NRN147 - Multilevel Subcarrier Index-Power Modulated Optical OFDM for IMDD PON Systems
IEEE Photonics Journal
In a previously published transmission technique known as subcarrier indexpower modulated optical OFDM (SIPM-OOFDM), a new subcarrier index-power (SIP) information-bearing dimension is introduced to enable SIPM-OOFDM to carry one extra information bit per subcarrier. As a significantly improved variant of SIPM-OOFDM, in this paper, a novel signal transmission technique termed multilevel subcarrier index-power modulated OOFDM (ML-SIPM-OOFDM) is proposed and extensively explored for the first time.
NRNC20 Fuzzy Hierarchal Approach-Based Optimal Frequency Control in the Great Britain Power System
Electric Power Systems Research
A design of fuzzy-based hierarchal approach is proposedto improve the frequency control in the power system. The simplified Great Britain (GB) frequency control model, was used as a single bus machine. A new simple tuning method is proposed with the aid of the conventional PID controller gains.The same gains are used to feed the fuzzy controller in the same loop without re-tuning the fuzzy gains. This method allows the fuzzy structure to supplement the conventional control rather than replacing it.
NRN024 Experimental Demonstration of Upstream Transmission in Digital Filter Multiple Access PONs With Real-Time Reconfigurable Optical Network Units
The Optical Society
In this paper, for the first time to our knowledge, multipoint-to-point upstream signal transmission in intensity-modulation and direct-detection (IMDD) DFMA PONs is experimentally demonstrated using two real-time, reconfigurable, optical orthogonal frequency division multiplexing-modulated ONUs and an offline optical line terminal.
NRN038 - A new Jameson-Schmidt-Turkel Smooth Particle Hydrodynamics algorithm for large strain explicit fast dynamics
This paper presents a new Smooth Particle Hydrodynamics (SPH) computational framework for large strain explicit solid dynamics.
NRN024 Multiple Channel Interference Cancellation of Digital Filter Multiple Access PONs
In this paper, a DFMA channel interference cancellation (DCIC) technique is, for the first time, proposed and extensively investigated, to significantly improve the downstream and upstream performance of the IMDD DFMA PONs. A comprehensive DCIC theoretical model is developed, and through fitting with experimental measurements, the developed theoretical model is rigorously verified and a set of accurate transceiver/system parameters is identified.
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