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

Hyunjong Na; Chungyong Lee

doi:10.1007/s11277-019-06779-z

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

Hyunjong Na, Chungyong Lee

Department of Electrical and Electronic Engineering

Research output: Contribution to journal › Article › peer-review

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 language	English
Pages (from-to)	1157-1167
Number of pages	11
Journal	Wireless Personal Communications
Volume	110
Issue number	3
DOIs	https://doi.org/10.1007/s11277-019-06779-z
Publication status	Published - 2020 Feb 1

Bibliographical note

Publisher Copyright:
© 2019, The Author(s).

All Science Journal Classification (ASJC) codes

Computer Science Applications
Electrical and Electronic Engineering

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

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