Orthogonal Frequency Division Multiplexing for Wireless Communications (Signals and Communication Technology)
Fundamental analysis for visible-light communication system using LED lights
IEEE Transactions on Consumer Electronics
A new approach for evaluating clipping distortion in multicarrier systems
IEEE Journal on Selected Areas in Communications
The WLED communication system using SC-FDM techniques for WLAN communications
Proceedings of the 6th International Wireless Communications and Mobile Computing Conference
Wireless optical OFDM implementation for aircraft cabin communication links
ISWPC'10 Proceedings of the 5th IEEE international conference on Wireless pervasive computing
Novel techniques of single-carrier frequency-domain equalization for optical wireless communications
EURASIP Journal on Advances in Signal Processing - Special issue on advances in single carrier block modulation with frequency domain processing
LED clipping distortion compensation in optical wireless communication via multiple transmit LEDs
Photonic Network Communications
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Orthogonal frequency division multiplexing (OFDM) is a promising technique to realize high-speed indoor optical wireless (OW) links through the exploitation of the high peak-to-average power ratio (PAPR) for intensity modulation (IM). However, non-linear distortions in the transmission chain can significantly compromise the performance of OFDM as they incur inter-channel interference. The light emitting diode (LED) is the main source for such distortions due to its nonlinear behavior. Distortion levels can be controlled when the LED operates in a quasi-linear segment of its characteristic around a bias point. The severity of non-linear distortions and the dependence of the bias point on the chosen digital modulation scheme are analyzed in this paper. In this context, the bit-error performance is determined as a function of the bias point and the applied power back-offs.