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SCIENTIA SINICA Informationis, Volume 47, Issue 9: 1209-1225(2017) https://doi.org/10.1360/N112016-00280

Directional modulation-based secure wireless transmission: basic principles, key techniques, and applications

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  • ReceivedDec 9, 2016
  • AcceptedMay 17, 2017
  • PublishedAug 23, 2017

Abstract

Directional modulation (DM), as an advanced physical layer security wireless transmission, will further improve the performance of the communication system by combining beamforming and artificial noise (AN). Unlike traditional beamforming systems, a DM system can transmit confidential messages along the predefined desired direction to enhance the safety in the desired direction and simultaneously disrupt the signal constellation pattern at undesired receivers. In this paper, the concept of DM, its principle, and application characteristics are described. Furthermore, implementation schemes and performance matrices of DM are systematically expounded. Finally, the research works on DM technology are summarized, and the future research potential trends are analyzed, along with several technical challenges. To solve the problem of angle-dependent transmit beam-pattern encountered in traditional DM, we propose a new secure wireless transmission concept named precision wireless transmission that combines DM and frequency diversity. This transmission technology can send confidential messages to a small neighborhood of the given arbitrary angle and range dimension without leakage to other regions.


Funded by

国家自然科学基金(61271230,61472190,61501238)

中央高校基本科研业务费专项资金(30916011205)

电子科技集团公司第二十二研究所电波环境特性及模块化技术国防科技重点实验室开放课题(201500013)

东南大学移动通信国家重点实验室开放课题(2013D02)


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