Radiocommunication technologies for stealth and anti-jamming

Authors:

  • Gunnar Eriksson
  • Sara Linder
  • Ulrika Uppman

Publish date: 2017-02-15

Report number: FOI-R--4389--SE

Pages: 44

Written in: Swedish

Keywords:

  • radio communications
  • jamming
  • stealth

Abstract

This report is the result of a literature study identifying relevant research in the area of stealth and anti-jam communications. The aim is to explore and provide insight into a research area without much attention for some years, when focus was on achieving higher capacity. With the changing international situation, however, especially antijam communications are again highly interesting. At the same time, new technologies have emerged and therefore perhaps new opportunities for stealth and anti-jam communications. The goal of the report is to present an overview of the new research in the area and references to articles for more thorough studies. Different technologies are described, such as spread spectrum techniques including frequency hopping and direct sequence spread spectrum. Antenna techniques such as multiple antenna techniques and cooperative techniques, including relaying and distributed beamforming are treated. Radio networks and protocols are described together with cooperative broadcast. Adaptive systems, anti-fragile communication, cognitive radio and jamming are described in addition to game theory. Physical layer security as an alternative to encryption is described and so is covert wireless communication. Different aspects of anti-jam and stealth communication have been analyzed the last couple of years. Despite this, there are some areas where analyzes have been hard to find, such as stealth analyses of wireless networks. For cooperative techniques, analyses of military aspects such as stealth or jamming are rare. Other areas, i.e. anti-fragile systems and physical layer security, are theoretical and work remains for practical implementations.