Open AccessInterference detection in slow frequency‐hopped quadrature phase‐shift‐keying systems over fading channels
Author(s) -
Aung Aye,
Teh Kah Chan,
Li Kwok Hung
Publication year - 2013
Publication title -
iet communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.355
H-Index - 62
eISSN - 1751-8636
pISSN - 1751-8628
DOI - 10.1049/iet-com.2012.0642
Subject(s) - interference (communication) , phase shift keying , computer science , algorithm , quadrature (astronomy) , fading , electronic engineering , co channel interference , frequency shift keying , keying , spread spectrum , adjacent channel interference , telecommunications , mathematics , bit error rate , channel (broadcasting) , engineering , decoding methods , demodulation
In this study, the authors present an algorithm to detect unknown interference in slow frequency‐hopped quadrature phase‐shift‐keying systems. Both partial‐band noise interference and multitone interference are considered. The algorithm is developed based on the correlator outputs over one hop. A suitable threshold level is derived for detection. The authors formulate the analytical expressions for probability of detection for both interference models. Numerical results reveal that the proposed algorithm can detect both interference types even at low interference power.