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- Title
The Performance Comparison of SC-PPM Receiver Models.
- Authors
Sönmez, Mehmet
- Abstract
This paper describes a physical layer solution to provide data transmission in the VLC networks. In the paper, it is aimed to examine the performance comparison of SC-PPM (Subcarrier Pulse Position Modulation) demodulator schemes. Three receiver techniques have been considered to assemble demodulator techniques to the SC-PPM receiver system. Firstly, the traditional PPM (T-PPM) demodulator has been applied to the SC-4PPM receiver system to estimate the slot that includes high-frequency signal that is referred to as subcarrier signal. To successfully detect the data signal using a traditional PPM receiver, it must be known the dimming level of the received SC-4PPM signal. In another receiver model that is referred to as PD (Peak Detector), it is aimed to detect peak values of slot filled by high frequency signal. The disadvantage of this system is that BER (Bit Error Rate) performance depends on the difference between the peak and bottom values of the subcarrier-filled slot. Hence, the second method is improved to achieve a similar BER performance at all dimming levels between 12.5% and 87.5%. This receiver model is called IPD in the paper. In brief, it is reported for the first time, it has been employed the PD and the IPD algorithms for the SC-PPM receiver schemes. In addition to this, it is given a theoretical framework for both the traditional PPM and the improved receiver schemes in VLC-SC-PPM schemes. Moreover, it has been investigated how the SC-PPM receiver schemes are affected by brightness level.
- Subjects
PULSE position modulation; ELECTRONICS engineers; RADIO detectors; DEMODULATION; RADIO technology equipment
- Publication
Hittite Journal of Science & Engineering, 2023, Vol 10, Issue 2, p91
- ISSN
2149-2123
- Publication type
Article
- DOI
10.17350/HJSE19030000306