TY - GEN
T1 - Power Allocation and Outage Analysis for Secure MISO Networks with an Unknown Eavesdropper
AU - Jia, Shaobo
AU - Zhang, Di
AU - Mumtaz, Shahid
AU - Rodrigues, Joel J.P.C.
N1 - Publisher Copyright:
© 2020 IEEE.
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2020/12
Y1 - 2020/12
N2 - This paper investigates power allocation problem for secure multiple-input single-output transmission with artificial noise (AN). With an unknown eavesdropper, we propose an optimal adaptive power allocation scheme, which adaptively adjust the power allocation factor (PAF) according to the instantaneous channel state information of the legitimate channel. On this basis, we derive a closed-form expression for the optimal PAF aiming to minimize the secrecy outage probability (SOP). A suboptimal fixed power allocation scheme is also proposed to reduce system complexity. Moreover, exact closed-form expressions of SOP for both schemes are also obtained.
AB - This paper investigates power allocation problem for secure multiple-input single-output transmission with artificial noise (AN). With an unknown eavesdropper, we propose an optimal adaptive power allocation scheme, which adaptively adjust the power allocation factor (PAF) according to the instantaneous channel state information of the legitimate channel. On this basis, we derive a closed-form expression for the optimal PAF aiming to minimize the secrecy outage probability (SOP). A suboptimal fixed power allocation scheme is also proposed to reduce system complexity. Moreover, exact closed-form expressions of SOP for both schemes are also obtained.
KW - artificial noise
KW - Physical layer security
KW - power allocation
KW - secrecy outage probability
UR - http://www.scopus.com/inward/record.url?scp=85101243773&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85101243773&partnerID=8YFLogxK
U2 - 10.1109/GLOBECOM42002.2020.9348097
DO - 10.1109/GLOBECOM42002.2020.9348097
M3 - Conference contribution
AN - SCOPUS:85101243773
T3 - 2020 IEEE Global Communications Conference, GLOBECOM 2020 - Proceedings
BT - 2020 IEEE Global Communications Conference, GLOBECOM 2020 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2020 IEEE Global Communications Conference, GLOBECOM 2020
Y2 - 7 December 2020 through 11 December 2020
ER -