106 citations · 310 across the 82 of their papers we have counts for
10 papers · 1 filter
EVM analysis of an Interference Limited SIMO-SC System With Independent and Correlated Channels
Sudharsan Parthasarathy, Suman Kumar, Sheetal Kalyani
In this paper, we derive the error vector magnitude (EVM) in a selection combining (SC) system experiencing co-channel interference, for arbitrary number of antennas and interferer…
High SNR Consistent Compressive Sensing Without Signal and Noise Statistics
Sreejith Kallummil, Sheetal Kalyani
Recovering the support of sparse vectors in underdetermined linear regression models, \textit{aka}, compressive sensing is important in many signal processing applications. High SN…
Noise Statistics Oblivious GARD For Robust Regression With Sparse Outliers
Sreejith Kallummil, Sheetal Kalyani
Linear regression models contaminated by Gaussian noise (inlier) and possibly unbounded sparse outliers are common in many signal processing applications. Sparse recovery inspired…
Structured and Unstructured Outlier Identification for Robust PCA: A Non iterative, Parameter free Algorithm
Vishnu Menon, Sheetal Kalyani
Robust PCA, the problem of PCA in the presence of outliers has been extensively investigated in the last few years. Here we focus on Robust PCA in the outlier model where each colu…
Signal and Noise Statistics Oblivious Orthogonal Matching Pursuit
Sreejith Kallummil, Sheetal Kalyani
Orthogonal matching pursuit (OMP) is a widely used algorithm for recovering sparse high dimensional vectors in linear regression models. The optimal performance of OMP requires \te…
Asymptotic maximum order statistic for SIR in shadowed fading
Athira Subhash, Muralikrishnan Srinivasan, Sheetal Kalyani
Using tools from extreme value theory (EVT), it is proved that, when the user signal and the interferer signals undergo independent and non-identically distributed (i.n.i.d.) …
Analysis of Outage Probability of MRC with co-channel interference
Muralikrishnan Srinivasan, Sheetal Kalyani
Approximate outage probability expressions are derived for systems employing maximum ratio combining, when both the desired signal and the interfering signals are subjected to $η-μ…
Residual Ratio Thresholding for Model Order Selection
Sreejith Kallummil, Sheetal Kalyani
Model order selection (MOS) in linear regression models is a widely studied problem in signal processing. Techniques based on information theoretic criteria (ITC) are algorithms of…
Fast, Parameter free Outlier Identification for Robust PCA
Vishnu Menon, Sheetal Kalyani
Robust PCA, the problem of PCA in the presence of outliers has been extensively investigated in the last few years. Here we focus on Robust PCA in the column sparse outlier model.…
A Centralized Multi-stage Non-parametric Learning Algorithm for Opportunistic Spectrum Access
Thulasi Tholeti, Vishnu Raj, Sheetal Kalyani
Owing to the ever-increasing demand in wireless spectrum, Cognitive Radio (CR) was introduced as a technique to attain high spectral efficiency. As the number of secondary users (S…