TY - GEN
T1 - The MISO Wiretap Channel with Noisy Main Channel Estimation in the High Power Regime
AU - Rezki, Zouheir
AU - Chaaban, Anas
AU - Alomair, Basel
AU - Alouini, Mohamed-Slim
N1 - KAUST Repository Item: Exported on 2020-10-01
PY - 2017/2/7
Y1 - 2017/2/7
N2 - We improve upon our previous upper bound on the secrecy capacity of the wiretap channel with multiple transmit antennas and single-antenna receivers, with noisy main channel state information (CSI) at the transmitter (CSI-T). Specifically, we show that if the main CSI error does not scale with the power budget at the transmitter P̅, then the secrecy capacity is )bounded above essentially by log log (P̅ yielding a secure degree of freedom (sdof) equal to zero. However, if the main CSI error scales as O(P̅-β), for β ∈ [0,1], then the sdof is equal to β.
AB - We improve upon our previous upper bound on the secrecy capacity of the wiretap channel with multiple transmit antennas and single-antenna receivers, with noisy main channel state information (CSI) at the transmitter (CSI-T). Specifically, we show that if the main CSI error does not scale with the power budget at the transmitter P̅, then the secrecy capacity is )bounded above essentially by log log (P̅ yielding a secure degree of freedom (sdof) equal to zero. However, if the main CSI error scales as O(P̅-β), for β ∈ [0,1], then the sdof is equal to β.
UR - http://hdl.handle.net/10754/623921
UR - http://ieeexplore.ieee.org/document/7842318/
UR - http://www.scopus.com/inward/record.url?scp=85015383673&partnerID=8YFLogxK
U2 - 10.1109/glocom.2016.7842318
DO - 10.1109/glocom.2016.7842318
M3 - Conference contribution
SN - 9781509013289
BT - 2016 IEEE Global Communications Conference (GLOBECOM)
PB - Institute of Electrical and Electronics Engineers (IEEE)
ER -