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Analysis of Radio Resource Allocation in LTE Uplink

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Abstract

Long term evolution (LTE) uses orthogonal frequency division multiple access (OFDMA) and single carrier frequency division multiple access (SC-FDMA) as the downlink and uplink transmission schemes respectively. The Quality of Service (QoS) provision to users is one of the key objectives of the wireless network operators. This paper analyses an uplink LTE radio scheduler, called bandwidth and QoS aware (BQA) scheduler and evaluates its QoS performance. The BQA uplink scheduler is designed to provide efficient and fair allocation of the radio resources to users according to: the QoS of various traffic classes and the instantaneous channel conditions. The scheduler functionality is divided into time domain packet scheduling (TDPS) and frequency domain packet scheduling (FDPS). In this paper, an innovative feature, that is user QoS provisioning with dynamic QoS weights, is employed for the BQA scheduler along with multi-bearer users support. The QoS performance of the BQA scheduler is analyzed in several simulation scenarios using heterogeneous traffic environment. The results show that the BQA scheduler guarantees provision of QoS to users.

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Acknowledgments

We are grateful to the International Graduate School for Dynamics in Logistics, University of Bremen, Germany and University of Engineering and Technology, Peshawar, Pakistan for the financial support of this research work.

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Authors and Affiliations

  1. ComNets, University of Bremen, Bremen, 28359, Germany

    Safdar Nawaz Khan Marwat & Carmelita Goerg

  2. Department of Electrical and Electronic Engineering, Sir John Kotelawala Defence University, Ratmalana, Sri Lanka

    Thushara Weerawardane

  3. Computer Science and Engineering, New York University Abu Dhabi, Abu Dhabi, UAE

    Yasir Zaki

  4. ComNets, Hamburg University of Technology, Hamburg, 21073, Germany

    Andreas Timm-Giel

Authors
  1. Safdar Nawaz Khan Marwat
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  2. Thushara Weerawardane
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  3. Yasir Zaki
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  4. Carmelita Goerg
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  5. Andreas Timm-Giel
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Correspondence to Safdar Nawaz Khan Marwat.

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Marwat, S.N.K., Weerawardane, T., Zaki, Y. et al. Analysis of Radio Resource Allocation in LTE Uplink. Wireless Pers Commun 79, 2305–2322 (2014). https://doi.org/10.1007/s11277-014-1986-6

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  • DOI: https://doi.org/10.1007/s11277-014-1986-6

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