Paper Info
Title
Secure Transmission For Relay Wiretap Channels In The Presence Of Spatially Random Eavesdroppers
Abstract
We propose a secure transmission scheme for a relay wiretap channel, where a source communicates with a destination via a decode-and-forward relay in the presence of spatially random-distributed eavesdroppers. We assume that the source is equipped with multiple antennas, whereas the relay, the destination, and the eavesdroppers are equipped with a single antenna each. In the proposed scheme, in addition to information signals, the source transmits artificial noise signals in order to confuse the eavesdroppers. With the target of maximizing the secrecy throughput of the relay wiretap channel, we derive a closed-form expression for the transmission outage probability and an easy-to-compute expression for the secrecy outage probability. Using these expressions, we determine the optimal power allocation factor and wiretap code rates that guarantee the maximum secrecy throughput, while satisfying a secrecy outage probability constraint. Furthermore, we examine the impact of source antenna number on the secrecy throughput, showing that adding extra transmit antennas at the source brings about a significant increase in the secrecy throughput.
Year
DOI
Venue
2015
10.1109/GLOCOMW.2015.7414069
2015 IEEE GLOBECOM WORKSHOPS (GC WKSHPS)
Field
DocType
Volume
Secure transmission,Computer science,Secrecy,Signal-to-noise ratio,Computer network,Communication channel,Physical layer,Artificial noise,Throughput,Relay
Journal
abs/1509.07223
ISSN
Citations 
PageRank 
2166-0069
3
0.38
References 
Authors
26
4
Name
Order
Citations
PageRank
Chenxi Liu19912.86
Nan (Jonas) Yang2144876.04
Jinhong Yuan32966202.61
Robert A. Malaney440137.72