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Low-Complexity Distance-Based Scheduling for Multi-User XL-MIMO Systems
- Publication Year :
- 2021
-
Abstract
- We introduce DBS, a new technique for user selection in downlink multi-user communications with extra-large (XL) antenna arrays. DBS categorizes users according to their equivalent distance to the antenna array. Such categorization effectively accounts for inter-user interference while largely reducing the computational burden. Results show that (i) DBS achieves the same performance as the reference zero-forcing beamforming scheme with a lower complexity; (ii) a simplified version of DBS achieves a similar performance when realistic spherical-wavefront (SW) propagation features are considered; (iii) SW propagation brings additional degrees of freedom, which allows for increasing the number of served users.<br />Comment: This work has been submitted to the IEEE for possible publication. Copyright may be transferred without notice, after which this version may no longer be accessible
Details
- Database :
- arXiv
- Publication Type :
- Report
- Accession number :
- edsarx.2104.13690
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1109/LWC.2021.3101940