Effects of channel correlation on outage secrecy capacity

Jinxiao Zhu, Xiaohong Jiang, Osamu Takahashi, Norio Shiratori

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

We consider the transmission of confidential data over a wireless quasi-static fading wiretap channel when the main and eavesdropper channels are correlated there. Under the assumption that before transmission the transmitter only knows the channel state information (CSI) of the main channel but has no idea about the CSI of the eavesdropper channel, we derive the asymptotic outage probability and also asymptotic outage secrecy capacity as the transmission power goes to infinity, which cover the corresponding results when the main and eavesdropper channels are independent as special cases. Based on the theoretical results, the effects of channel correlation on the asymptotic outage probability and asymptotic outage secrecy capacity are explored. Remarkably, our results reveal that the correlation between the main and eavesdropper channels has a significant impact on both the asymptotic outage probability and asymptotic outage secrecy capacity and that such an impact can be helpful or harmful depending on the relative channel condition between the main and eavesdropper channels.

Original languageEnglish
Pages (from-to)640-649
Number of pages10
JournalJournal of Information Processing
Volume21
Issue number4
DOIs
Publication statusPublished - 2013

Keywords

  • Channel correlation
  • Channel state information
  • Outage secrecy capacity
  • Physical layer security
  • Rayleigh fading channel

ASJC Scopus subject areas

  • Computer Science(all)

Fingerprint Dive into the research topics of 'Effects of channel correlation on outage secrecy capacity'. Together they form a unique fingerprint.

  • Cite this