Vector perturbation precoding for receivers with limited dynamic range
2009 (English)In: 2009 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, 2009, 2709-2712 p.Conference paper (Refereed)
In this paper we consider the vector perturbation (VP) precoding scheme for the multiuser MISO broadcast channel proposed by Hochwald et al. under the practical assumption that the receivers have limited dynamic range. In this case, VP precoding is shown to suffer from an error floor at high signal-to-noise ratio (SNR). As an alternative, we propose precoding with restricted VP (RVP), which takes the limited dynamic range of the receivers explicitly into account by restricting to a finite set of possible perturbation vectors at the transmitter side. We derive the diversity order of this RVP scheme and show that no error floor occurs and that the performance is superior to VP for the entire range of SNRs.
Place, publisher, year, edition, pages
2009. 2709-2712 p.
, International Conference on Acoustics Speech and Signal Processing ICASSP, ISSN 1520-6149
Multiuser MIMO systems, vector perturbation precoding, diversity order, dynamic range
Fluid Mechanics and Acoustics Other Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-34896DOI: 10.1109/ICASSP.2009.4960182ISI: 000268919201217ScopusID: 2-s2.0-70349202121ISBN: 978-1-4244-2353-8OAI: oai:DiVA.org:kth-34896DiVA: diva2:427954
IEEE International Conference on Acoustics, Speech and Signal Processing Taipei, TAIWAN, APR 19-24, 2009
QC 201106292011-06-292011-06-172016-05-09Bibliographically approved