Title :
Effects of Multiple Antennas and Imperfect Channel Knowledge on Secrecy Multiuser Diversity
Author :
Bang, Inkyu ; Kim, Su Min ; Sung, Dan Keun
Abstract :
In this letter, we investigate the effects of multiple antennas at a legitimate receiver and imperfect channel knowledge on secure user-scaling law in uplink multiuser wiretap networks. We generalize the conventional analysis of the secure user-scaling law for a single antenna system with perfect channel knowledge by considering multiple antennas at the receiver and the channel estimation errors.
Keywords :
Approximation methods; Channel estimation; Multiuser detection; Receiving antennas; Signal to noise ratio; Physical-layer security; imperfect channel knowledge; multiuser diversity; secrecy capacity; user-scaling law; userscaling law;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2015.2449316
