Beamformer optimization for the full-duplex AF relay wiretap channels

Duckdong Hwang; Janghoon Yang; Eunchul Yoon; Hyoung Kyu Song; Sung Sik Nam

doi:10.1109/LWC.2018.2863290

Beamformer optimization for the full-duplex AF relay wiretap channels

Duckdong Hwang, Janghoon Yang, Eunchul Yoon, Hyoung Kyu Song, Sung Sik Nam

Division of Engineering and Science (Abington)

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

2 Scopus citations

Abstract

We consider optimal beamforming (BF) for the multiantenna full-duplex (FD) amplify-and-forward relay that maximizes the secrecy rate in the relay eavesdropper channel. We first show that zero forcing condition (ZFC) with no self-interference from the loop-back channel at the FD relay is the necessary condition for finding the optimal beamformer. Then, we provide an optimization method to locate the best pair among the ZFC beamformers. Through some simulations, we evaluate and compare the performances of the proposed optimal zero forcing BF scheme and a reference BF scheme.

Original language	English (US)
Article number	8425688
Pages (from-to)	129-132
Number of pages	4
Journal	IEEE Wireless Communications Letters
Volume	8
Issue number	1
DOIs	https://doi.org/10.1109/LWC.2018.2863290
State	Published - Feb 2019

All Science Journal Classification (ASJC) codes

Control and Systems Engineering
Electrical and Electronic Engineering

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10.1109/LWC.2018.2863290

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abstract = "We consider optimal beamforming (BF) for the multiantenna full-duplex (FD) amplify-and-forward relay that maximizes the secrecy rate in the relay eavesdropper channel. We first show that zero forcing condition (ZFC) with no self-interference from the loop-back channel at the FD relay is the necessary condition for finding the optimal beamformer. Then, we provide an optimization method to locate the best pair among the ZFC beamformers. Through some simulations, we evaluate and compare the performances of the proposed optimal zero forcing BF scheme and a reference BF scheme.",

author = "Duckdong Hwang and Janghoon Yang and Eunchul Yoon and Song, \{Hyoung Kyu\} and Nam, \{Sung Sik\}",

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AU - Nam, Sung Sik

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AB - We consider optimal beamforming (BF) for the multiantenna full-duplex (FD) amplify-and-forward relay that maximizes the secrecy rate in the relay eavesdropper channel. We first show that zero forcing condition (ZFC) with no self-interference from the loop-back channel at the FD relay is the necessary condition for finding the optimal beamformer. Then, we provide an optimization method to locate the best pair among the ZFC beamformers. Through some simulations, we evaluate and compare the performances of the proposed optimal zero forcing BF scheme and a reference BF scheme.

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Beamformer optimization for the full-duplex AF relay wiretap channels

Abstract

All Science Journal Classification (ASJC) codes

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