Spectral efficiency and energy efficiency optimization via mode selection for spatial modulation in MIMO systems

Ming Chun Lee, Wei Ho Chung

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

In this paper, we consider the multiple-input-multiple-output (MIMO) system employing spatial modulation (SM)-based transmission in Rayleigh fading channels with known slow-varying large-scale fading loss and channel correlations. Observing that the system performance is affected by transmission mechanisms and configurations, we propose a framework enabling the selection of the transmission mode for the optimal spectral efficiency (SE) or energy efficiency (EE) while conforming to transmission and error rate requirements with low complexity. In the framework, a closed-form error rate approximation is proposed. It renders the formulated SE-and EE-based selection problems solvable via naive exhaustive search method. Moreover, we propose to reduce the complexity via using lookup tables. Computer simulations are provided to evaluate the framework.

Original languageEnglish
Article number7524808
Pages (from-to)3506-3511
Number of pages6
JournalIEEE Transactions on Vehicular Technology
Volume66
Issue number4
DOIs
StatePublished - Apr 2017

Keywords

  • Bit-error rate (BER)
  • Energy efficiency (EE)
  • Spatial modulation (SM)
  • Spectral efficiency (SE)
  • Transmission mode selection

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