A Distributed Implementation Algorithm for Physical Layer Security Based on Untrusted Relay Cooperation and Artificial Noise

In this letter, we consider a cooperation system with multiple untrusted relays (URs). To keep the transmitted information confidential, we obtain joint channel characteristics (JCCs) through combining the channels from the source to the destination. Then, in the null space of the JCCs, jammers cons...

Full description

Saved in:
Bibliographic Details
Published in:ETRI journal 2014, 36(1), , pp.183-186
Main Authors: Li, Xiangyu, Wang, Xueming, Xu, Xiangyang, Jin, Liang
Format: Article
Language:English
Subjects:
artificial noise
joint channel characteristics
Physical layer security
secrecy rate
untrusted relay
전자/정보통신공학
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this letter, we consider a cooperation system with multiple untrusted relays (URs). To keep the transmitted information confidential, we obtain joint channel characteristics (JCCs) through combining the channels from the source to the destination. Then, in the null space of the JCCs, jammers construct artificial noise to confuse URs when the source node broadcasts its data. Through a distributed implementation algorithm, the weight of each node can be obtained from its own channel state information. Simulation results show that high‐level security of the system can be achieved when internal and external eavesdroppers coexist.
ISSN:1225-6463
2233-7326
DOI:10.4218/etrij.14.0213.0090