A5089711203- Optical Network Technologies
- Advanced Photonic Communication Systems
- Advanced Optical Network Technologies
- Advanced Fiber Optic Sensors
Shanghai University
2017-2022
In this paper, a fair resource allocation mechanism based on user satisfaction in multiple optical line terminal (multi-OLT) virtual passive network (VPON) is proposed. By introducing functions, the of users can be quantified. presenting multi-OLT VPON metro-access (MAON), different priority services effectively handled separately. Based satisfaction, called double dynamic bandwidth scheme (DFDBAS) DFDBAS combination two algorithms: wavelength (WFA) algorithm and timeslot (TFA) algorithm....
In this paper, a three-dimensional grid architecture supporting discretionary direct communication among optical network units (ONUs) is proposed. By setting up one $N \times N\hspace{3pt}$N×N arrayed waveguide grating (AWG) and two coarse wavelength division multiplexers in the remote node (RN), optimal path selection of ONUs can be carried out. At same time, construction RN simple. combining with three-band allocation, downstream upstream signals as well direct-communication simultaneously...
Mode transformation algorithm and universal control mechanism for multiple subsystems in metro-access optical network are proposed to realize a multisubsystem-based virtual passive network. By combining the characteristics of different multiplexing technologies, flexible node (FCN) is constructed. defining functional modules operating table mode FCN, created asynchronous unified achieved. introducing step-variable knapsack model tag matrix, units designed load balancing between improve...
Summary In this paper, a mode transformation algorithm based on traffic prediction in virtual multiple optical line terminal (OLT) passive network (PON) is proposed. By proposing exponential smoothing weight update (WU‐ESA), user predicted well. WU‐ESA combination of two algorithms: (ESA) and genetic (GA). The ESA optimized by GA real‐number encoding. setting periods, part can be separated effectively. presenting elastic packing (EPA), the load balance problem multi‐OLT PON solved. EPA...
Summary Direct communication between optical network units (ONUs) provides the opportunity to reduce substantial latency among two communicating ONUs, which is very significant for next generation networks. In this paper, an expandable intersection‐ring architecture support direct ONUs proposed. By adopting tunable fiber Bragg gratings (FBGs), peer‐to‐peer of can be achieved. utilizing cyclic routing property arrayed waveguide grating (AWG), upstream/downstream together with carried out...
In this paper, a dynamic bandwidth allocation (DBA) algorithm based on differentiated service cycle (DSC) in multiple (multi-service) hybrid Virtual Passive Optical Network (VPON) is proposed. The DSC introduces neural network prediction and improves the polling mechanism between Unit (ONU) Line Terminal (OLT). can be applied to multi-service VPON scenarios. By introducing network, problem that traditional methods only predict one traffic will solved. establishing separation of report cycle,...