Unipolar-pulse amplitude modulation frequency division multiplexing for visible light communication systems
نویسندگان
چکیده
منابع مشابه
Superposed pulse amplitude modulation for visible light communication.
We propose and experimentally demonstrate a novel modulation scheme called superposed pulse amplitude modulation (SPAM) which is low-cost, insensitive to non-linearity of light emitting diode (LED). Multiple optical pulses transmit parallelly from different spatial position in the LED array and overlap linearly in free space to realize SPAM. With LED arrangement, the experimental results show t...
متن کاملQuadrature Amplitude Modulation All Optical Orthogonal Frequency Division Multiplexing-dense Wavelength Division Multiplexing-optical Wireless Communication System under Different Weather Conditions
This paper proposes an analytical model for evaluating the performance of dense wavelength division multiplexing (DWDM) for all optical orthogonal frequency division multiplexing (AO-OFDM) optical wireless channel. The investigated performance for proposed system is evaluated for the parameters bit error rate (BER) and Q factor .The constellation diagrams, and bit error rate (BER) of the recei...
متن کاملAn Efficient Hierarchical Modulation based Orthogonal Frequency Division Multiplexing Transmission Scheme for Digital Video Broadcasting
Due to the increase of users the efficient usage of spectrum plays an important role in digital terrestrial television networks. In digital video broadcasting, local and global content are transmitted by single frequency network and multifrequency network respectively. Multifrequency network support transmission of global content and it consumes large spectrum. Similarly local content are well ...
متن کاملQuadrature Amplitude Modulated Codes for Orthogonal Frequency Division Multiplexing Applications
The development of next generation of high-speed mobile communication systems requires cost-effective transmission techniques. Orthogonal Frequency Division Multiplexing (OFDM) is a transmission scheme that has gathered much attention lately for its high performance at comparably low complexity. It has already been adapted in the European radio(DAB)and TV(DVB-T)standards, and IEEE 802.11a. Desp...
متن کاملLED Light Emitting Diode MAC Media Access Control OFDM Orthogonal Frequency-Division Multiplexing OOK On-Off Keying PHY Physical Layer UV Ultraviolet VIS Visible Light Spectrum VLC Visible Light Communication VPPM Variable Pulse Position Modulation WPAN Wireless Personal Area Network
Abstract--The use of the LED technology has been increasing in the last years due to the advantages of this technology with respect to the current lighting technologies; one of these advantages is his rapid on-off commutation ability allowing the data transmissions using the light as channel. In this work we will determine the state of art of Visible Light Communication, in order to obtain en...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Optical Engineering
سال: 2020
ISSN: 0091-3286
DOI: 10.1117/1.oe.59.9.096108