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Two system transmission experiments are reported which indicate the feasibility of transmitting an aggregated speed of >200 Gb/s over a single next-generation wide-band multimode optical fiber (NG-WBMMF) using a shortwave wavelength division multiplexing (SWDM) and a four-level pulse amplitude modulation (PAM4), using optics rated for ${\text{25 Gb/s}}$ NRZ operation. The first experiment leverages...
In the process of assigning peak-peak tasks to users, there are some problems such as uncertainty of assignment standard, mismatch of task and actual response. In order to provide more accurate distribution, so as to provide suggestion of implementing staggering power consumption to power grid enterprises, this paper uses the AHP method to evaluate the user peak load staggering potential. It selects...
The existing proxy re-signature schemes are mostly constructed in traditional cryptosystems or identity-based cryptosystems. The former has the problem of complexity certificate management and overhead signature verification time, while the latter has the problem of key escrow security. A proxy re-signature scheme without certificates is proposed. The scheme is proved to be existentially unforgeable...
Fabrication results of three types of few mode fiber are presented including a new large area fiber. Splice performance, including splice loss and mode conversion, of the few mode fibers are evaluated.
The large amount of data collected in the Internet of Things (IoT) need to be transmitted to servers for processing in order to provide various services. Due to the limited amount of resources in IoT, including network bandwidth, node processing abilities, and server capacities, congestion control in IoT plays a crucial role for meeting service performance requirements. In this paper, we propose a...
Problem statement: The next few years, the world towards a high degree of competitiveness of industrial enterprises in the development of business models, competition and cooperation, the flexibility of management changes in a timely manner, on the business and the contractor's use of collaborative software technology to create competitive advantage and set up inter — communication platform to develop...
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