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Novel Fast User-Placement Ushering Algorithms and Performance Analysis for LTE Femtocell Networks

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Abstract

Nowadays, the sufficient quality-of-service (QoS) provision for multimedia mobile applications remains a major challenge to any wireless network. Conventional sufficient QoS provision techniques using resource allocation, data scheduling, and cross-layer optimization have been proposed to tackle this problem. Nevertheless, due to the unpredictable nature of wireless channel conditions, the QoS improvements resulting from the aforementioned approaches are often unsatisfactory. In this paper, we would like to further exploit our previous concept, namely user-placement ushering (UPU). A mobile user can be relocated to an optimal, or at least a better place to boost the QoS for a given application. The QoS is measured by the packet-success rate (PSR), which can be further computed from the code-block error-rate (CBER). Novel fast algorithms are devised here to usher (guide) a mobile user to an appropriate spot with sufficient QoS, which is nearby. We address the UPU problem to accommodate the realistic complex indoor environments, where obstacles are present. Our simulation results have demonstrated that our new fast UPU algorithms are capable of finding new appropriate locations satisfying the required QoSs for different wireless network applications.The preliminary results are presented in [1].

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APA

Pu, L., Wu, H. C., Wang, C., Fang, S. H., Mukhopadhyay, S., & Busch, C. (2020). Novel Fast User-Placement Ushering Algorithms and Performance Analysis for LTE Femtocell Networks. IEEE Transactions on Cognitive Communications and Networking, 6(1), 381–393. https://doi.org/10.1109/TCCN.2019.2937091

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