Performance studies of MIMO based DCO-OFDM in underwater wireless optical communication systems
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Marine Science and Technology"
DOI: 10.1007/s00773-020-00724-7
Abstract: The research in underwater communication system is focused towards wireless networks in view of recent developments in wireless technology and increasing need for deep sea data mining. The underwater wireless optical communication (UWOC) have more… read more here.
Keywords: wireless optical; communication; optical communication; ofdm ... See more keywords
OFDM tolerance to additive white Gaussian and laser phase noises in optical heterodyning systems accompanied by the feasible pilot-assisted equalization
Sign Up to like & getrecommendations! Published in 2020 at "Optical Review"
DOI: 10.1007/s10043-020-00587-8
Abstract: It is well known that the performance of orthogonal frequency division multiplexing (OFDM) is limited by phase noise, which depends on the laser linewidths for coherent-detection radio over fiber (RoF) systems. In this manuscript, we… read more here.
Keywords: phase; pilot; additive white; ofdm ... See more keywords
Analysis of OFDM system using DCT-PTS-SLM based approach for multimedia applications
Sign Up to like & getrecommendations! Published in 2018 at "Cluster Computing"
DOI: 10.1007/s10586-018-2140-0
Abstract: In last decade, wireless communications have observed a substantial development. However, wireless channels involve some disadvantages, like multipath fading, which make them hard to cope with. A modulation that efficiently deals with selective fading channels… read more here.
Keywords: ofdm system; analysis ofdm; ofdm; multimedia ... See more keywords
Assessment of the DC Bias to Mitigate the Clipping Noise in DCO-OFDM, ACO-OFDM; and Non-linear Distortion of DFB Laser Transmitted through Dispersive Single Mode Fibers in IM/DD Systems
Sign Up to like & getrecommendations! Published in 2017 at "Wireless Personal Communications"
DOI: 10.1007/s11277-017-4170-y
Abstract: An analytical investigation on the impact of the DC bias on the clipping noise and the laser non-linearity in Asymmetrically Clipped Optical Orthogonal Frequency Division Multiplexing (ACO-OFDM) and Direct Current—Biased Optical OFDM (DCO-OFDM) is performed.… read more here.
Keywords: clipping noise; dco ofdm; laser; aco ofdm ... See more keywords
Noncoherent Detection for Improving the Spectral Efficiency of OFDM-IM Systems
Sign Up to like & getrecommendations! Published in 2020 at "Wireless Personal Communications"
DOI: 10.1007/s11277-020-07373-4
Abstract: Today, Orthogonal Frequency Division Multiplexing (OFDM) is the most preferred and commonly used scheme for all communication systems. A new multicarrier technique called OFDM with Index Modulation (OFDM-IM) has been developed recently where the indices… read more here.
Keywords: index; ofdm gim1; ofdm; spectral efficiency ... See more keywords
Hybrid DCO-OFDM, ACO-OFDM and PAM-DMT for dimmable LiFi
Sign Up to like & getrecommendations! Published in 2019 at "Optik"
DOI: 10.1016/j.ijleo.2018.11.118
Abstract: Abstract This paper proposes a hybrid orthogonal frequency division multiplexing (OFDM) modulation termed as hybrid DC-biased asymmetrically-clipped pulse-amplitude-modulated OFDM (HDAP-OFDM) for providing power efficient communication and dimming control for light fidelity (LiFi) schemes. The proposed… read more here.
Keywords: aco ofdm; hdap ofdm; pam dmt; ofdm ... See more keywords
Performance analysis of precoded layered ACO-OFDM for visible light communication systems
Sign Up to like & getrecommendations! Published in 2019 at "Optics Communications"
DOI: 10.1016/j.optcom.2019.02.008
Abstract: Abstract Optical-orthogonal frequency division multiplexing (O-OFDM) is regarded as an effective scheme for intensity modulation and direct detection (IM-DD) based visible light communication (VLC) systems. State-of-the-art O-OFDM approaches complying with IM-DD constraints are; direct-current (DC)… read more here.
Keywords: aco ofdm; laco ofdm; ofdm; light communication ... See more keywords
Performance evaluation of fractional OFDM for extending transmission distance without reducing spectral efficiency
Sign Up to like & getrecommendations! Published in 2019 at "Optics Communications"
DOI: 10.1016/j.optcom.2019.04.059
Abstract: Abstract The performance of a fractional orthogonal frequency division multiplexing (FrOFDM) system is examined considering spectral efficiency (SE). While FrOFDM can reduce peak-to-average power ratio, which is a drawback in OFDM, its bandwidth is expanded.… read more here.
Keywords: ofdm; spectral efficiency; distance without; transmission distance ... See more keywords
A numerical assessment of an effective envelope-tracking semiconductor optical amplifier design for coherent-optical OFDM transmission
Sign Up to like & getrecommendations! Published in 2020 at "Optics Communications"
DOI: 10.1016/j.optcom.2019.124474
Abstract: Abstract The inherent nonlinear effects associated to Semiconductor Optical Amplifiers (SOAs) may translate into a transmission performance loss for non-constant envelope modulation formats. However, a variety of linearization schemes may be adopted for coping with… read more here.
Keywords: envelope; semiconductor optical; envelope tracking; ofdm ... See more keywords
Adaptive threshold reception scheme for OFDM-PWM-based visible light communication systems
Sign Up to like & getrecommendations! Published in 2018 at "Electronics Letters"
DOI: 10.1049/el.2018.5091
Abstract: The adaptive threshold reception scheme for OFDM pulse-width modulation (OFDM-PWM)-based visible light communication systems is presented. The authors first implement the adaptive threshold algorithm to modify the discrete OFDM-PWM sampling signal. Then, the unit periodic… read more here.
Keywords: reception scheme; ofdm pwm; ofdm; adaptive threshold ... See more keywords
Exploiting Cyclic Prefix for Turbo-OFDM Receiver Design
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Access"
DOI: 10.1109/access.2017.2734962
Abstract: In an orthogonal frequency division multiplexing (OFDM) system, the cyclic prefix (CP) has traditionally been not useful for data detection at the receiver. This paper presents a low-complexity turbo-OFDM receiver to exploit all of the… read more here.
Keywords: channel; ofdm receiver; ofdm; turbo ofdm ... See more keywords