Apoorv

Apoorv

Graduate Student

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publications

Modeling data backups as a batch-service queue with vacations and exhaustive policy

Published in Computer Communications, 2018

Data is increasing being stored in clouds due to the benefits of this infrastructure. In this paper we study a general queueing model of this process and numerically compute the performance measures which characterize the performance of such operations. In particular, we are able to analyze the resource usage of performing these operations as well as the Quality of Service provided to the data packets.

Recommended citation: Apoorv Saxena, Dieter Claeys, Herwig Bruneel, Bo Zhang, Joris Walraevens (2018). "Modeling data backups as a batch-service queue with vacations and exhaustive policy." Computer Communications. 128(46-59). https://doi.org/10.1016/j.comcom.2018.07.014

Analysis of the Age of data in data backup systems

Published in Computer Networks, 2019

In this paper we focus on the analysis of the waiting time of data packets to receive backup service and the frequency of backup operations. In particular, we compute the generating function of the waiting time and compute the tail probabilities using dominant singularity analysis.

Recommended citation: Apoorv Saxena, Dieter Claeys, Herwig Bruneel, Joris Walraevens (2019). "Analysis of the Age of data in data backup systems." Computer Networks. https://doi.org/10.1016/j.comnet.2019.05.020

Cloud data storage: A Queueing Model with thresholds

Published in Annals of Operations Research, 2019

Storage processes are designed in a way to guarantee a high quality of service to its users. The service quality levels are ensured by performing the operations at an optimal frequency. Moreover, long backup off periods and high backlogs are also avoided by using trigger mechanisms. In this paper, we model these trigger mechanisms using restarting thresholds and study the underlying queueing model.

Recommended citation: Apoorv Saxena, Dieter Claeys, Bo Zhang, Joris Walraevens. (2019). "Cloud data storage: A queueing model with thresholds." Annals of Operations Research. https://doi.org/10.1007/s10479-019-03279-y

Efficient delivery of 360 videos on VR headsets

Published in (Under Review), 2020

In this paper we model the streaming of $360^0$ videos on a VR headset using a wireless channel. We model both the intermittent behavior of the wireless channel as well as the prediction of the head position of the user. The MDP based streaming algorithm we present, guarantees a high Quality of Experience (QoE) for the headset users while ensuring that the resource usage is minimised.

Recommended citation: Apoorv Saxena, Shishir Subramanyam, Pablo Cesar, Rob van der Mei, Berg, J.L. (Hans) van den (2020). "Efficient delivery of 360 videos on VR headsets." Under Review.

Inventory management of spare parts under condition based maintenance

Published in (Under Review), 2020

Maintenance scheduling and spare part management using Markov models in Industry 4.0

Recommended citation: Dendauw, Pieterjan and Saxena, Apoorv and Claeys, Dieter and Fiems, Dieter. "Inventory management of spare parts under condition based maintenance." Under Review.

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