• Basics
  • Arquitectures for wideband radio communication (AMEBA)
  • Digital hybrid for a quadrature RF front-end
  • Multistandard RF receiver with digital image rejection
  • Synchronization for the ARTEMIS satellite modem
  • HF modem for data/voice aeronautical communications

• Systems
  • Reliability analysis of WLL with OFDM access
  • Interference cancellation techniques for TDMA/CDMA
  • Transmission techniques and RF propagation for UTRA-TDD

• Development
  • Multimode Integrated Circuit for mobile communications (CIMCO)
  • Single ended channel conditioning device (SECOND)
  • Twin Channel Single Transceiver for PCS (TWIST)

Basics

Arquitectures for wideband radiocommunication (AMEBA)

• Supported by Ministry of Science and Technology (Main financial support)
• Sponsored by Airtel, Alcatel and Nokia - They provide manpower
  
• Should study the potential of DSP solutions for the 4th(?) generation of mobile communication systems, providing up to 100 Mbps in the WLAN environment
  
• Solutions integrate RF front-end and signal processing
  
• GAPS is responsible for developing the signal processing algorithms and demonstrating its performance on off-the-shelf hardware
• LSI is responsible for IC development AMEB

Development

Multimode Integrated Circuit for mobile communications (CIMCO)

• Cooperative Effort with UPC, CNM, ..
• Equalization of time-dispersive RF channels for DECT with existing nonlinear RF front-ends
• Time-dispersion of usable RF channels for DECT was increased

The CIMCO chip

Single ended channel conditioning device (SECOND)

• Cooperative Effort with DIE, IMEC, Alcatel-MIETEC, ..
• All complex elements concentrated at one end (equalization and predistortion)
• Time-dispersion of usable RF channels for DECT was doubled
• One patent granted

• Cooperative Effort with DIE, Swindon Silicon Systems, ..
• 0-IF and conventional multitransceiver board capable of handling two antennas and two RF channels per antenna
• Antenna diversity and double bitrate implemented
• Standardized by ETSI
• One patent granted

The TWIST board for DSP