Abstract
Transmit diversity techniques have received a lot of attention recently, and open-loop and closed-loop downlink transmit diversity modes for two transmit antennas have been included in the 3GPP WCDMA Release 5. System capacity can be increased from that of open-loop modes if the transmitter can be provided additional side information of the downlink channel. In a frequency division duplex (FDD) system this requires a separate feedback channel. Quantization of the feedback messages in closed-loop transmit diversity schemes reduces the performance of the system. However, this effect has not been usually taken into account in the analysis. In this paper we analyze the effect of quantization and deduce an analytic formula for the asymptotic bit error probability of the closed-loop transmit diversity schemes defined in 3GPP WCDMA specification.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
