Transmit phase control to increase the minimum eigenvalue of channel correlation matrix in the E-SDM/OFDM System

Ryuichirou Shimura, Tsutomu Ohno, Tomokazu Kambayashi, Iwao Sasase

Research output: Contribution to journalConference article


In multiple-input multiple-output (MIMO) systems, eigen-beam space division multiplexing (E-SDM) system has been proposed for mitigating the effect of co-channel interference (CCI). Received signal to noise ratio (SNR) in the E-SDM system depends on the eigenvalues of the channel correlation matrix. Consequently, the bit error rate (BER) performance of the data stream multiplied by the minimum eigenvalue is degraded in comparison with that of another data stream. We propose E-SDM/OFDM system to control the eigenvalues of a channel correlation matrix by using transmit phase control. Computer simulation results indicate the proposed E-SDM/OFDM system with transmit phase control can improve the BER performance compared with E-SDM/OFDM system without using transmit phase control

Original languageEnglish
Pages (from-to)2024-2028
Number of pages5
JournalIEEE Vehicular Technology Conference
Issue number3
Publication statusPublished - 2004 Dec 1
Event2004 IEEE 60th Vehicular Technology Conference, VTC2004-Fall: Wireless Technologies for Global Security - Los Angeles, CA, United States
Duration: 2004 Sep 262004 Sep 29


ASJC Scopus subject areas

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

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