MIMO ARQ Systems with Multi-Level Feedback
2009 (English)In: 2009 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY, VOLS 1- 4, 2009, 254-258 p.Conference paper (Refereed)
We consider improving the outage performance of incremental-redundancy automatic repeat request (INR-ARQ) transmission over the multiple-input multiple-output (MIMO) block-fading channel by allowing multi-bit receiver feedback. We show that multi-bit feedback offers significant gain in outage diversity when power adaptation is employed. A suboptimal feedback and power adaptation rule is proposed, illustrating the benefits provided by multi-bit feedback.
Place, publisher, year, edition, pages
2009. 254-258 p.
Block-Fading Channels, Delay Tradeoff, Diversity, Throughput
IdentifiersURN: urn:nbn:se:kth:diva-62614DOI: 10.1109/ISIT.2009.5206027ISI: 000280141400052ScopusID: 2-s2.0-70449504472ISBN: 978-1-4244-4312-3OAI: oai:DiVA.org:kth-62614DiVA: diva2:480797
2009 IEEE International Symposium on Information Theory, ISIT 2009; Seoul; 28 June 2009 through 3 July 2009
QC 201201242012-01-192012-01-192012-01-24Bibliographically approved