研究目的
Investigating the performance of layered asymmetrically clipped optical OFDM (LACO-OFDM) aided ultra-dense VLC (UD-VLC) networks in terms of user-association, multiple access (MA), and resource allocation to handle severe inter-cell interference (ICI) amongst densely-deployed access points (AP).
研究成果
The proposed LACO-OFDM aided UD-VLC using the hybrid MA scheme is more robust against ICI, albeit at a modest decrease in sum-throughput. The study highlights the benefits of the proposed overlapped clustering strategy and dynamic resource allocation in enhancing the performance of UD-VLC networks.
研究不足
The study acknowledges the trade-off between the achievable throughput and ICI-mitigation, and the potential for modestly decreasing the sum-throughput as a price for robustness against ICI.
1：Experimental Design and Method Selection:
The study employs a novel overlapped clustering technique relying on a hybrid non-orthogonal MA (NOMA) and orthogonal MA (OMA) scheme for enhancing performance, with dynamic resource allocation.
2：Sample Selection and Data Sources:
The study considers an indoor environment with densely deployed APs on the ceiling facing downward, relying on single-color-LED arrays.
3：List of Experimental Equipment and Materials:
The study uses visible light communication (VLC) systems with specific parameters for LED arrays and photo-diode (PD) receivers.
4：Experimental Procedures and Operational Workflow:
The study involves simulations to evaluate the performance of the proposed LACO-OFDM aided UD-VLC using the hybrid MA scheme.
5：Data Analysis Methods:
The study analyzes the system's performance in terms of sum-throughput and outage probability (OP) under various conditions.
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