Journal of lightwave technology, 2014-04, Vol.32 (8), p.1594-1600
2014
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Details
- Autor(en) / Beteiligte
- Titel
- Multiple Access Resource Allocation in Visible Light Communication Systems
- Ist Teil von
- Journal of lightwave technology, 2014-04, Vol.32 (8), p.1594-1600
- Ort / Verlag
- New York, NY: IEEE
- Erscheinungsjahr
- 2014
- Quelle
- IEEE Electronic Library Online
- Beschreibungen/Notizen
- Discrete multi-tone (DMT) modulation is known to be an efficient single-transmitter technique for visible-light communication. However, the use of this technique in a multiple transmitter environment requires effective subcarrier and power allocation design in order to exploit the full potential of spatial multiple-transmitter diversity. Spatial reuse of the subcarriers in the presence of interference and power constraints increases the efficiency of multiple access (MA) DMT communication. In this paper, we propose an algorithm that manages interference-constrained subcarrier reuse between different transmitters and power redistribution between different subcarriers in a heuristic manner. The algorithm simulation shows an improvement in the average bit-rate as compared with a conventional DMT method. Furthermore, the effectiveness of the proposed MA-DMT scheme increases with the number of users.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 0733-8724eISSN: 1558-2213DOI: 10.1109/JLT.2014.2308282Titel-ID: cdi_pascalfrancis_primary_28475541
- Format
- –
- Schlagworte
- Applied sciences, DC-biased optical discrete multi-tone (DCO-DMT), dc-biased optical orthogonal frequency division multiplexing (DCO-OFDM), discrete multi-tone (DMT), Exact sciences and technology, free-space optical (FSO) communication, Information, signal and communications theory, Interference, interference management, Modulation, demodulation, Multiplexing, optical cell, Optical fiber communications, optical network scalability, Optical receivers, Optical telecommunications, Optical transmitters, Optimization, resource allocation, Resource management, Signal and communications theory, Telecommunications, Telecommunications and information theory, visible-light communication (VLC), Wireless optical communications