Acta Metallurgica Sinica(English letters)

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A Kind of Quasi-Orthogonal Space-Time Block Codes and its Decoding Methods

ZHAO Rui; LI Yan; YANG Da-cheng   

  1. Telecommunication Engineering School, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Received:2005-03-03 Revised:1900-01-01 Online:2006-03-30
  • Contact: ZHAO Rui

Abstract: It is well known that it is impossible for complex orthogonal space-time block codes with full diversity and full rate to have more than two transmit antennas while non-orthogonal designs will lose the simplicity of maximum likelihood decoding at receivers. In this paper, we propose a new quasi-orthogonal space-time block code . The code is quasi-orthogonal and can reduce the decoding complexity significantly by employing zero-forced and minimum mean squared error criteria. This paper also presents simulation results of two examples with three and four transmit antennas respectively.

Key words: diversity; ML; MMSE, MIMO; QOSTBC; ZF

CLC Number: