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We report the design and the fabrication of a low differential-mode-group-delay 6-LP-mode fiber with a micro-bending sensitivity lower than that of standard SMFs. This fiber also exhibits low mode coupling which improves differential-mode-group-delay compensation.
50μm-diameter graded-index core multimode fibers can be adapted to mode-division-multiplexed transmissions that use multiple-input-multiple-output digital signal processing and selective mode multiplexing. We realize and characterize such fibers and compare them to low-differential-mode-group-delay few-mode fibers.
An approach to multi attribute group decision making with intuitionistic fuzzy setting has been described. In the present article, the application of proposed ranking method based on value and ambiguity has been studied. A multi attribute group decision making problem has been studied with an illustrative numerical example.
In this paper, a multi-channel cognitive radio network is considered in which both primary users (PUs) and secondary users (SUs) can sense and make use of idle channels, i.e. both kinds of users are cognitive. We study a situation where a PU, while transmitting, can sense idle channels with a better transmission rate than the one currently occupied and can switch to such a better channel. This switching...
IPTV has been hailed as a “killer app” of the Internet for a long time, but it has yet to really make a major breakthrough, due to various technical and political reasons. The recent influx of community-driven video distribution has re-actualized the research into efficient distribution methods for streaming video. In this paper, we suggest a number of modifications and extensions to the BitTorrent...
The trench-assistance concept has proven its efficiency for bend-insensitive single-mode fibers. Here, we show how it applies to multi-mode fibers for which bend losses can also be significantly decreased while ensuring full compliance with OM3 and OM4 standards.
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