Dual-Hop OSTBC Transmissions Over Fading Channels Under Receiver Phase Noise for Regenerative Systems
Space-time coding for fading channels is a Communication technique that realizes the diversity benefits of multiple transmit antennas. Previous work in this area has focused on the narrowband flat fading case where spatial diversity only is available. In this paper, the authors investigate the use of space-time coding in OFDM based broadband systems where both spatial and frequency diversity are available. They consider a strategy which basically consists of coding across OFDM tones and will therefore be called space-frequency coding.