Results 11 to 20 of about 4,646,007 (214)
Comparison of traffic performance of QPSK and 16-QAM modulation techniques for OFDM system
Journal of Telecommunications and Information Technology, 2005 Orthogonal frequency division multiplexing (OFDM) provides better spectral efficiency than frequency division multiplexing (FDM), while maintaining orthogonal relation between carriers; hence traffic is better carried by OFDM than FDM within the same ...
Imdadul Islam, Siddique Hossain
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Automatika, 2023 High data rates, extremely low power consumption, and minimal end-to-end latency are considered to be mandatory requirements for 5G wireless networks. Rapid improvements in design and performance of 5G physical layer waveforms have become necessary.
S. Selvin Pradeep Kumar +2 more
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Comparing the Performance of OFDM and OCDM-based Visible Light Communications: Numerical and Experimental Analysis [PDF]
Journal of Microwaves, Optoelectronics and Electromagnetic Applications, 2023 Numerical and experimental analysis of visible light communication (VLC) systems based on orthogonal chirp division multiplexing (OCDM) and orthogonal frequency division multiplexing (OFDM) are presented in this paper.
Augusto C. F. Peterle +5 more
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Improving the chromatic dispersion tolerance in long-haul fibre links using the coherent optical orthogonal frequency division multiplexing [PDF]
, 2010 Numerical simulations of the coherent optical orthogonal frequency division multiplexing modems are undertaken to investigate the effect of the adaptive modulation, the number of sub-carriers, the cyclic prefix (CP) length, the clipping ratio ...
Ghassemlooy, Zabih +5 more
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Multiband Real-Time Coherent Optical OFDM Reception up to 110 Gb/s with 600-km Transmission
IEEE Photonics Journal, 2010 We demonstrate field-programmable gate array (FPGA)-based multiband orthogonal frequency-division multiplexing (OFDM) signal reception after 600-km standard single-mode fiber (SSMF) transmission and 400-ps differential-group delay (DGD) at 110-Gb/s.
Simin Chen, Yiran Ma, William Shieh
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, 2007 Orthogonal Frequency Division Multiplexing (OFDM) has been employed in numerous wireless standards. However, the performance of OFDM systems is degraded by both the Carrier Frequency Offset (CFO) and the Phase Estimation Error (PER).
Liu, X., Hanzo, L.
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Sensors, 2023 This paper investigates the degradation caused by interference resulting from cyclic prefix violation and symbol timing offset in narrowband power line communication systems. In this sense, it presents a unified formulation from which Hermitian symmetric
Túlio Fernandes Moreira +3 more
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Super-Orthogonal Block Codes with Multichannel Equalisation and OFDM in Frequency Selective Fading
EURASIP Journal on Wireless Communications and Networking, 2010 Super-orthogonal block codes in space-time domain (i.e., Super-orthogonal space-time trellis codes (SOSTTCs)) were initially designed for frequency nonselective (FNS) channels but in frequency selective (FS) channels these super-orthogonal block codes ...
O. Sokoya, B. T. Maharaj
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Sensors, 2018 Non-orthogonal multiple access (NOMA) systems are being considered as candidates for 5G wireless systems due to their promise of improved spectral efficiency.
Jayanta Datta, Hsin-Piao Lin
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Photonics, 2022 Orbital angular momentum (OAM) with mutually orthogonal advantage attribute to break through the high capacity and long-reach transmission limited in the classical passive optical network (PON). Employing Laguerre Gaussian (LG) mode as the orthogonal OAM
Qingan Ding +8 more
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