MIMO Common Feedback Method for Multicast H-ARQ Transmission

Young-Ho JUNG

IEICE TRANSACTIONS on Communications   Vol.E93-B    No.1    pp.222-225
Publication Date: 2010/01/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E93.B.222
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Terrestrial Radio Communications
common feedback,  multicast,  H-ARQ,  MBMS,  MBS,  

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An orthogonal sequence based MIMO common feedback method for multicast hybrid automatic-repeat-request (H-ARQ) transmission is presented. The proposed method can obtain more diversity gain proportional to the number of transmit antennas than the conventional on-off keying (OOK) based common feedback method. The ACK/NACK detection performance gain of the proposed scheme over the OOK based method is verified by analysis and computer simulation results.