Search Results for author: Gourab Ghatak

Found 8 papers, 0 papers with code

Fast Change Identification in Multi-Play Bandits and its Applications in Wireless Networks

no code implementations20 May 2022 Gourab Ghatak

In this regard, we study a novel multi-armed bandit (MAB) setting that mandates probing all the arms periodically while keeping track of the best current arm in a non-stationary environment.

Change Detection Edge-computing +1

Estimation of Bistatic Radar Detection Performance Under Discrete Clutter Conditions Using Stochastic Geometry

no code implementations24 Jan 2022 Shobha Sundar Ram, Gourab Ghatak

We propose a metric called the bistatic radar detection coverage probability to evaluate the detection performance of a bistatic radar under discrete clutter conditions.

Optimization of Network Throughput of Joint Radar Communication System Using Stochastic Geometry

no code implementations10 Jan 2022 Shobha Sundar Ram, Gourab Ghatak

Consequently, JRC parameters such as the time trade-off between the radar exploration and communication service tasks have direct implications on the network throughput.

Activity Recognition Indoor Localization +1

Kolmogorov-Smirnov Test-Based Actively-Adaptive Thompson Sampling for Non-Stationary Bandits

no code implementations30 May 2021 Gourab Ghatak, Hardhik Mohanty, Aniq Ur Rahman

In particular, for the two-armed bandit case, we derive bounds on the number of samples of the reward distribution to detect the change once it occurs.

Edge-computing Portfolio Optimization +1

Optimization of Radar Parameters for Maximum Detection Probability Under Generalized Discrete Clutter Conditions Using Stochastic Geometry

no code implementations29 Jan 2021 Shobha Sundar Ram, Gaurav Singh, Gourab Ghatak

Using this framework, we derive a metric called the radar detection coverage probability as a function of radar parameters such as transmitted power, system noise temperature and radar bandwidth; and clutter parameters such as clutter density and mean clutter cross-section.

A Change-Detection Based Thompson Sampling Framework for Non-Stationary Bandits

no code implementations6 Sep 2020 Gourab Ghatak

Then, we characterize the lower bound on the duration of the time-window for which the bandit framework must remain stationary for TS-CD to successfully detect a change when it occurs.

Change Detection Thompson Sampling

An Online Algorithm for Computation Offloading in Non-Stationary Environments

no code implementations22 Jun 2020 Aniq Ur Rahman, Gourab Ghatak, Antonio De Domenico

We consider the latency minimization problem in a task-offloading scenario, where multiple servers are available to the user equipment for outsourcing computational tasks.

online learning

Beamwidth Optimization and Resource Partitioning Scheme for Localization Assisted mm-wave Communications

no code implementations11 May 2020 Gourab Ghatak, Remun Koirala, Antonio De Domenico, Benoit Denis, Davide Dardari, Bernard Uguen, Marceau Coupechoux

We study a mm-wave wireless network deployed along the roads of an urban area, to support localization and communication services simultaneously for outdoor mobile users.

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