4 citations · 12 across the 27 of their papers we have counts for
5 papers · 1 filter
Performance Analysis of a Two-Tile Reconfigurable Intelligent Surface Assisted MIMO System
Prathapasinghe Dharmawansa, Saman Atapattu, Marco Di Renzo
We consider a two--tile reconfigurable intelligent surface (RIS) assisted wireless network with a two-antenna transmitter and receiver over Rayleigh fading. We show that the averag…
Eigenvalue Based Detection of a Signal in Colored Noise: Finite and Asymptotic Analyses
Lahiru D. Chamain, Prathapasinghe Dharmawansa, Saman Atapattu +1
Signal detection in colored noise with an unknown covariance matrix has a myriad of applications in diverse scientific/engineering fields. The test statistic is the largest general…
Detection of a Signal in Colored Noise: A Random Matrix Theory Based Analysis
Lahiru D. Chamain, Prathapasinghe Dharmawansa, Saman Atapattu +1
This paper investigates the classical statistical signal processing problem of detecting a signal in the presence of colored noise with an unknown covariance matrix. In particular,…
Locally Best Invariant Test for Multiple Primary User Spectrum Sensing
Lu Wei, Prathapasinghe Dharmawansa, Olav Tirkkonen
We consider multi-antenna cooperative spectrum sensing in cognitive radio networks, when there may be multiple primary users. A noise-uncertainty-free detector that is optimal in t…
On the Exact Distribution of the Scaled Largest Eigenvalue
Lu Wei, Olav Tirkkonen, Prathapasinghe Dharmawansa +1
In this paper we study the distribution of the scaled largest eigenvalue of complexWishart matrices, which has diverse applications both in statistics and wireless communications.…