Molecular Index Modulation with Space-Time Equalization

Mustafa Can Gursoy, Ahmet Celik, Ertugrul Basar, Ali E. Pusane, Tuna Tugcu

Research output: Contribution to journalArticlepeer-review

Abstract

Molecular multiple-input-multiple-output (MIMO) techniques are proposed in the literature to improve the overall throughput of molecular communication via diffusion (MCvD) systems. Among these methods, molecular index modulation (molecular-IM) schemes are recently introduced as novel molecular MIMO approaches to provide significant improvements in terms of communication efficiency. However, despite molecular-IM's strong combating capability against inter-symbol interference (ISI) and inter-link interference (ILI), they are still prone to them due to the characteristics of a molecular MIMO MCvD channel. With the goal of further mitigating ISI and ILI, this letter introduces memory-assisted, linear time and space-time equalization methods for molecular-IM schemes. It is shown that the proposed equalization methods yield significant improvements in error performance while retaining low decoding complexity due to the linear combining.

Original languageEnglish (US)
Article number8957686
Pages (from-to)702-705
Number of pages4
JournalIEEE Wireless Communications Letters
Volume9
Issue number5
DOIs
StatePublished - May 2020
Externally publishedYes

Keywords

  • index modulation
  • Molecular communication
  • molecular MIMO
  • space-time equalization

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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