Quantized feedback design for MIMO broadcast channels
2007 (English)In: 2007 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2007, 1-4 p.Conference paper (Refereed)
Low-rate feedback design for multiple-input multiple-output broadcast channels is studied under a vector quantization framework. Iterative algorithms are proposed to design the partial feedback link, the scheduler, and the linear precoding code-book. It is demonstrated that the gain due to multi-user diversity can be significant even with heavily quantized channel state information at the transmitter. Our results highlight the potential of multi-user diversity, even with simple schemes and extremely-low-rate feedback.
Place, publisher, year, edition, pages
2007. 1-4 p.
, International Conference on Acoustics Speech and Signal Processing ICASSP, ISSN 1520-6149
fading channels, quantization, broadcast channels, feedback communications, information rates
IdentifiersURN: urn:nbn:se:kth:diva-28990DOI: 10.1109/ICASSP.2007.366457ISI: 000248906600001ScopusID: 2-s2.0-34547534415OAI: oai:DiVA.org:kth-28990DiVA: diva2:395620
32nd IEEE International Conference on Acoustics, Speech and Signal Processing Honolulu, HI, APR 15-20, 2007
QC 201102072011-02-072011-01-252011-11-07Bibliographically approved