Group-blind detection with very large antenna arrays in the presence of pilot contamination
Name
Win_Group-blind.pdf
Size
412.49 KB
Format
Adobe PDF
Checksum (MD5)
447b6b07815926b297f27148d3cc3e76
Author(s)
Geraci, G.
Quek, T. Q. S.
Win, Moe Z
Ferrante, Guido Carlo
Date Issued
May 2016
Journal
2016 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Citation
Ferrante, G. C. et al. “Group-Blind Detection with Very Large Antenna Arrays in the Presence of Pilot Contamination.” IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 20-25 March, 2016, Shanghai, China, IEEE, 2016.
Version
Original manuscript
Abstract
Massive MIMO is, in general, severely affected by pilot contamination. As opposed to traditional detectors, we propose a group-blind detector that takes into account the presence of pilot contamination. While sticking to the traditional structure of the training phase, where orthogonal pilot sequences are reused, we use the excess antennas at each base station to partially remove interference during the uplink data transmission phase. We analytically derive the asymptotic SINR achievable with group-blind detection, and confirm our findings by simulations. We show, in particular, that in an interference-limited scenario with one dominant interfering cell, the SINR can be doubled compared to non-group-blind detection.
MIT Department
Massachusetts Institute of Technology. Department of Aeronautics and Astronautics
Massachusetts Institute of Technology. Laboratory for Information and Decision Systems
Terms of Use
Creative Commons Attribution-Noncommercial-Share Alike
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1109/ICASSP.2016.7472368
