Abstract
In this letter, uplink sum rate of large-scale multiuser MIMO systems with maximum ratio combining receivers is analyzed. To be practical, no perfect channel state information is assumed, and both large scale path loss and small scale Rayleigh fading are considered. The large scale path losses experienced by multiple users are also assumed to be non-identical due to different locations of the users. A tight upper bound is derived in closed-form. Its tightness is verified by simulations. It is shown that the proposed upper bound is tighter than other bounds and the tightness is further improved when the system becomes larger, i.e., more antennas are deployed at the receiver. It thus provides a solid foundation for system design and optimization.
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.
