Advanced search ?

Object

Download

Title: Complex Signal Mapping for Improving Spectral Efficiency of Li-Fi Systems, Journal of Telecommunications and Information Technology, 2019, nr 3

Creator:

Sileh, Ibrahim K. ; Hussein, Mohammed K. ; Abdulkafi, Ayad A. ; Hardan, Saad M.

Date:

2019, nr 3

Resource Type:

artykuł

Description:

Light fidelity (Li-Fi) systems based on the orthogonal frequency division multiplexing (OFDM) scheme have gained more attention in the communications circles, as a means to provide high spectral efficiency and ensure stricter data rate requirements for visible light communication (VLC) systems. However, common OFDM schemes employ Hermitian symmetry to obtain a real-valued signal which is necessary in intensity modulation and direct detection (IM/DD) optical systems, at the expense of doubling the required bandwidth. In this paper, a novel transmission scheme for an OFDM-based Li-Fi system is proposed to tackle the issue in question. A new approach to complex signal mapping (CSM), based on the pairing function method, has been developed for Li-Fi systems. It does not require Hermitian symmetry and, hence, saves about 50% of the required bandwidth. Unlike existing OFDM-based VLC approaches, the proposed scheme employs CSM to ensure a real and positive signal without Hermitian symmetry in order to fully utilize the bandwidth available to Li-Fi networks. Simulation results show that the proposed scheme significantly outperforms other systems in terms of spectral efficiency. The CSM-OFDM based Li-Fi system also achieves a good peak-to-average power ratio (PAPR) reduction with acceptable bit-error-rate (BER) performance, compared to conventional approaches.

Publisher:

National Institute of Telecommunications

Format:

application/pdf

Resource Identifier:

ISSN 1509-4553, on-line: ISSN 1899-8852 ; oai:bc.itl.waw.pl:2105

Source:

Journal of Telecommunications and Information Technology

Language:

ang

Rights Management:

Biblioteka Naukowa Instytutu Łączności

Subject and keywords:

PAPR BER OFDM Li-Fi signal mapping

Object collections:

Last modified:

Oct 28, 2019

In our library since:

Oct 28, 2019

Number of object content hits:

81

All available object's versions:

https://bc.itl.waw.pl/publication/2395

Show description in RDF format:

RDF

Show description in OAI-PMH format:

OAI-PMH

Edition name Date
Sileh, Ibrahim K.; Abdulkafi, Ayad A.; Hussein, Mohammed K.; Hardan, Saad M, Complex Signal Mapping for Improving Spectral Efficiency of Li-Fi Systems, Journal of Telecommunications and Information Technology, 2019, nr 3 Oct 28, 2019

Objects Similar
Comparison of traffic performance of QPSK and 16-QAM modulation techniques for OFDM system, Journal of Telecommunications and Information Technology, 2005, nr 1

Islam, Imdadul Hossain, Siddique

2005, nr 1
artykuł
Enhancement of Power Efficiency in OFDM System by SLM with Predistortion Technique, Journal of Telecommunications and Information Technology, 2011, nr 4

Sharma, T. N. Sharma, Pankaj Kumar Nagaria, R. K.

2011, nr 4
artykuł
Interleaving Technique Implementation to Reduce PAPR of OFDM Signal in Presence of Nonlinear Amplification with Memory Effects, Journal of Telecommunications and Information Technology, 2018, nr 3

Aimer, Younes Duvanaud, Claude Bachir, Smai Bouazza, Boubakar Seddik

2018, nr 3
artykuł
Studying and Modeling the Performance of the TCM-STBC Systems in the Rayleigh Channel, Journal of Telecommunications and Information Technology, 2021, nr 1

Lahcene, Mohamed Rida Elarbi, Abderraouf Bendelhoum, Mohammed Sofiane Menezla, Fayssal

2021, nr 1
artykuł
Labeling of signals in optical networks and its applications, Journal of Telecommunications and Information Technology, 2004, nr 2

Borzycki, Krzysztof

2004, nr 2
artykuł
Using Least Mean p-Power Algorithm to Correct Channel Distortion in MC-CDMA Systems, Journal of Telecommunications and Information Technology, 2018, nr 3

Frikel, Miloud Sabri, Mohamed Zidane, Mohammed Safi, Said

2018, nr 3
artykuł
Suitable Spreading Sequences for Asynchronous MC-CDMA Systems, Journal of Telecommunications and Information Technology, 2018, nr 3

Djebbari, Ali Addad, Mouad

2018, nr 3
artykuł
Subcarrier Gain Based Power Allocation in Multicarrier Systems, Journal of Telecommunications and Information Technology, 2014, nr 1

Abd El-Samie, Fathi E. Zhu, Xu Messiha, Nagy W. Sedhom, Germien G. Abd-Elnaby, Mohammed

2014, nr 1
artykuł
More
×

Citation

Citation style:

Contact details

Address

Instytut Łączności – Państwowy Instytut Badawczy ul. Szachowa 1 04-894 Warszawa

Phone

(+48) 5128 696

E-Mail

biblioteka@il-pib.pl

Visit us!

This page uses 'cookies'. More information