Filter Optimization Aided Interference Management with Improved Secrecy


Dartmann G., Luecken V., Cepheli O., Kurt G. K. , Ascheid G.

80th IEEE Vehicular Technology Conference (VTC Fall), Vancouver, Canada, 14 - 17 September 2014 identifier

  • Publication Type: Conference Paper / Full Text
  • City: Vancouver
  • Country: Canada

Abstract

This paper proposes a novel matched filter optimization based approach to improve secrecy in a communication among two legitimate users. The presented optimization scheme, named as QoS-based filter design, minimizes the stop-band attenuation and uses quality-of-service constraints on the legitimate receiver and an eavesdropper. The resulting problem is relaxed to a convex problem. The filter coefficients are optimal regarding the legitimate receiver's matched filter auto-correlation function, however, it results in a sub-optimal filter for the eavesdropper secrecy constraints. Therefore, an additional post-processing is developed to match the secrecy constraints.