The MISO Wiretap Channel with Noisy Main Channel Estimation in the High Power Regime
KAUST DepartmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Electrical Engineering Program
Online Publication Date2017-02-07
Print Publication Date2016-12
Permanent link to this recordhttp://hdl.handle.net/10754/623921
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AbstractWe 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.
CitationRezki Z, Chaaban A, Alomair B, Alouini M-S (2016) The MISO Wiretap Channel with Noisy Main Channel Estimation in the High Power Regime. 2016 IEEE Global Communications Conference (GLOBECOM). Available: http://dx.doi.org/10.1109/glocom.2016.7842318.