Weighted Sum Rate Optimization for Multicell MIMO Systems with Hardware-Impaired Transceivers
2014 (English)Conference paper (Refereed)
Physical transceivers exhibit distortions from hardware impairments, of which traces remain even after compensation and calibration. Multicell MIMO coordinated beamforming methods that ignore these residual impairments may suffer from severely degraded performance. In this work, we consider a general model for the aggregate effect of the residual hardware impairments, and propose an iterative algorithm for finding locally optimal points to a weighted sum rate optimization problem. The importance of accounting for the residual hardware impairments is verified by numerical simulation, and a substantial gain over traditional time-division multiple access with impairments-aware resource allocation is observed.
Place, publisher, year, edition, pages
IEEE Signal Processing Society, 2014. 479-483 p.
, International Conference on Acoustics Speech and Signal Processing ICASSP, ISSN 1520-6149
interference alignment, transceiver hardware impairments, Weighted sum rate optimization
Signal Processing Telecommunications
Research subject Electrical Engineering
IdentifiersURN: urn:nbn:se:kth:diva-141944DOI: 10.1109/ICASSP.2014.6853642ISI: 000343655300097ScopusID: 2-s2.0-84905233702ISBN: 978-1-4799-2893-4ISBN: 978-147992892-7OAI: oai:DiVA.org:kth-141944DiVA: diva2:699156
2014 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2014; Florence; Italy; 4 May 2014 through 9 May 2014
Simulation source code is available at https://github.com/rasmusbrandt/icassp2014_TxImpairments
QC 201501232014-02-262014-02-262015-01-23Bibliographically approved