Title :
On the Secrecy Enhancement With Low-Complexity Large-Scale Transmit Selection in MIMO Generalized Composite Fading
Author :
Hessien, Salah ; Al-Qahtani, Fawaz S. ; Radaydeh, Redha M. ; Caijun Zhong ; Alnuweiri, Hussein
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., Doha, Qatar
Abstract :
This letter proposes a low-complexity antenna selection scheme based on large-scale fading to enhance the secrecy performance in independent and non-identical generalized-K fading channels. New analytical results for the secrecy outage probability and the probability of non-zero secrecy capacity are derived when the receiving terminals employ the maximum ratio combining scheme. In addition, simple and insightful approximations are obtained for the secrecy outage probability in the high signal to noise ratio regime, which shed light on the impact of key system parameters on the secrecy performance. Simulation results are provided to validate the analytical expressions.
Keywords :
MIMO communication; channel capacity; diversity reception; fading channels; probability; telecommunication security; transmitting antennas; MIMO generalized composite fading; generalized-K fading channels; maximum ratio combining scheme; non-zero secrecy capacity probability; secrecy enhancement; secrecy outage probability; signal to noise ratio regime; transmit antenna selection scheme; Capacity planning; Fading; MIMO; Receiving antennas; Shape; Signal to noise ratio; Transmitting antennas; MIMO channels; Physical layer security; composite fading; large-scale TAS; largescale TAS; small-scale receive MRC;
Journal_Title :
Wireless Communications Letters, IEEE
DOI :
10.1109/LWC.2015.2432154
