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Channel aware optimized proportional fair scheduler for LTE downlink

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Abstract

Long Term Evolution (LTE) mobile networks, time-frequency radio resources are allotted with respect to Quality of Service (QoS) requirements using scheduling algorithms. Buffer Occupancy (BO), Average Cellular Throughput (ACT), Average User Throughput (AUT), Blocking Probability (BP) and Fairness Index (FI) are the parameters to be considered when designing a scheduler. A new scheduling policy is proposed in this paper, called “Channel Aware Optimized Proportional Fair (CAOPF)” to optimize the channel behavior based on Channel Quality Indicator (CQI). The performance of the introduced scheduler is investigated and compared with the other schedulers such as Round Robin (RR) and Proportional Fair (PF). Simulation results indicate that the new scheduler gives the best level of QoS performance in terms of the above said parameters when compared with the other schedulers taken into account. It provides no pending data of users in good channel condition, higher ACT, higher improvement in user throughput in good and average channel conditions. In addition, very low blocking of user data in good channel condition and optimized FI and resource block (RB) allocated to the users in all channel conditions are seen.

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Authors and Affiliations

  1. Department of ECE, Periyar Maniammai Institute of Science and Technology, Thanjavur, Tamil Nadu, 613 403, India

    B. Satheesh Monikandan & S. P. K. Babu

  2. Faculty of ECE, Indian Naval Academy, Ezhimala, Kerala, 670 310, India

    B. Satheesh Monikandan

  3. Mount Zion Institute of Science and Technology, Chengannur, Kerala, 689 521, India

    A. Sivasubramanian

  4. Karpagam Academy of Higher Education, Coimbatore, Tamil Nadu, 641 021, India

    G. K. D. Prasanna Venkatesan

  5. S.A. Engineering College, Chennai, Tamil Nadu, 600 077, India

    C. Arunachalaperumal

Authors
  1. B. Satheesh Monikandan
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  2. A. Sivasubramanian
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  3. S. P. K. Babu
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  4. G. K. D. Prasanna Venkatesan
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  5. C. Arunachalaperumal
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Correspondence to B. Satheesh Monikandan.

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Monikandan, B.S., Sivasubramanian, A., Babu, S.P.K. et al. Channel aware optimized proportional fair scheduler for LTE downlink. Peer-to-Peer Netw. Appl. 13, 2135–2144 (2020). https://doi.org/10.1007/s12083-019-00826-z

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