Interceptor complexity analysis for mixed BPSK–QPSK modulated frequency hopping spread spectrum systems

Jin Woong Park, Do Sik Yoo, Seong Jun Oh

Research output: Contribution to journalArticle


In this paper, we propose a method of mixing modulation schemes to make it very difficult to intercept information from frequency hopping signals and assess analytically the difficulty of information interception using the interceptor computational complexity as a metric. In particular, we consider, to illustrate the effectiveness of mixing modulation schemes for secure communications, a method of randomly mixing BPSK and QPSK modulations in frequency hopping systems and compare it with conventional frequency hopping systems using BPSK only or QPSK only modulation scheme by deriving simple to evaluate upper and lower bounds on the interceptor complexity.

Original languageEnglish
Article number101063
JournalPhysical Communication
Publication statusPublished - 2020 Jun



  • Frequency hopping
  • Interception complexity
  • Low probability interception
  • Military communication

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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