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ITFDS: Channel-Aware Integrated Time and Frequency-Based Downlink LTE Scheduling in MANET
Le Minh Tuan1,2, Le Hoang Son2, Hoang Viet Long3,4
1Hanoi University of Home Affairs, Hanoi 01000, Vietnam.
Sensors (Basel, Switzerland)
|June 21, 2020
Summary
A new channel-aware algorithm, Integrated Time and Frequency-based Downlink LTE Scheduling (ITFDS), enhances mobile communication performance in Industry 4.0. This method improves data transmission by 12% for both real-time and non-real-time applications.
Area of Science:
- Mobile Ad-hoc Networks (MANETs)
- Mobile Computational Grids (MCGs)
- Industry 4.0 Communication Systems
Background:
- Industry 4.0 demands dynamic, high-speed mobile communication for applications like video conferencing.
- Existing Long Term Evolution (LTE) scheduling methods in frequency or time domains have limitations in balancing Quality of Service (QoS) and user fairness.
- There is a need for integrated time and frequency domain scheduling to meet diverse QoS requirements in LTE networks.
Purpose of the Study:
- To propose a novel channel-aware Integrated Time and Frequency-based Downlink LTE Scheduling (ITFDS) algorithm.
- To enhance LTE network performance for both real-time and non-real-time applications in Industry 4.0.
- To improve data transmission efficiency and user fairness in mobile ad-hoc networks.
Main Methods:
- The ITFDS algorithm calculates channel capacity and quality using Channel Quality Indicator (CQI).
- It employs dynamic class-based establishment (DCE) for data broadcasting and calculates queue length for time-domain scheduling.
- Largest Weight Delay First (LWDF) algorithm is used for frequency-domain resource allocation within the same Transmission Time Interval (TTI).
Main Results:
- The proposed ITFDS algorithm demonstrated a performance improvement of approximately 12% compared to existing methods.
- ITFDS effectively balances real-time needs with fairness among users in LTE downlink scheduling.
- Experimental results validate the superiority of ITFDS over Largest Weighted Delay First (LWDF), Proportional Fair (PF), Maximum Throughput (MT), and Exponential/Proportional Fair (EXP/PF) algorithms.
Conclusions:
- The ITFDS algorithm offers a significant advancement in LTE scheduling for Industry 4.0 environments.
- It provides a robust solution for managing diverse QoS requirements and ensuring efficient data transmission.
- The integrated time and frequency domain approach optimizes performance for a wide range of mobile communication applications.
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