Secure Wireless Key Establishment Using Retrodirective Array

Yuan Ding, Junqing Zhang, Vincent Fusco

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)
189 Downloads (Pure)


In this paper a new method of establishing secret keys for wireless communications is proposed. A retrodirective array (RDA) that is configured to receive and re-transmit at different frequencies is utilized as a relay node. Specifically the analogue RDA is able to respond in ‘real-time’, reducing the required number of time slots for key establishment to two, compared with at least three in previous relay key generation schemes. More importantly, in the proposed architecture equivalent reciprocal wireless channels between legitimate keying nodes can be randomly updated within one channel coherence time period, leading to greatly increased key generation rates (KGRs) in slow fading environment. The secrecy performance of this RDA assisted key generation system is evaluated and it is shown that it outperforms previous relay key generation systems.
Original languageEnglish
Title of host publicationProceedings of Globecom Workshop 2016: 4th Workshop on Trusted Communications with Physical Layer Security
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages6
ISBN (Electronic)978-1-5090-2482-7
Publication statusPublished - 09 Feb 2017
EventGlobecom Workshop 2016: 4th Workshop on Trusted Communications with Physical Layer Security - The Washington Hilton, Washington, DC, United States
Duration: 04 Dec 201608 Dec 2016


WorkshopGlobecom Workshop 2016
CountryUnited States
CityWashington, DC
Internet address


  • Wireless Communication Systems
  • retrodirective array
  • key generation

Fingerprint Dive into the research topics of 'Secure Wireless Key Establishment Using Retrodirective Array'. Together they form a unique fingerprint.

Cite this