Title :
Transmit Antenna Selection Scheme for HARQ in MIMO OFDM Systems with Multiple Codewords Transmission
Author :
Seo, Bangwon ; Lee, Heesoo ; Chung, Hyun Kyu
Author_Institution :
Electron. & Telecommun. Res. Inst., Daejeon
Abstract :
In this paper, we propose a transmit antenna selection scheme for hybrid automatic retransmission request (HARQ) in multi-input multi-output (MIMO) OFDM systems with the multiple codeword (MCW) transmission and the successive decoding and cancellation (SDC) receiver. When a mobile station fails to decode a packet, the mobile station sends a NACK signal for the packet to the base station. We propose a method to select the transmit antenna for retransmission in case that there is no additional feedback except the NACK signal. Analytical and numerical results show that the proposed scheme has a better SINR performance and a lower number of retransmission than the conventional scheme.
Keywords :
MIMO communication; OFDM modulation; decoding; radio receivers; transmitting antennas; HARQ; MIMO OFDM systems; cancellation receiver; hybrid automatic retransmission request; mobile station; multiinput multioutput OFDM systems; multiple codewords transmission; selection scheme; successive decoding; transmit antenna; Antenna feeds; Base stations; Decoding; Feedback; MIMO; OFDM; Performance analysis; Receiving antennas; Signal to noise ratio; Transmitting antennas; Hybrid ARQ; MIMO systems; PARC; multiple codewords; spatial multi-plexing; successive decoding;
Conference_Titel :
Consumer Electronics, 2007. ISCE 2007. IEEE International Symposium on
Conference_Location :
Irving, TX
Print_ISBN :
978-1-4244-1109-2
Electronic_ISBN :
978-1-4244-1110-8
DOI :
10.1109/ISCE.2007.4382124
