Open AccessSliding window Dixon's tests for malicious users’ suppression in a cooperative spectrum sensing system
Author(s) -
Shrivastava Shivanshu,
Rajesh Alentattil,
Bora Prabin Kumar
Publication year - 2014
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.2013.0609
Subject(s) - sliding window protocol , computer science , window (computing) , spectrum (functional analysis) , computer security , real time computing , telecommunications , physics , world wide web , quantum mechanics
The Dixon's outlier detection scheme has recently been applied to suppress a malicious secondary user (SU) in a centralised fusion‐based cognitive radio cooperative spectrum sensing system. This study proposes to apply the Dixon's test on the smaller overlapping groups of SUs’ energy data, thereby increasing the detection performance particularly for multiple malicious users (MUs). The test is applied for each sample of the energy data. Simulation results demonstrate that the proposed methods are efficient in suppressing single and multiple MUs.