Secure Beamforming Design for Physical Layer Network Coding Based MIMO Two-Way Relaying

In this letter, we propose a secure beamforming scheme for physical layer network coding (PNC)-based multiple-input multiple-output (MIMO) two-way relaying system. The relay node performs PNC mapping. An eavesdropper is attempting to intercept the user information. The channel state information (CSI...

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Bibliographic Details
Published in:IEEE communications letters Vol. 18; no. 7; pp. 1270 - 1273
Main Authors: Jayasinghe, Keeth, Jayasinghe, Praneeth, Rajatheva, Nandana, Latva-Aho, Matti
Format: Journal Article
Language:English
Published: New York, NY IEEE 01.07.2014
Institute of Electrical and Electronics Engineers
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:
Applied sciences
Array signal processing
Detection, estimation, filtering, equalization, prediction
Exact sciences and technology
Information, signal and communications theory
Network coding
Optimization
Physical layer
Relays
Signal and communications theory
Signal to noise ratio
Signal, noise
Switching and signalling
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Transmission and modulation (techniques and equipments)
Vectors
physical layer network coding
Multiple-input multiple-output
physical layer security
MIMO system
Relaying
Packet switching
Parameter estimation
Relay
Error estimation
Mapping
Numerical method
Algorithm
Beam forming
Optimization
Channel estimation
Signal processing
Network coding
Safety
ISSN:1089-7798, 1558-2558
Online Access:Get full text
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Description
Summary:In this letter, we propose a secure beamforming scheme for physical layer network coding (PNC)-based multiple-input multiple-output (MIMO) two-way relaying system. The relay node performs PNC mapping. An eavesdropper is attempting to intercept the user information. The channel state information (CSI) of the user-to-eavesdropper channel is imperfect at the user nodes. A robust optimization problem is formulated to design beamforming vectors at the user nodes and relay. The problem is non-convex, and an algorithm is proposed to solve that. In the numerical analysis, we discuss the convergence of the proposed algorithm and the impact of the CSI error on the performance.
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ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2014.2325861