نتایج جستجو برای: switching network
تعداد نتایج: 731887 فیلتر نتایج به سال:
In this paper, we analyze the monotone space of complexity of directed connectivity for a large class of input graphs G using the switching network model. The upper and lower bounds we obtain are a significant generalization of previous results and the proofs involve several completely new techniques and ideas. Acknowledgement: This material is based on work supported by the National Science Fo...
A new scalable scheduling strategy using cut through switching is proposed in this paper. Recursive and closed form expressions for speedup are found in heterogeneous single level trees and in homogeneous multilevel trees, respectively. The ratio of speedup using cut through switching to that using store and forward switching is presented so as to illustrate the amount of improvement in speedup...
In this paper Wavelength Switching (WS), Optical Burst Switching (OBS) and Optical Packet Switching (OPS) network models are compared. The next future is for WS networks but there is a big investigation effort for development of both OBS and OPS networks, which seem to be further successors in the optical networks world. At the beginning, a brief distinction between considered switching paradig...
Smartphones usually experience problems in the form of both connection interruption and communication interruption time when switching between networks during communication. These problems reduce the convenience of using a smartphone. We propose a method based on a seamless handover system through cooperation with NTMobile (Network Traversal with Mobility), which realizes mobility by enabling s...
This paper describes recent research activities and results in the area of photonic switching carried out within the Virtual Department on Switching (VDS) of the European e-Photon/ ONe Network of Excellence. Contributions from outstanding European research groups in this field are collected to offer a platform for future research in optical switching. The paper contains the main topics related ...
To allow for wireless communications among a specific geographic area, base stations of communication network must be deployed to allow sufficient radio coverage to every mobile users. The base stations, successively, must be linked to a central hub called the MSC (mobile switching centre). The mobile switching centre allow connectivity among the PSTN (public switched telephone network) and the...
All-optical multistage interconnection networks are desirable for overcoming the limitations of optical signal regeneration in switching systems. We present a new implementation of the perfect-shuffle interconnection pattern that is coupled with an all-optical switching element, forming a complete stage of a multistage network. Switching is performed with birefringent calcite crystals and a fer...
Temporal network, whose topology evolves with time, is an important class of complex networks. Temporal trees of a temporal network describe the necessary edges sustaining the network as well as their active time points. By a switching controller which properly selects its location with time, temporal trees are used to improve the controllability of the network. Therefore, more nodes are contro...
We present an ILP model for dimensioning optical networks that support wavelength and sub-wavelength switching. Results indicate significant reductions in cost and node-complexity with such multi-granular networks. Introduction Future networks will likely consist of some form of alloptical networking, implying data remains in optical form end-to-end. An apparent difficulty is that a single infr...
Banyan networks are really attractive for serving as the optical switching architectures due to their unique properties of small depth and absolute signal loss uniformity. The fact has been established that the limitations of blocking nature and the nonavailability of proper connections due to non-rearrangeable property can be easily ruled out using electro-optic MZI switches as basic switching...
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