Abstract

Taking into consideration that perfect channel state information (CSI) is prohibitive in practice and imperfect CSI degrades system performance remarkable, we extends the joint transceiver design for multiuser multiple-input multiple-output (MIMO) downlink with perfect CSI to imperfect CSI where each user equipped with multiple antennas. We discussed the correlated case and uncorrelated case respectively. The proposed robust joint design aims to minimize all the users' sum mean-squared-error (MSE) under the constraint of total transmit power. By utilizing the channel error covariance information and moreover the correlation information in spatial correlated channel during the design process, the proposed transceiver design incorporates the impact of the imperfect CSI and spatial correlation, thus it is rather robust to channel errors and spatial correlation. Simulation results also indicate that the robustness of the proposed joint transceiver designs with imperfect CSI in independent channels as well as spatial correlated channels.

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 call

Disclaimer: 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.