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Wireless Personal Communications

, Volume 79, Issue 3, pp 2305–2322 | Cite as

Analysis of Radio Resource Allocation in LTE Uplink

  • Safdar Nawaz Khan Marwat
  • Thushara Weerawardane
  • Yasir Zaki
  • Carmelita Goerg
  • Andreas Timm-Giel
Article

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.

Keywords

SC-FDMA Uplink Scheduling QoS 

Notes

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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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • Safdar Nawaz Khan Marwat
    • 1
  • Thushara Weerawardane
    • 2
  • Yasir Zaki
    • 3
  • Carmelita Goerg
    • 1
  • Andreas Timm-Giel
    • 4
  1. 1.ComNetsUniversity of BremenBremenGermany
  2. 2.Department of Electrical and Electronic EngineeringSir John Kotelawala Defence UniversityRatmalanaSri Lanka
  3. 3.Computer Science and EngineeringNew York University Abu DhabiAbu DhabiUAE
  4. 4.ComNetsHamburg University of TechnologyHamburgGermany

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