Wireless Personal Communications

, Volume 93, Issue 4, pp 987–1003 | Cite as

Modulation and Coding Scheme (MCS) for Indoor Image Sensor Communication System

  • Chang Hyun Hong
  • Trang Nguyen
  • Nam Tuan Le
  • Yeong Min Jang
Article

Abstract

In this paper, we propose an indoor image sensor communication (ISC) system comprising an attentive indoor environment in which rolling-shutter cameras (including smart phone cameras) are used to receive data from light sources. The challenges of intended system mainly come from the receiver side, including its rolling shutter mechanism, its low and time-variant frame rate (e.g., no greater than 30 fps), and the narrow bandwidth response (i.e. several kHz baseband). Also, the requirements of flicker-free modulation enabling the dimming capacity, and indoor distance (i.e., up to 10 m) are unmitigated challenges. To resolve all mentioned challenges, we propose new hybrid modulation schemes, including M-ary frequency-shift keying (M-FSK) modulation and a hybrid modulation of M-FSK and phase-shift keying (2-PSK) for ISC. Simulation, numerical analysis and experiment results are given to illustrate the feasibility of the intended system.

Keywords

Indoor image sensor communication (ISC) Rolling shutter camera Modulation and coding scheme M-FSK 2-PSK Pair of LEDs Optical wireless communication (OWC) IEEE TG7m 

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Copyright information

© Springer Science+Business Media New York 2017

Authors and Affiliations

  1. 1.Department of Electronics EngineeringKookmin UniversitySeoulKorea

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