#### Filter Results:

- Full text PDF available (10)

#### Publication Year

2011

2017

- This year (1)
- Last five years (12)

#### Publication Type

#### Co-author

#### Publication Venue

#### Key Phrases

Learn More

- Jithin Kazuthuveettil Sreedharan, Vinod Sharma
- ArXiv
- 2013

We consider nonparametric or universal sequential hypothesis testing problem when the distribution under the null hypothesis is fully known but the alternate hypothesis corresponds to some other unknown distribution. These algorithms are primarily motivated from spectrum sensing in Cognitive Radios and intruder detection in wireless sensor networks. We use… (More)

- Jithin Kazuthuveettil Sreedharan, Vinod Sharma
- Signal Processing
- 2015

—This paper considers cooperative spectrum sensing algorithms for Cognitive Radios which focus on reducing the number of samples to make a reliable detection. We develop an energy efficient detector with low detection delay using decentralized sequential hypothesis testing. Our algorithm at the Cognitive Radios employs an asynchronous transmission scheme… (More)

- Jithin Kazuthuveettil Sreedharan, Vinod Sharma
- GLOBECOM
- 2012

—We consider nonparametric sequential hypothesis testing when the distribution under null hypothesis is fully known and the alternate hypothesis corresponds to some other unknown distribution. We use easily implementable universal lossless source codes to propose simple algorithms for such a setup. These algorithms are motivated from spectrum sensing… (More)

- Jithin Kazuthuveettil Sreedharan, Vinod Sharma
- 2011 IEEE Wireless Communications and Networking…
- 2011

This paper considers cooperative spectrum sensing in Cognitive Radios. In our previous work we have developed DualSPRT, a distributed algorithm for cooperative spectrum sensing using Sequential Probability Ratio Test (SPRT) at the Cognitive Radios as well as at the fusion center. This algorithm works well, but is not optimal. In this paper we propose an… (More)

- Jithin Kazuthuveettil Sreedharan, Vinod Sharma
- ArXiv
- 2012

- Jithin Kazuthuveettil Sreedharan, Vinod Sharma
- 2013 Information Theory and Applications Workshop…
- 2013

We consider nonparametric or universal sequential hypothesis testing when the distribution under the null hypothesis is fully known but the alternate hypothesis corresponds to some other unknown distribution. These algorithms are primarily motivated from spectrum sensing in Cognitive Radios and intruder detection in wireless sensor networks. We use easily… (More)

We explore the dependence structure in the sampled sequence of large networks. We consider randomized algorithms to sample the nodes and study extremal properties in any associated stationary sequence of characteristics of interest like node degrees, number of followers or income of the nodes in Online Social Networks etc, which satisfy two mixing… (More)

Example: What proportion of a population supports a given political party? How young a given social network is? Example: What proportion of a population supports a given political party? How young a given social network is?

—Many networks in the real world are dynamic in nature: nodes enter, exit, and make and break connections with one another as time passes. Several random graph models of these networks are such that nodes have well-defined arrival times. It is natural to ask if, for a given random graph model, we can recover the arrival order of nodes, given information… (More)