The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In this work we investigate the effects of multiple access interference (MAI) and polarization mode dispersion (PMD) on two-dimensional wavelength-hopping time-spreading optical code paths. Analytical results show quantitative evaluation of the MAI and PMD effects and constraints at the outage probability. The contribution of each these sources of interference are used to help choose design of code...
In this work we investigate the performance of optical packet/burst switched (OPS/OBS) architectures connected as mesh and as ring topologies, for future optical metropolitan networks. Network throughput and protection to link failure under uniform traffic distribution for all nodes is investigated in order to evaluate the sensitivity of OPS/OBSN performance. Our results are based on analysis of simulations...
In this paper we approach the problem of delay in Optical Packet/Burst Switched Networks (OPSN). Based in a specific proposal of architecture for these networks, where we have electronic buffers out of the optical layer, we analyze the average delay as function of the network operation, showing that mesh networks with larger number of nodes and the increasing of electronic buffers storage capacity...
We present in this paper the study of electronic buffering in an innovative architecture for optical packet/burst switched network (OPSN). This architecture comprises optical bufferless nodes with electronic packet queuing out of the optical layer, deflection routing to perform contention resolution and fully connected mesh topologies under uniform traffic distribution. We demonstrate, by means of...
Applications with optical packet switching (OPS and OBS) offer potentially large capacity due to significant increase in optical channel granularity and use. Thus, simulation studies on optical packet/burst switching node architectures, as presented here, are an important strategy to evaluate new designs, joined with provision of quality of service (QoS) and differentiated traffic support. This work...
This work presents an analysis concerning the effects of iteration between electromagnetic fields and some kinds of biological tissues. In this regard, we design a routine based on the finite-difference time-domain (FDTD) method to estimate the electromagnetic field in 3D environments for biological tissues. Our research of electromagnetic field effects has focused on the concept of specific absorption...
This paper proposes a methodology to compare scheduling algorithms for congestion resolution in optical burst switching or optical packet switching networks, focusing on the issue of wavelength conversion capabilities. The performance of such algorithms when full wavelength conversion is available at the switching nodes are compared with the case of conversion capabilities over a limited range of...
In this work we develop a performance evaluation for optical packet switching network (OPSN) architecture and optimized mesh topology with (OMT) comprising 2times2 optical bufferless nodes configuration. The analysis is carried out with analytic modeling and simulation methods using as basis for comparison the Manhattan Street topology with 16 nodes (MS-16). This work comes to validate our simulation...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.