• DocumentCode
    1702833
  • Title

    On the zero forcing optimality for friendly jamming in MISO wiretap channels

  • Author

    Wolf, Anne ; Jorswieck, Eduard A.

  • Author_Institution
    Dept. of Electr. Eng. & Inf. Technol., Dresden Univ. of Technol., Dresden, Germany
  • fYear
    2010
  • Firstpage
    1
  • Lastpage
    5
  • Abstract
    We study beamforming strategies for a friendly jammer (or helper) in a MISO wiretap channel. We characterize the beamforming strategy for the maximization of the secrecy rate and analyze the optimality of zero forcing. We show that zero forcing is optimal up to a small constant for high SNR. For low SNR, we derive optimal beamforming strategies for transmitter and helper in terms of minimum Eb/N0 and wideband slope.
  • Keywords
    fading channels; jamming; transmitters; MISO wiretap channel; beamforming strategy; friendly jamming; quasi-static block flat fading MISO channel; secrecy rate maximization; transmitter; zero forcing optimality; Array signal processing; Interference; Receivers; Signal to noise ratio; Transmitters; Upper bound; Wideband;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Signal Processing Advances in Wireless Communications (SPAWC), 2010 IEEE Eleventh International Workshop on
  • Conference_Location
    Marrakech
  • ISSN
    1948-3244
  • Print_ISBN
    978-1-4244-6990-1
  • Electronic_ISBN
    1948-3244
  • Type

    conf

  • DOI
    10.1109/SPAWC.2010.5671002
  • Filename
    5671002
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1702833