A digitized universal filtered orthogonal frequency division multiplexing for next generation communication applications. (November 2018)

• Record Type: Journal Article
• Authors: Deepa, T.; Rama Rao, T.
• Is Part Of: Computers & electrical engineering. Volume 72(2018)
• Page Start: 939
• Page End: 948
• Publication Date: 2018-11
• Subjects: Delta sigma modulation -- Error vector magnitude -- Peak to average power ratio -- Universal filtered orthogonal frequency division multiplexing; Computer engineering -- Periodicals; Electrical engineering -- Periodicals; Electrical engineering -- Data processing -- Periodicals; Ordinateurs -- Conception et construction -- Périodiques; Électrotechnique -- Périodiques; Électrotechnique -- Informatique -- Périodiques; Computer engineering; Electrical engineering; Electrical engineering -- Data processing; Periodicals; Electronic journals; 621.302854
• DOI: 10.1016/j.compeleceng.2018.01.035
• Languages: English
• ISSNs: 0045-7906

Abstract

Abstract: Universal filtered orthogonal frequency division multiplexing (UF-OFDM) is an alluring next generation 5G waveform for communication with small bursts transmission. Moreover, there are arising applications in which short data packet transmissions are awaited to carry fault-finding messages that must be obtained with low latency and high reliability. Visible light communication (VLC) acts as an ideal technology to accomplish these requirements. VLC uses intensity modulation and direct detection techniques and hence they require the signals to certainly be real valued positive sequences. In this paper, a digitized UF-OFDM based on delta sigma modulation (DSM) is proposed. The implementation of the proposed digital UF-OFDM is analyzed in comparison with continuous-time domain representation of UF-OFDM (CT-UF-OFDM). The simulation result exhibits that the system which is projected has better SNR performance than the digitized OFDM. It is found that around 15.8 dB of SNR is improved using the proposed scheme as compared to digital OFDM.