Joint detection and combining schemes in MIMO-HARQ systems |
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Authors: | XIE Gang XIONG Fang ZHAO Yi LIU Yuan-an |
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Affiliation: | Ministry of Education Key Lab of Universal Wireless Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China |
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Abstract: | This article mainly investigates the combining schemes for hybrid automatic retransmission request (HARQ) protocols in multiple-input multiple-output (MIMO) wireless communication systems. A novel scheme, which joins MIMO detection and HARQ combining, called mid-combining, is presented in this article. Based on the position of HARQ combining, we classify the HARQ combining schemes into three types, named pre-combining, mid-combining, and post-combining. The simulation results show that mid- combining can increase the system throughput for all SNRs. |
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Keywords: | MIMO HARQ maximal-ratio combining (MRC) throughput |
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