Achievable data rate of coordinated multi-point transmission for visible light communications
Document typeConference report
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Rights accessRestricted access - publisher's policy
This paper studies the sum data rate that a Visible Light Communication (VLC) system with multiple users canachieve when phosphor-converted white LED panels are usedto provide illumination and communication simultaneously. Three different transmission schemes based on Asymmetrically Clipped Optical Orthogonal Frequency Division Multiplexing(ACO-OFDM) are considered to allocate the communicationresources in each transmission point: Frequency Reuse (FR),Joint Transmission Coordinated Multi-Point (JT-CoMP), and a Hybrid combination of them. Since phosphor-converted whiteLEDs have a larger modulation bandwidth for blue opticalwavelengths rather than green-yellow-red ones, the performanceof each transmission method is also evaluated using a visibleand/or blue light optical filter in front of the Photodetector (PD).When the transmission points apply FR, strong inter-cell inter-ference results in high variability of the achievable data rateat different locations. On the other hand, when JT-CoMP isapplied, a more homogeneous data rate coverage is achieved,reducing the peak data rate in the inner parts of the cells butimproving notably the data rate in cell-edge areas.
CitationDowhuszko, A., Perez, A. Achievable data rate of coordinated multi-point transmission for visible light communications. A: IEEE International Symposium on Personal Indoor and Mobile Radio Communications. "IEEE PIMRC'17: 2017 IEEE International Symposium on Personal, Indoor and Mobile Radio Communications: conference proceedings: Montreal: 8-13 Oct. 2017". Institute of Electrical and Electronics Engineers (IEEE), 2017.
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