Title :
MIMO Hybrid-ARQ Utilizing Lower Rate Retransmission over Mobile WiMAX System
Author :
Chen, Cheng-Ming ; Hsu, Jen-Yuan ; Kuo, Ping-Heng ; Ting, Pang-An
Author_Institution :
Ind. Technol. Res. Inst., Hsinchu, Taiwan
Abstract :
A novel multiple-input multiple-output (MIMO) hybrid automatic retransmission request (HARQ) scheme using a different MIMO mode retransmission, called lower rate retransmission (LRR) scheme, is proposed in this paper. A MIMO mode with a higher diversity order than the initial transmission is used for retransmission to enhance the performance. The performance of LRR scheme has been investigated via Monte Carlo simulations. The proposed scheme can achieve better performance with a lower complexity as compared to conventional MIMO-HARQ schemes used in IEEE 802.16e.
Keywords :
MIMO communication; Monte Carlo methods; WiMax; automatic repeat request; diversity reception; mobile radio; MIMO hybrid ARQ; Monte Carlo simulation; automatic retransmission request scheme; diversity order; mobile WiMAX system; Block codes; Covariance matrix; Degradation; Diversity reception; Fading; MIMO; Receiving antennas; Samarium; Symmetric matrices; WiMAX; HARQ; MIMO; SFBC;
Conference_Titel :
Mobile WiMAX Symposium, 2009. MWS '09. IEEE
Conference_Location :
Napa Valley, CA
Print_ISBN :
978-1-4244-3989-8
Electronic_ISBN :
978-0-7695-3719-1
