17 citations · 23 across the 5 of their papers we have counts for
5 papers
Improved Eigenvalue-based Spectrum Sensing via Sensor Signal Overlapping
Liping Du, Mihir Laghate, Chun-Hao Liu +1
Eigenvalue-based detectors are considered as an important method of spectrum sensing since they do not require the information about the primary user (PU) signal. In this paper we…
Robust Cooperative Spectrum Sensing Scheduling Optimization in Multi-Channel Dynamic Spectrum Access Networks
Chun-Hao Liu, Arash Azarfar, Jean-Francois Frigon +2
Dynamic spectrum access (DSA) enables secondary networks to find and efficiently exploit spectrum opportunities. A key factor to design a DSA network is the spectrum sensing algori…
Primary User Traffic Classification in Dynamic Spectrum Access Networks
Chun-Hao Liu, Przemysław Pawełczak, Danijela Cabric
This paper focuses on analytical studies of the primary user (PU) traffic classification problem. Observing that the gamma distribution can represent positively skewed data and exp…
Blind Estimation of Primary User Traffic Parameters Under Sensing Errors
Wesam Gabran, Przemysław Pawełczak, Chun-Hao Liu +1
In this work we investigate the bounds on the estimation accuracy of Primary User (PU) traffic parameters with exponentially distributed busy and idle times. We derive closed-form…
Primary User Traffic Estimation for Dynamic Spectrum Access
Wesam Gabran, Chun-Hao Liu, Przemysław Pawełczak +1
Accurate estimation of licensed channel Primary User's (PU) temporal statistics is important for Dynamic Spectrum Access (DSA) systems. With accurate estimation of the mean duty cy…