Title :
MIMO ARQ Systems with multi-Level feedback
Author :
Nguyen, Khoa D. ; Rasmussen, Lars K. ; Fabregas, Albert Guillén i ; Letzepis, Nick
Author_Institution :
Inst. for Telecommun. Res., Univ. of South Australia, Adelaide, SA, Australia
fDate :
June 28 2009-July 3 2009
Abstract :
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.
Keywords :
MIMO communication; automatic repeat request; fading channels; radio receivers; ARQ; MIMO; incremental-redundancy automatic repeat request transmission; multi-bit receiver feedback; multi-level feedback; multiple-input multiple-output block-fading channel; AWGN; Automatic repeat request; Decoding; Fading; Feedback; GSM; MIMO; Mutual information; OFDM; Power system modeling;
Conference_Titel :
Information Theory, 2009. ISIT 2009. IEEE International Symposium on
Conference_Location :
Seoul
Print_ISBN :
978-1-4244-4312-3
Electronic_ISBN :
978-1-4244-4313-0
DOI :
10.1109/ISIT.2009.5206027
