Experimental Results on Simple Distributed Cooperative Transmission Scheme with Visible Light Communication

Takaya YAMAZATO  Koji NAKAO  Hiraku OKADA  Masaaki KATAYAMA  

IEICE TRANSACTIONS on Communications   Vol.E93-B    No.11    pp.2959-2962
Publication Date: 2010/11/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E93.B.2959
Print ISSN: 0916-8516
Type of Manuscript: Special Section LETTER (Special Section on Fundamental Issues on Deployment of Ubiquitous Sensor Networks)
wireless sensor networks,  distributed cooperative transmission,  turbo coded FSK,  random phase multiplication,  visible light communication,  

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We consider a distributed transmission of data packet to a sink where the distance of a sensor node to a sink is much longer than the maximum communication range of each sensor node. We give a simple modification to the transmitter, i.e., multiplication of random phase before the transmission. Thanks to Turbo Code, it is possible to extend the transmission range as the received amplitude varies symbol by symbol for our scheme while whole data packet may be lost for the conventional scheme. In this letter, we report the experimental results of our scheme equivalently developed using visible light communication.