Visible light communication based on offset pulse position modulation (Offset-PPM) using high power LED

Ahfayd, Mostafa H.; Sibley, Martin J.N.; Mather, Peter; Lazaridis, Pavlos I.

doi:10.23919/ursigass.2017.8105136

Cited by 13 publications

(5 citation statements)

References 15 publications

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“…By moving one digit from the least significant towards the most significant, the next code words in the sequence will be produced [6]. Ahfayd et al [7] studied the spectrum properties of OPPM, MPPM, and truncated PPM. This in turn has concluded that the OPPM can produce distinct lines compared to DPPM.…”

Section: Offset Pulse Position Modulationmentioning

confidence: 99%

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Improving the error performance of offset pulse position modulation using Reed–Solomon error correction code and low-density parity

Albatoosh

Al-Nedawe

Shujaa

2023

IJECE

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An innovative performance study of an offset pulse-position modulation (OPPM) scheme is presented in this work with Reed–Solomon (RS) and low-density parity-checking (LDPC). The main aim is to resolve the errors of OPPM three using an RS or LDPC as a sporadic set of forward error correction (FEC). In this regard, the separate FEC has been utilized with coding that is based on multi-level, and waveform shaping based on the trellis. To systematically conduct this research, the greatest transmission efficiency that associated with the optimum RS code rates at different fiber normalization bandwidths is evaluated. Furthermore, the transmission efficiencies, channel extension, as well as the required number of photons per pulse of OPPM before and after the integration with RS or LDPC are compared. The results indicate an enhancement of mitigating the system's bit error rate and delivering more error-free data to the receiver in the occasion of applying the optimal settings of the RS or LDPC.

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Section: Offset Pulse Position Modulationmentioning

confidence: 99%

“…RS is represented in this study to recover the error causes that plague the OPPM. PE is specifically used to critically represent the symbol-error likelihood encoded by RS as illustrated in (7).…”

Section: Error Correction Code 31 Reed-solomon Error Correctionmentioning

confidence: 99%

Improving the error performance of offset pulse position modulation using Reed–Solomon error correction code and low-density parity

Albatoosh

Al-Nedawe

Shujaa

2023

IJECE

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“…Regardless of the fact that the RS technique can increase packet error rate performance during error detection, Reed and Solomon (1960) established DiPPM's dominance in analyzing defects properly. Additionally, the MLSD error corrector can be used to reduce DiPPM mistakes accumulated during transmission as recommended by Al‐Nedawe [10]. The Reed Salmoon solves the DiPPM error sources by considerably reducing the number of mistakes that happened during transmission.…”

Section: Introductionmentioning

confidence: 99%

“…At the frame repetition frequency, OPPM creates distinct lines, but digital PPM does not, thus OPPM seems to have a strong frame element. Three bits of PCM are converted into four-bit codewords using the OPPM method [8].…”

Section: Introductionmentioning

confidence: 99%

Comparison between dicode PPM and offset PPM enhancement with different error correction codes

2023

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Offset pulse position modulation (OPPM) and Dicode pulse position modulation (DiPPM) have been introduced as new attractive modulation techniques, however, they are suffering from erasure, wrong slot, and false alarm errors. in this paper, two types of error correction (EC) codes, Low‐Density Parity Check (LDPC) code and Reed Solomon (RS) code, where paired the OPPM and DiPPM systems to reduce bugs, analyze the best EC parameters, and choose the superlative EC system. In other words, the performance of OPPM engaging LDPC codes and DiPPM employing LDPC codes will be compared against the OPPM engaging RS codes and DiPPM employing RS codes. To systematically carry out this comparison, numbers of photons, transmission efficiency, and the code rate are computed. The evaluation has stated that the data transmission rate at the start has indicated that OPPM with LDPC requires only 1.2 × 103 photons/pulse compared to the necessity of 1.821 × 103 photons/pulse when the DiPPM used LDPC. Accordingly, the transmission efficiency has been increased due to a reduction of number of photons. Also, the coded OPPM with LDPC codes is better than the coded DiPPM with LDPC codes when operating at a code rate that is approximately 0.7.

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“…For the improvement and mitigation of transmission quality and the effects of inter symbol interference (ISI) respectively an investigation was conducted with dicode pulse position modulation technique (DiPPM) [15]. In previous experiments by the others, offset pulse position modulation technique has been implemented using a 30 W LED based VLC equipment achieving a data rate of 11 Mbps [16].…”

Section: Introductionmentioning

confidence: 99%

Visible light communication based system using high power LED and dicode pulse position modulation technique

Ahfayd

Farhat

Sibley

et al. 2017

2017 25th Telecommunication Forum (TELFOR)

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-In this paper a dicode pulse position modulation (DiPPM) technique has been successfully implemented for an indoor visible light communication (VLC) based system using an FPGA and a commercial high power white LED (30 W). A data rate of 13 Mbps has been achieved with a bit error rate (BER) <10 -11 at a free space distance of 1.2 m through a basic transceiver circuit, and 14.5 Mbps with 1.15x10 -6 of BER. Furthermore, a data rate of 13 Mbps has been successfully transmitted over a distance of 1.8 m with BER of 10 -5 . This proves that the application of DiPPM is a viable modulation system over free space communication links.

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Visible light communication based on offset pulse position modulation (Offset-PPM) using high power LED

Cited by 13 publications

References 15 publications

Improving the error performance of offset pulse position modulation using Reed–Solomon error correction code and low-density parity

Improving the error performance of offset pulse position modulation using Reed–Solomon error correction code and low-density parity

Comparison between dicode PPM and offset PPM enhancement with different error correction codes

Visible light communication based system using high power LED and dicode pulse position modulation technique

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