Large-System Analysis of MIMO Wire-Tap Channels with Randomly Located Eavesdroppers
2013 (English)In: Proceedings of the Tenth International Symposium on Wireless Communication Systems (ISWCS 2013), VDE Verlag GmbH, 2013, 380-384 p.Conference paper (Refereed)
Wireless security has become a subject of growinginterest in wireless communications due to the broadcast natureof wireless channels. In the present paper, we consider a multiantennawire-tap channel with randomly distributed eavesdroppers.In the fast fading environment, the overall performance ofsuch channel is characterized by the ergodic secrecy capacity,which, in general, cannot be characterized explicitly. Nevertheless,based on the assumption that the numbers of antennasat legitimate terminals and the number of eavesdroppers growlarge without bound, we derive a deterministic approximation forthe achievable ergodic secrecy rate. The obtained large-systemapproximation matches well with the actual simulated secrecyrates, revealing some interesting behavior of the secrecy rates inthe given scenario.
Place, publisher, year, edition, pages
VDE Verlag GmbH, 2013. 380-384 p.
IdentifiersURN: urn:nbn:se:kth:diva-134205ScopusID: 2-s2.0-84903143770ISBN: 978-3-8007-3529-7OAI: oai:DiVA.org:kth-134205DiVA: diva2:665346
Tenth International Symposium on Wireless Communication Systems (ISWCS 2013); Ilmenau, Germany, 27-30 August 2013
FunderSwedish Research Council
QC 201401312013-11-192013-11-192014-01-31Bibliographically approved