High competence MIMO-OFDM with generalized led index modulation
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Keywords:
Visible light communications (VLC), multiple-input-multiple-output (MIMO) systems, orthogonal frequency division multiplexing (OFDM), optical-spatial modulation (OSM), LED index modulation, maximum-a-posteriori probability (MAP) estimator[13]Abstract
Optical communication in specific the visible light communication (VLC) is the next generation technology in the field of data transmission. This paper proposes an idea of improving the transmission rate of the data via a totally different method of channel using optical light communication. Here, the normal radio frequency waves aren’t being used at all. Simple light will give us the required channel medium to send the data over a range. The system that is being proposed separates each data signal and sends it one by one to the light emitting modulation. The real and imaginary part of the complex time domain OFDM signals are taken apart and are sent over a frequency-flat light channel. As a standard it was demonstrated that the performance of the simulation in two different configurations with various numbers of transmitting and receiving antennas.
References
Miramirkhani F & Uysal M, “Channel modeling and characterization for visible light communications”, IEEE Photon. J., Vol.7, No.6, (2015), pp.1–16.
Fath T & Haas H, “Performance comparison of MIMO techniques for optical wireless communications in indoor environments”, IEEE Trans. Commun., Vol.61, No.2, (2013), pp.733–742.
Dimitrov S & Haas H, Principles of LED Light Communications: Towards Networked Li-Fi. Cambridge University Press, (2015).
Ertugrul B, Erdal P, Murat U & Harald H, “Generalized LED index modulation optical OFDM for MIMO visible light communications systems”, IEEE International Conference on Communications (ICC), (2016).
Chvojka P, Zvanovec S, Haigh PA & Ghassemlooy Z, “Channel characteristics of visible light communications within dynamic indoor environment”, J. Lightw. Technol., Vol.33, No.9, (2015), pp.1719–1725.
View more references (6)
Basar E, “Index modulation techniques for 5G wireless networks”, IEEE Commun. Mag., Vol.54, No.7, (2016), pp.168–175.
Armstrong J & Lowery AJ, “Power efficient optical OFDM”, Electron. Lett., Vol.42, No.6, (2006), pp.370–372.
Fernando N, Hong Y & Viterbo E, “Flip-OFDM for optical wireless communications”, IEEE Inf. Theo. Workshop, (2011), pp.5–9.
Azhar AH, Tran TA & O’Brien D, “A gigabit/s indoor wireless transmission using MIMO-OFDM visible-light communications”, IEEE Photon. Technol. Lett., Vol.25, No.2, (2013), pp.171–174.
Islim MS, Tsonev D & Haas H, “On the superposition modulation for OFDM-based optical wireless communication”, IEEE Global Conf. on Signal and Inform. Process, (2015), pp.1022–1026.
Anil Y, Ertugrul B, Farshad M, Erdal P, Murat U & Heral H, “Optical MIMO-OFDM with Generalised LED Index Modulation”, IEEE Transactions on Communications, (2017).