Comparison of Baseband Modulations in Visual Light Positioning

Conference paper
Part of the Advances in Intelligent and Soft Computing book series (AINSC, volume 125)

Abstract

In this paper, author examines the use of on-off keying (OOK) and pulse-position modulation (PPM) and differential pulse-position modulation (DPPM) for visual light positioning systems, presents expressions for the error probability and synchronization failure probability and power spectral density of OOK, PPM and DPPM, gives structure design to realize PPM and DPPM based on existing OOK systems. Finally, it is shown that for a given bandwidth, the performance of 2M-DPPM is better than the performance of M-PPM, while the system structure of DPPM is simpler.

Keywords

Modulation schemes power efficiency synchronization failure probability 
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Copyright information

© Springer-Verlag GmbH Berlin Heidelberg 2012

Authors and Affiliations

  1. 1.Department of Electronic EngineeringTsinghua UniversityBeijingChina

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