Channel characterization for indoor visible light communications

Long, Shihe, Khalighi, Mohammad-Ali, Wolf, Mike, Bourennane, Salah and Ghassemlooy, Zabih (2014) Channel characterization for indoor visible light communications. In: 2014 3rd International Workshop in Optical Wireless Communications, IWOW 2014, 17 September 2014, Funchal, Portugal.

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Official URL: http://dx.doi.org/10.1109/IWOW.2014.6950780

Abstract

Through the numerical simulation of the channel impulse response, we investigate the limitation on the data rate due to multipath reflections for an indoor visible light communication system. Three different metrics of channel are studied for medium-sized and large rooms, namely the root-mean-square delay spread, 3-dB bandwidth, and signal-to-interference ratio. To focus on the channel effect, we assume no bandwidth constraint on the LEDs and consider simple intensity modulation techniques excluding discrete multitone modulation. We show the interest of the proposed signal-to-interference ratio metric in determining the necessity of channel equalization at the receiver.

Item Type: Conference or Workshop Item (Paper)
Subjects: H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User: Nicola King
Date Deposited: 11 Dec 2014 14:49
Last Modified: 24 Oct 2017 08:53
URI: http://nrl.northumbria.ac.uk/id/eprint/18472

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