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Performance analysis of DRX mechanism using batch arrival vacation queueing system with N-policy in LTE-A networks

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Abstract

Power saving and Quality of Service (QoS) are the two significant aspects of Long Term Evolution-Advanced (LTE-A) networks. DRX (“Discontinuous Reception”) is a mechanism, commonly exercised to enhance the power saving competency of a User Equipment (UE) in LTE-A networks. In this paper, based on the kind of traffic running at the UE, a new appliance is proposed to switch the DRX mechanism from the power active state to the power saving state and vice versa. We mathematically investigate this switching technique in DRX mechanism using the M[X]/G/1 vacation queue system with N-policy. Various performance and energy metrics are obtained and examined numerically. Further, the optimal value of N as well as the maximum number of DRX cycles, are computed to obtain the minimal amount of power consumption. This study concludes the selection guidelines for choosing the optimal values of N and the maximum number of DRX cycles.

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Acknowledgements

Authors are thankful to the editor and two anonymous reviewers for their valuable suggestions and comments, which helped improve the paper to great extent.

Funding

This study received financial support from the Department of Telecommunications (DoT), India. Further, the first author would like to thank the Council of Scientific and Industrial Research (CSIR), India for providing her financial support through Senior Research Fellowship.

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Authors and Affiliations

  1. Department of Mathematics, Indian Institute of Technology Delhi, Hauzkhas, Delhi, 110016, India

    Anupam Gautam & S. Dharmaraja

  2. Mathematical Sciences Division Institute of Advanced Study in Science and Technology, Paschim Boragaon, Guwahati, Assam, 781035, India

    Gautam Choudhury

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  1. Anupam Gautam
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  2. Gautam Choudhury
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  3. S. Dharmaraja
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Correspondence to S. Dharmaraja.

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Gautam, A., Choudhury, G. & Dharmaraja, S. Performance analysis of DRX mechanism using batch arrival vacation queueing system with N-policy in LTE-A networks. Ann. Telecommun. 75, 353–367 (2020). https://doi.org/10.1007/s12243-018-0659-y

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  • DOI: https://doi.org/10.1007/s12243-018-0659-y

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