Throughput improvement in CAP based indoor VLC system using GMSK filters

Rizwana Ahmad; Anand Srivastava

doi:10.1117/12.2506879

1 February 2019 Throughput improvement in CAP based indoor VLC system using GMSK filters

Rizwana Ahmad, Anand Srivastava

Proceedings Volume 10945, Broadband Access Communication Technologies XIII; 109450P (2019) https://doi.org/10.1117/12.2506879
Event: SPIE OPTO, 2019, San Francisco, California, United States

Abstract

Carrier-less amplitude and phase (CAP) modulation schemes have been actively explored in visible light communication (VLC) because of its high spectral efficiency and simpler transceiver design. Conventionally, CAP with root-raised-cosine filter (CAP-RRC) has been explored for VLC. However, in this paper, we have implemented CAP with a Gaussian minimum shift keying filter (CAP-GMSK) in order to improve the system performance. The proposed scheme is compared against CAP-RRC and baseline DCO-OFDM, on the basis of symbol error rate (SER) and peak-to-average power ratio (PAPR) performance. The result shows that as compared to DCO- OFDM, CAP-GMSK and CAP-RRC provides a SNR gain of 8 and 1 dB and PAPR improvement of 2.5 and 2.3 dB respectively.

Citation Download Citation

Rizwana Ahmad and Anand Srivastava "Throughput improvement in CAP based indoor VLC system using GMSK filters", Proc. SPIE 10945, Broadband Access Communication Technologies XIII, 109450P (1 February 2019); https://doi.org/10.1117/12.2506879

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KEYWORDS

Orthogonal frequency division multiplexing

Receivers

Gaussian filters

Light emitting diodes

Modulation

Transmitters

Raised cosine filters

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