Acta Metallurgica Sinica(English letters) ›› 2007, Vol. 14 ›› Issue (4): 22-26.doi: 1005-8885 (2007) 04-0022-05

• Wireless • Previous Articles     Next Articles

Joint detection and combining schemes in MIMO-HARQ systems

XIE Gang; XIONG Fang; ZHAO Yi; LIU Yuan-an   

  1. Ministry of Education Key Lab of Universal Wireless Communications, Beijing University of Posts and Telecommunications
  • Received:2007-03-09 Revised:1900-01-01 Online:2007-12-24
  • Contact: XIE Gang


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.

Key words:

MIMO; HARQ; maximal-ratio combining (MRC); throughput