Dynamic User-Centric Clustering Design for Combined Transmission in Downlink LiFi System
Dynamic User-Centric Clustering Design for Combined Transmission in Downlink LiFi System
- Neue Suche nach: Ma, Weibin
- Neue Suche nach: Zhang, Lin
- Neue Suche nach: Fang, Furong
- Neue Suche nach: Bian, Jing
- Neue Suche nach: Ma, Weibin
- Neue Suche nach: Zhang, Lin
- Neue Suche nach: Fang, Furong
- Neue Suche nach: Bian, Jing
Light fidelity (LiFi) provides a promising solution for indoor high-speed wireless transmissions. However, the dense deployment of access points (APs) and the unity frequency reuse in LiFi system may induce the inter-cell interference (ICI) issue. In this paper, we consider the combined transmission (CT) which converts harmful interference to useful signals and thereby combats the ICI, and propose a dynamic user-centric clustering scheme for the downlink LiFi system. In our design, with the objective of maximizing the system throughput under proportional fairness constraints, the CT clustering is formulated as a mixed-integer non- linear programming (MINLP) problem. Then we set up an exact potential game (EPG) model, where the Nash equilibrium is found via the best response algorithm, to provide a suboptimal solution to the MINLP problem. Simulation results demonstrate that the LiFi system using our presented scheme exhibits a higher throughput and a better satisfaction degree than that employing the single-point transmission (SPT) scheme.
Dokumentinformationen
Dynamic User-Centric Clustering Design for Combined Transmission in Downlink LiFi System
2019-09-01
318125 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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