Working Paper Article Version 1 This version is not peer-reviewed

Synthesis of Directional Modulation Signal Using a Hybrid Optimization Algorithm

Version 1 : Received: 5 December 2019 / Approved: 6 December 2019 / Online: 6 December 2019 (11:29:09 CET)

How to cite: Liu, F.; Wang, L.; Xie, J.; Yang, X. Synthesis of Directional Modulation Signal Using a Hybrid Optimization Algorithm. Preprints 2019, 2019120081 Liu, F.; Wang, L.; Xie, J.; Yang, X. Synthesis of Directional Modulation Signal Using a Hybrid Optimization Algorithm. Preprints 2019, 2019120081

Abstract

Directional Modulation (DM) technique, as an emerging promising approach to secure wireless communications, has been attracting increasing attention for its unique characteristic in the past decade. The baseband signal is synthesized at the antenna level for maintaining the standard constellation format along the prescribed direction(s) while simultaneously distorting the signal constellations in other undesired directions. In this paper, we present a novel DM signal synthesis method based on phased array using a hybrid genetic algorithm (GA) and particle swarm optimization (PSO) algorithm, which takes advantages of both GA and PSO algorithm. Then, the bit error rate of the proposed method is analyzed and simulated. Simulation results are presented to verify that the proposed DM signal have a narrower information beam-width. Therefore, it can offer a better physical layer security (PLS) performance compared with the conventional directional modulation signal.

Subject Areas

DM; GA; PSO; PLS; hybrid algorithm

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