Noise-enhanced encryption for physical layer security in an OFDM radio

D. Reilly*, G. S. Kanter

*Corresponding author for this work

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

35 Scopus citations


We adapt a physical-layer modulation scheme previously used for enhancing security in the optical domain to an OFDM radio link. The method relies on manipulating the signal constellation according to a cryptographic pseudorandom number generator and adding a small amount of truly random noise at the transmitter. We test the ultrasecure format by generating modified 802.11a packets offline and transmitting them over-the-air using a radio board designed for software defined radio applications. Our initial test system uses an underlying QPSK data format with a 12Mb/s burst-mode data rate. No performance penalty was observed by adding the noise-enhanced encryption function.

Original languageEnglish (US)
Title of host publicationRWS 2009 IEEE Radio and Wireless Symposium, Proceedings
Number of pages4
StatePublished - Jul 21 2009
Event2009 IEEE Radio and Wireless Symposium, RWS 2009 - San Diego, CA, United States
Duration: Jan 18 2008Jan 22 2008


Other2009 IEEE Radio and Wireless Symposium, RWS 2009
Country/TerritoryUnited States
CitySan Diego, CA


  • Communication system security
  • Military communication
  • Packet radio
  • Pseudonoise coded communications
  • Radio communications

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Hardware and Architecture
  • Electrical and Electronic Engineering


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