Channel Estimation for Residual Self-Interference in Full-Duplex Amplify-And Two-Way Relays

Loading...
Thumbnail Image

Date

2017

Authors

Li, Xiaofeng
Tepedelenlioglu, Cihan
Şenol, Habib

Journal Title

Journal ISSN

Volume Title

Publisher

IEEE-INST Electrical Electronics Engineers Inc

Open Access Color

OpenAIRE Downloads

OpenAIRE Views

Research Projects

Organizational Units

Journal Issue

Abstract

Training schemes for full duplex two-way relays are investigated. We propose a novel one-block training scheme with a maximum likelihood estimator to estimate the channels between the nodes as well as the residual self-interference (RSI) channel simultaneously. A quasi-Newton algorithm is used to solve the estimator. As a baseline a multi-block training scheme is also considered. The Cramer-Rao bounds of the one-block and multi-block training schemes are derived. By using the Szego's theorem about Toeplitz matrices we analyze how the channel parameters and transmit powers affect the Fisher information. We show analytically that exploiting the structure arising from the RSI channel increases its Fisher information. Numerical results show the benefits of estimating the RSI channel.

Description

Keywords

Channel estimation, Residual self-interference, Ffull-duplex relay, Asymptotic Toeplitz matrix, Two-way relay

Turkish CoHE Thesis Center URL

Fields of Science

Citation

35

WoS Q

Q1

Scopus Q

Q1

Source

Volume

16

Issue

8

Start Page

4970

End Page

4983