The authors report an experimental investigation on the measurement of the available bandwidth for the users in gigabit passive optical networks (GPON) and the limitations caused by the Internet protocols, and transfer control protocol (TCP) in particular. We point out that the huge capacity offered by the GPON highlights the enormous differences that can be showed among the available and actua...

The monitoring of control loop performance in building automation is important for decreasing the maintenance costs. Passive monitoring with network analyzers is inexpensive and does not influence the network load. However, control signals that are not transmitted over the network are unobservable. This paper purposes an approach to the reconstruction of missing control signals and the computat...

conventional passive distribution networks are changing to modern active distribution networks which are not radial. conventional load flow methods should be modified for new distribution networks analysis. in modern distribution networks distributed generation (dg) units are embedded with conventional and/or renewable resources. dg units are generally modeled as pv or pq nodes which inject ...

The emergence of new services in the cloud computing era has made smooth service migration an important issue in access networks. However, different types of equipment are typically used for the different services due to differences in service requirements. This leads to an increase in not only capital expenditures but also operational expenditures. Here we propose using a service adaptive appr...

This paper proposes a pipelined architecture for a dynamic bandwidth allocation (DBA) in 10-gigabit-capable passive optical networks (XG-PONs). In the proposed architecture, the DBA operation is performed in multiple stages for high energy efficiency. Also, the proposed architecture forwards requests to next stages to obtain high performance. Using simulations, we evaluate performance of the pr...

Exoskeletons can be utilized for rehabilitation purposes as well as for assistance and augmentation of motion of patients with disabilities, workers, the elderly and even healthy people. Compared to powered solutions, unpowered passive exoskeletons have been shown to have significantly higher chances of end user acceptance, because of simpler design, no complex electronics and potentially lower...

As an inexpensive, simple, and scalable solution for broadband access, Ethernet passive optical networks (EPONs) have the capability of delivering integrated broadband services to the end users. A critical issue of EPONs is the utility of a shared upstream channel among the local users, and thus an efficient bandwidth allocation mechanism is required to facilitate statistical multiplexing among...

L m 2-stable digital-control networks for multiple continuous passive plants. A constructive method is presented in which L m 2-stability can be guaranteed for networked control of multiple passive plants in spite random time varying delays and data dropouts. The passive plants are interfaced to a wave variable based passive sampler (PS) and passive hold (PH) which allows a passive digital cont...

In this paper we consider linear, lumped, finite networks composed of interconnections of time-variable and passive resistances, capacitances, inductances ~ gyrators and transformers. We assume an impedance matrix port description of the network is given and solve the problem of synthesizing the impedance, that is, we determine a set of passive elements and a scheme of interconnection which yie...