An improved hybrid STBC scheme with precoding and decision feedback detection

Chang Kyung Sung, Inkyu Lee, Bong Dae Choi

Research output: Contribution to journalConference articlepeer-review


In practical wireless communication systems, the number of the receive antenna is more restricted than that of the transmit antenna. Spatial division multiplexing (SDM) technique normally imposes a restriction that the number of receive antenna should be more than or equal to that of transmit antennas whereas the space time coding (STC) technique can be adopted without such a limitation. The hybrid STBC scheme is a mixture of the above two systems. We propose two approaches to improve the hybrid STBC scheme:a precoding method and a decision feedback detection. Applying a linear precoding matrix with full rank property can improve the performance. Also, the decision feedback detection scheme cancels out the interference using already-detected components. Simulation results show that the proposed methods outperform the conventional hybrid STBC detection algorithm for frequency selective channels and its gain increases for higher modulation level.

Original languageEnglish
Pages (from-to)1328-1332
Number of pages5
JournalIEEE Vehicular Technology Conference
Issue number2
Publication statusPublished - 2004
Event2004 IEEE 60th Vehicular Technology Conference, VTC2004-Fall: Wireless Technologies for Global Security - Los Angeles, CA, United States
Duration: 2004 Sept 262004 Sept 29

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics


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