Abstract
Sparse code multiple access (SCMA) is a novel non-orthogonal multiple access scheme for 5G systems, in which based stations are usually equipped with multiple antennas. In this letter, we propose a novel resource-selection based message passing algorithm (RSB-MPA) detector for uplink SCMA systems with multiple receive antennas. In the proposed RSB-MPA detector, several resources are selected to perform the Jointly Gaussian Algorithm and the remaining are to perform the maximum likelihood algorithm. The resource selection criterion is based on the minimum distance at each resource, which is lower bounded by the minimum singular value of the corresponding channel matrix. Simulation results show that the RSB-MPA detector can significantly reduce the computational complexity with slight performance degradation.
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.
