A subcarrier modulation based optical wireless communication system employing transmission diversity

Authors:
Jiang Liu;Mianxiong Dong;Laurence T. Yang;Shigeru Shimamoto
Affiliations:
School of Electrical and Electronic Engineering, North China Electric Power University, Beijing, China;School of Computer Science and Engineering, The University of Aizu, Aizu Wakamatsu, Japan;Department of Computer Science, St. Francis Xavier University, Antigonish, Canada;Global Information and Telecommunication Institute, Waseda University, Tokyo, Japan
Venue:
The Journal of Supercomputing
Year:
2013

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Abstract

In this paper, we propose an optical wireless communication service for indoor environment. To seamlessly cover the target area and keep the received signal power strength at an acceptable level, we send the signal from multiple diffused optical emitters and achieve possible transmit diversity. With the proposed diversity scheme, the effective coverage range of the proposed system can be significantly enlarged with a guaranteed BER performance. Simulation results show a 13.4 m2 area can be effectively covered by two optical emitters with optical emitter spacing of 3 m and average transmit optical power of 28 dBm.