| Paper: | SAM-L1.1 | ||
| Session: | MIMO Systems and Space-Time Coding | ||
| Time: | Tuesday, May 18, 15:30 - 15:50 | ||
| Presentation: | Lecture | ||
| Topic: | Sensor Array and Multichannel Signal Processing: MIMO systems and space-time decoding | ||
| Title: | A MAXIMIN APPROACH FOR ROBUST MIMO DESIGN: COMBINING OSTBC AND BEAMFORMING WITH MINIMUM TRANSMIT POWER REQUIREMENTS | ||
| Authors: | Antonio Pascual-Iserte; Polytechnic University of Catalonia (UPC) | ||
| Ana I. Pérez-Neira; Polytechnic University of Catalonia (UPC) | |||
| Miguel Ángel Lagunas; Telecommunications Technological Center of Catalonia (CTTC) | |||
| Abstract: | In this paper we address the problem of the design of a transmitter in a Multi-Input-Multi-Output (MIMO) space diversity system. We consider a design which is robust to errors in the channel estimate available at the transmitter. The design is based on the minimization of the necessary transmit power while guaranteeing a minimum and specified Quality of Service (QoS) in terms of Signal to Noise Ratio (SNR) with a certain probability. According to this objective, the transmitter exploits all the eigenmodes of the MIMO channel estimate, distributing the transmit power in a robust way among the channel modes by using orthonormal temporal signatures. In order to guarantee a full rate transmission, the orthonormal temporal signatures designed for real constellations in Orthogonal Space Time Block Codes (OSTBC) are used, leading to a system structure based on the combination of OSTBC and orthogonal weighted beamforming. | ||
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