Directional Modulation Far-field Pattern Separation Synthesis Approach

Yuan Ding, Vincent F. Fusco

Research output: Contribution to journalArticlepeer-review

36 Citations (Scopus)
193 Downloads (Pure)

Abstract

In this study, a far-field power pattern separation approach is proposed for the synthesis of directional modulation (DM) transmitter arrays. Separation into information patterns and interference patterns is enabled by far-field pattern null steering. Compared with other DM synthesis methods, for example, bit error rate-driven DM optimisation and orthogonal vector injection, the approach developed in this study facilitates manipulation of artificial interference spatial distributions. With such capability more interference power can be projected into those spatial directions most vulnerable to eavesdropping, that is, the information side lobes. In such a fashion, information leaked through radiation side lobes can be effectively mitigated in a transmitter power efficient manner. Furthermore, for the first time, the authors demonstrate how multi-beam DM transmitters can be synthesised via this approach.
Original languageEnglish
Pages (from-to)41-48
JournalIET Microwaves, Antennas and Propagation
Volume9
Issue number1
Early online date17 Sep 2014
DOIs
Publication statusPublished - 09 Jan 2015

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