Title
Eigenvalue Based Relay Selection for XOR-Physical Layer Network Coding in Bi-Directional Wireless Relaying Networks
Abstract
This paper proposes relay selection techniques for XOR physical layer network coding with MMSE based non-linear precoding in MIMO bi-directional wireless relaying networks. The proposed selection techniques are derived on the di fferent assumption about characteristics of the MMSE based non-linear precoding in the wireless network. We show that the signal to noise power ratio (SNR) is dependent on the product of all the eigenvalues in the channels from the terminals to relays. This paper shows that the best selection techniques in all the proposed techniques is to select a group of the relays that maximizes the product. Therefore, the selection technique is called "product of all eigenvalues (PAE)" in this paper. The performance of the proposed relay selection techniques is evaluated in a MIMO bi-directional wireless relaying network where two terminals with 2 antennas exchange their information via relays. When the PAE is applied to select a group of the 2 relays out of the 10 relays where an antenna is placed, the PAE attains a gain of more than 13dB at the BER of 10(-3).
Year
DOI
Venue
2021
10.1587/transcom.2020EBP3183
IEICE TRANSACTIONS ON COMMUNICATIONS
Keywords
DocType
Volume
physical layer network coding, non-linear precoding, MIMO, signal to noise power ratio, eigenvalues
Journal
E104B
Issue
ISSN
Citations 
10
0916-8516
0
PageRank 
References 
Authors
0.34
0
3
Name
Order
Citations
PageRank
Satoshi Denno112.40
Kazuma Yamamoto201.01
Yafei Hou303.38