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Proceedings Paper

MPPM system for indoor wireless optical communications with angle-diversity detection
Author(s): A. García-Viera; S. Rodríguez; B. R. Mendoza; O. González; A. Ayala
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Paper Abstract

In this paper, an infrared wireless communication system based on Multiple Pulse Position Modulation (MPPM) employing angle-diversity detection is studied via simulation. The system can also be easily adapted for Visible Light Communications. MPPM is proposed as a modulation method to improve bandwidth efficiency in PPM. The system designed allows for comparing the performance based on the computation of the bit error rate (BER) as a function of the SNR for different MPPM and PPM modulation schemes employing angle-diversity detection. In this paper, two of the three ways to achieve angle-diversity detection are studied: conventional and sectored receivers. The results show a significant enhancement when angle-diversity receivers are employed, with the sectored receiver offering the highest performance. Furthermore, the results show that PPM offers a good performance for lower bit rates, though the BER increases rapidly when the bit rate is increased, even when angle-diversity receivers are used. MPPM proves to be more bandwidth efficient than PPM, since it allows to use a wider pulse for transmission of the same number of information bits per symbol.

Paper Details

Date Published: 28 May 2013
PDF: 11 pages
Proc. SPIE 8764, VLSI Circuits and Systems VI, 87640X (28 May 2013); doi: 10.1117/12.2016800
Show Author Affiliations
A. García-Viera, Univ. de La Laguna (Spain)
S. Rodríguez, Univ. de La Laguna (Spain)
B. R. Mendoza, Univ. de La Laguna (Spain)
O. González, Univ. de La Laguna (Spain)
A. Ayala, Univ. de La Laguna (Spain)

Published in SPIE Proceedings Vol. 8764:
VLSI Circuits and Systems VI
Teresa Riesgo; Massimo Conti, Editor(s)

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