Orthogonality Structure Designs for Generalized Precoding Aided Spatial Modulation

Yuwen Cao, Tomoaki Ohtsuki

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


In this letter, we propose an orthogonality structure design (OSD) for the generalized precoding aided spatial modulation (GPSM) to overcome the performance degradation caused by correlated fading channels. To improve the bit error rate (BER) performance of GPSM system, we devise an efficient receive antenna subset selection (RAS) technique relied on the mechanisms of maximizing the equivalent channel gain. To facilitate a better trade-off between performance and computational complexity, we study the peculiarities of the Hermitian matrix which provides an important insight for conceiving orthogonality conditions to the channel matrix of GPSM system. We prove that the performance gain in terms of BER can be attained with the aids of the proposed efficient RAS, and OSD-aided schemes with low-complexity. In particular, our results demonstrate that the OSD-aided scheme is capable of providing significant BER performance improvement for GPSM systems, compared to that of current strategies.

Original languageEnglish
Article number8723515
Pages (from-to)1406-1409
Number of pages4
JournalIEEE Wireless Communications Letters
Issue number5
Publication statusPublished - 2019 Oct


  • Orthogonality structure design
  • correlated fading channels
  • generalized precoding aided spatial modulation

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering


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