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We experimentally generated single wavelength 80 Gbit/s signals at 1952 nm with intensity modulated filter bank multicarrier scheme. Its transmission over 100m solid core SMFs was demonstrated with BER below FEC limit of 3.8 × 10−3.
A high-speed traveling wave electro-absorption modulator based on grapheme-micro fiber is designed. Graphene modulates the optical transmission intensity by changing its fermi level under different applied voltages. Graphene has an extremely high carrier mobility which has a potential electrical bandwidth of 500 GHz. However, the bandwidth of the state-of-art graphene based modulator is limited by...
Advanced modulation formats with intensity modulation and direct detection (IM/DD) have shown promise in a short-reach optical communication system like data center interconnect. However, the conventional fiber transmission spectral window is mostly located at 850, 1310, and 1550 nm. Here, we experimentally demonstrated an amplifierless IM/DD link at the 2-μm spectral band. The signal is encoded with...
Networked application is in the stage of rapid development. Current paradigm of application running is low in efficiency and profit because of blurred boundary of responsibility and coarse use of resource. This paper presents SORA, a network based service oriented resource architecture. With clearly defined responsibility and service oriented paradigm, different roles in the architecture focus on...
AMR-WB (Adaptive Multi-Rate Wideband) codec has been standardized for wideband speech conversational applications and has widely potential applications in the migration of wireless or wired networks toward a single converged IP network. Multiple description coding (MDC) is frequently used to resist packet loss for Voice over IP (VoIP). However, today's MDC schemes for AMR-WB are designed lacking of...
Traditional video quality assessment systems are very difficult to give an overall evaluation of video quality. In this paper a multifunctional video quality assessment system is proposed. It not only provides the capability of full-reference video quality assessment and no-reference video quality assessment, but also has the functions of encoding delay analysis, encoding complexity analysis and encoding...
The diversity of session control protocol, media processing mechanism and channel condition makes it difficult to have universal communication in heterogeneous networks. In this paper we propose a service-oriented communication system which can support different types of services, e.g., session control service, media processing service and network adaptation service. The architecture of the proposed...
With the heterogeneous threats of network ongoing, the problems of network security become more and more intractable, besides, the compatibility issues of security protection-equipments are emerging in endlessly. Thus, the unified treat management has been a research hotpot currently. In this paper, based on analyzing the status quo of UTM (unified treat management), as well as the performance detects...
We discuss the influence of the seams between the liquid crystal pixels on the signals that transmits through the LCoS-based switching node in the elastic optical path network. It is found that the seams will bring repetitions of the signal in time domain. Also, the spacing and amplitudes of these repetitions are determined respectively by the spectral spacing and the shapes of the frequency slots...
Firstly, gave a brief comparison of the survivability technologies of IP layer and optical layer. Furthermore, through the close study of related researches in various multi-layer survivability of IP over Optical network, the conclusions of the consonant environment for various multi-layer survivability was drawn from the view of cost and availability. At the end of this paper, further framed the...
In this paper, the platform was the software of the real-time scenes of driver—Vega. As an example to the Huang Dao Campus of Shandong University of Science and Technology, this paper elaborated the method of developing a smart system based on Vega API. It focused on the optimization technology of 3d scene model data and fidelity during the construction of three-dimensional scene and the way of setting...
Resisting spam in tagging system is very challenging. This paper presents DSpam, a novel spam-resistant tagging system which can significantly diminish spam in tag search results with users' reliabilities. DSpam client groups other users into unfamiliar users and interacted users according to the fact whether the client has interacted with such users. For an unfamiliar user, the client computes his...
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