Optical wireless technology uses light for mobile communications. The idea is to simultaneously combine the illumination provided by modern high-power light-emitting diodes (LEDs) with high-speed wireless communications. There have been numerous practical demonstrations of this concept, and the technology is now well matured to be deployed in practice. Independent market analysts forecast a high-volume market for mobile communication devices connected to the ubiquitous lighting infrastructure. This paper aims to make optical and wireless industries aware of the requirement for standardization in this area. The authors present the view of the European COST 1101 research network OPTICWISE towards a next-generation optical wireless standard aiming at data rates from 1 Mbit/s to 10 Gbit/s. Besides key technical insights, relevant use cases and main features are described that were recently adopted by the IEEE 802.15.7r1 working group. Moreover, a channel model is introduced to enable assessment of technical proposals
The throughput of a Stop-and-Wait (SW) Automatic Repeat reQuest (ARQ) communication system is analysed in conjunction with a practical network coding (NC) scheme. In particular, the study is aimed at comparing the throughput of the SW system with and without NC in the context of a predetermined communication link. To evaluate the effects of the proposed scheme, a simulation study is carried out using the MATLAB SimEvents toolbox. The results show that practical NC offers a throughput advantage of at least 50% over traditional SWARQ, and that this is particularly noticeable in the presence of high error rates.
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