Newcom within Dept 1 Cluster 2 Coding Design

Newcom within Dept. 1 - Cluster 2 Coding Design for OFDM and MIMO Systems Competences and Collaboration Proposals Antonio Assalini March 9 th-10 th, 2005 Barcelona

(Italy) National Inter-University Consortium for Telecommunications q non-profit consortium q linking 34 Italian Universities q main purpose: to foster research activity and provide networking support to specific projects in the area of telecommunications q 3 universities participating to Newcom Dept. 1: Milan, Padova, and Bologna Padova Bologna Milan

University of Padova Department of Information Engineering (DEI) … our logo … q Active engineering degrees in: Ø Ø Ø … and some information … q q q Ø Academic and Research Personnel Ø 82 Professors Ø 92 Ph. D students and researchers Staff Ø Ø q We support other degrees: Ø Ø Ø 16 Administrative units Ø Ø 15 Technicians Ø Students Ø 3700 Students Automation engineering Bioengineering Electronics Information engineering Computer engineering - even teleteaching Telecommunications Ø Ø Industrial engineering (Chemistry, Mechanical, Electrical), Civil Engineering, Business Faculty of Medicine Faculty of Psychology Faculty of Science of communications Faculty of Statistics Faculty of Management

Ph. D Programs q Ph. D Programs within DEI Ø Ø Ø q Automatic Control and Operation research Bioelectromagnetism and Electromagnetic Compatibility Bioengigneering Electronics and Telecommunications Engineering Computer and Industrial Electronic Engineering Other Ph. D programs: ü Energetic ü Hydrodynamics and Environmental Modeling ü Clinical Methodology ü Space Science and Technology Ph. D summer school on Information engineering Ø It is held once a year at the begging of July in Brixen (North Italy)

Competences and Offers for cooperation

Competence # 1 Coded MIMO-OFDM q Design of improved MIMO radio interfaces for OFDM modulated systems Ø Space-time bit-interleaved coded modulation Performance evaluation Transmitter design Ø Efficient receiver implementation Ø Ø

Offers for Cooperation # 1 Coded MIMO-OFDM q q Coding for OFDMA systems Besides OFDM, we are interested to other schemes Ø Ø q Single carrier transmissions with cyclic prefix insertion (CP-SC) Multicarrier modulators adopting shaping filters (Shaped-OFDM, Filtered Multitone) Comparisons among these solutions Ø Ø Performance evaluation Transmitter and receiver design Low complexity solutions Extension to OFDMA environments

Competence # 2 Single Carrier MIMO q Linear and non-linear precoding schemes for the MIMO broadcast channel (MIMO-BC) Ø q Achieving performance close to “dirty paper” coding ü Vector precoding with peak power reduction by modified sphere encoder ü Study of the optimal (max sum capacity / max min SINR) beamformer for lattice precoding schemes ü Comparison between Tomlinson-Harashima based precoders and vector-perturbation techniques for MIMO channels ü Joint activity with EURECOM (G. Caire) Low-complexity joint detectors for SC-MIMO systems Ø Frequency-domain algorithms for multi-stream interference cancellation (BLAST)

Competence # 3 MIMO MC-CDMA q Design of receivers for MC-CDMA systems Ø Soft interference cancellation techniques q Pre-equalization techniques for MC-CDMA systems Ø Ø q Multi-user pre-equalization for downlink MISO Single user pre-equalization for uplink DSP platform for MC-CDMA Ø Software defined radio platform with ü DSP Texas Instruments C 6400 ü Dual ADC and DAC ü FPGA

Offers for Cooperation # 2 -3 MIMO MC-CDMA q Receivers design for MIMO multi-user MC-CDMA systems Ø Ø Ø q Investigation on V-BLAST receivers for multiple-input multipleoutput (MIMO) extended to multi-user MC-CDMA systems In particular, the work will focus on finding suitable ordering criteria to demodulate symbols and streams of each user In uplink coded MC-CDMA systems, possible schemes to iteratively combine V-BLAST detection and decoding will be investigated (turbo principle) Pre-coded MIMO MC-CDMA systems Ø Investigation on non-linear precoding schemes for downlink

People involved q Team Head Ø q Newcom Cluster 2 Prof. Silvano Pupolin Ø Ø Paola Bisaglia Ø Giambattista Carnevale SC Precoding MIMO Ø phone: +39. 049. 827. 7752 Prof. Nevio Benvenuto Tomaso Erseghe MC-CDMA Federico Boccardi Antonio Assalini antonio. assalini@dei. unipd. it Newcom - Dept. 1 Ø q q q Implementation Aspects Ø Roberto Corvaja name. surname@dei. unipd. it