MPPM system for indoor wireless optical communications with angle-diversity detection

A. García-Viera; S. Rodríguez; B. R. Mendoza; O. González; A. Ayala

doi:10.1117/12.2016800

28 May 2013 MPPM system for indoor wireless optical communications with angle-diversity detection

A. García-Viera, S. Rodríguez, B. R. Mendoza, O. González, A. Ayala

Proceedings Volume 8764, VLSI Circuits and Systems VI; 87640X (2013) https://doi.org/10.1117/12.2016800
Event: SPIE Microtechnologies, 2013, Grenoble, France

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.

Citation Download Citation

A. García-Viera, S. Rodríguez, B. R. Mendoza, O. González, and A. Ayala "MPPM system for indoor wireless optical communications with angle-diversity detection", Proc. SPIE 8764, VLSI Circuits and Systems VI, 87640X (28 May 2013); https://doi.org/10.1117/12.2016800

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