A Self Interference Nulling Filter Using Effective Channel Information for Full Duplex Systems

Hyunjong Na, Chungyong Lee

Research output: Contribution to journalArticle

Abstract

We propose a spatial domain interference cancelation scheme for full duplex bi-directional communication systems. Although the conventional pre-processing filters, such as null space projection and minimum mean square error (MMSE), can eliminate self interference, they require the spatial dimensions more than the number of receive antennas. However, proposed scheme requires only one spatial dimension regardless of the number of receive antennas, which enables more efficient antenna allocation. Simulation results show that proposed scheme obtains higher achievable rate than the half duplex system and the MMSE filter.

Original languageEnglish
JournalWireless Personal Communications
DOIs
Publication statusAccepted/In press - 2019 Jan 1

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Interference suppression
Antennas
Mean square error
Communication systems
Processing

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Electrical and Electronic Engineering

Cite this

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abstract = "We propose a spatial domain interference cancelation scheme for full duplex bi-directional communication systems. Although the conventional pre-processing filters, such as null space projection and minimum mean square error (MMSE), can eliminate self interference, they require the spatial dimensions more than the number of receive antennas. However, proposed scheme requires only one spatial dimension regardless of the number of receive antennas, which enables more efficient antenna allocation. Simulation results show that proposed scheme obtains higher achievable rate than the half duplex system and the MMSE filter.",
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