evaluation" in ICT Mobile and Wireless Summit, June, 2009.

F. Oudati, J. Vía, I. Santamaría, R. Eickhoff and M. Wickert, "Simplified RF Architectures for Analogue Antenna Combining" in ICT Mobile and Wireless Summit, June, 2009.

Z. Stamenković, K. Tittelbach-Helmrich, M. Krstić, J. Perez, J. Via and J. Ibanez, "Architecture of an Analog Combining MIMO System Compliant to IEEE802.11a" in ICT Mobile and Wireless Summit, June, 2009.

J. Vía, V. Elvira, J. Ibánez and I. Santamaría, "Optimal Precoding for a Novel RF-MIMO Scheme in Transmit Correlated Rayleigh Channels" in IEEE Workshop on Signal Processing Advances in Wireless Communications, 2009.

R. Eickhoff, F. Ellinger, R. Kraemer and I. Santamaría, "MIMO radios for next generation WLANs" in EEEfCOM, June, 2009.

V. Elvira and J. Via, "Diversity techniques for analog combining schemes: design and performance evaluation" in European Signal Processing Conference, Aug., 2009.

Z. Stamenkovic, "Advanced MIMO Systems for Maximum Reliability and Performance" in DAAD Workshop on Embedded System Design, Oct., 2009.

U. Mayer, M. Wickert, R. Eickhoff and F. Ellinger, "An Automatically Matched CMOS Attenuator for C-Band with Improved Control Linearity" in International IEEE Conference on Microwaves, Communications, Antennas and Electronic Systems, Nov., 2009.

N. Joram, U. Mayer, R. Eickhoff and F. Ellinger, "Fully Integrated Active CMOS Vector Modulator for 802.11a Compliant Diversity Transceivers" in International IEEE Conference on Microwaves, Communications, Antennas and Electronic Systems, Nov., 2009.

Z. Stamenkovic, E. Miletic, M. Obrknezev and K. Tittelbach-Helmrich, "MAC Protocol Implementation in RF-MIMO WLAN" in IEEE International Conference on Electronics, Circuits, and Systems, Dec., 2009.

L. Vielva, J. Vía, J. Gutiérrez, Ó. González, J. Ibáñez and I. Santamaría, "Building a web platform for learning advanced digital communications using a MIMO testbed" in IEEE Int. Conf. on Acoust., Speech, and Signal Processing, March, 2010.

J. Vía, I. Santamaría, V. Elvira and R. Eickhoff, "A general criterion for pre-FFT MIMO beamforming" in IEEE International Conference on Communications, May, 2010.

Workshops

Internal meeting, Specification of RF front-end integration, February, 2008.

R. Eickhoff, MIMAX overview and cluster "Ubiquitous Radio Access and Spectrum Management" participation, in FP6-FP7 Concertation Meeting, Brussels, Belgium, 11-12 March, 2008.

Internal meeting, Specification of system architecture, link budget, interface, and algorithms, May, 2008.

Conertation meeting, RAS cluster participation; "Air Interface" working group; participation in hot topic discussion groups "coding", "multi-carrier transmission" and "multi-user communications", in FP6-FP7 Concertation Meeting, Brussels, Belgium, September, 2008.

Internal meeting, RF front-end architecture and fabrication plan, October, 2008.

Project meeting, Evaluation of the first year results and achievements; Definition and schedule of future tasks and work, October, 2008.

P. Sperandio, Customer presentation, Small dissemination meetings and workshops in Dec. and Jan., 2008/09.

Exploitation workshop, Rome, Italy, January, 2009.

Exploitation workshop, Limassol, Cyprus, February, 2009.

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