TY - JOUR
T1 - Location verification systems based on received signal strength with unknown transmit power
AU - Yan, Shihao
AU - Peters, Gareth W.
AU - Nevat, Ido
AU - Malaney, Robert
N1 - Publisher Copyright:
© 1997-2012 IEEE.
PY - 2018/3
Y1 - 2018/3
N2 - In the context of location verification systems (LVSs), this letter proves that the knowledge of a legitimate user's transmit power has no effect on the optimal performance of a received signal strength (RSS)-based LVS. Specifically, we prove that the detection performance of a generalized likelihood ratio test (GLRT), where the unknown transmit power is estimated, is identical to that of a differential likelihood ratio test (D-LRT). Our analysis also proves the asymptotic optimality of D-LRT for an RSS-based LVS with unknown transmit power. These results are important for real-world deployments of LVSs, since D-LRT incurs a significantly lower implementation cost relative to GLRT.
AB - In the context of location verification systems (LVSs), this letter proves that the knowledge of a legitimate user's transmit power has no effect on the optimal performance of a received signal strength (RSS)-based LVS. Specifically, we prove that the detection performance of a generalized likelihood ratio test (GLRT), where the unknown transmit power is estimated, is identical to that of a differential likelihood ratio test (D-LRT). Our analysis also proves the asymptotic optimality of D-LRT for an RSS-based LVS with unknown transmit power. These results are important for real-world deployments of LVSs, since D-LRT incurs a significantly lower implementation cost relative to GLRT.
KW - Physical layer security
KW - generalized likelihood ratio test
KW - location verification
KW - received signal strength
UR - http://www.scopus.com/inward/record.url?scp=85039765452&partnerID=8YFLogxK
U2 - 10.1109/LCOMM.2017.2787129
DO - 10.1109/LCOMM.2017.2787129
M3 - Article
SN - 1089-7798
VL - 22
SP - 650
EP - 653
JO - IEEE Communications Letters
JF - IEEE Communications Letters
IS - 3
ER -