ws 18: e3

Research Article

On Performance Improvement of Centroid Topology Optimization Schemes in LTE Networks

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  • @ARTICLE{10.4108/eai.13-7-2018.159350,
        author={Jin Zhang and Yalong Wu and James Nguyen and Wei Yu and Chao Lu and Daniel Ku},
        title={On Performance Improvement of Centroid Topology Optimization Schemes in LTE Networks},
        journal={EAI Endorsed Transactions on Wireless Spectrum: Online First},
        volume={},
        number={},
        publisher={EAI},
        journal_a={WS},
        year={2019},
        month={7},
        keywords={Wireless communication and networks, LTE networks, Centroid topology optimization, Power control, Femto relay, Performance assessment},
        doi={10.4108/eai.13-7-2018.159350}
    }
    
  • Jin Zhang
    Yalong Wu
    James Nguyen
    Wei Yu
    Chao Lu
    Daniel Ku
    Year: 2019
    On Performance Improvement of Centroid Topology Optimization Schemes in LTE Networks
    WS
    EAI
    DOI: 10.4108/eai.13-7-2018.159350
Jin Zhang1, Yalong Wu1, James Nguyen2, Wei Yu1,*, Chao Lu1, Daniel Ku2
  • 1: Dept. of Computer and Information Sciences, Towson University, Towson, MD USA.
  • 2: US Army Communications-Electronics Research, Development, and Engineering Center (CERDEC), Aberdeen Proving Ground, MD, USA.
*Contact email: Wyu@towson.edu

Abstract

In Long Term Evolution (LTE) networks, centroid topology optimization (CTO)-based schemes have been widely used to construct network topologies such that overall network performance is improved. In this paper, we systematically analyze CTO-based schemes and develop new schemes to improve network performance by reconnecting disconnected devices. First, we conduct an investigation of CTO-based schemes to understand their limitations. Then, we propose two schemes, called the Power Control-based scheme and Femto Relaybased scheme, to overcome this limitation in LTE networks, in which CTO-based schemes are implemented. Via intensive performance evaluation using NS3, we validate the effectiveness of our proposed schemes towards addressing the limitations of CTO-based schemes. Our results demonstrate an improvement in LTEnetwork performance above both the unoptimized and CTO-based schemes with respect to throughput, delay, delay standard deviation (DSD), etc.