Abstract:
Provided herein is a communication method using MIMO (Multiple-Input Multiple-Output) technology for communicating with a terminal included in each of a plurality of base station cells using a communication apparatus, the method including calculating, by the communication apparatus, the number of terminals included inside a base station cell; generating, by the communication apparatus, pilot signals corresponding to the calculated number of terminals; and allocating, by the communication apparatus, the pilot signals to a terminal that may maximize a network capacity based on the generated pilot signals.
Abstract:
Provided herein is a sentence hiding and displaying system comprising: an image creating interface receiving an input of information on an original image, a plurality of sentences corresponding to the original image, and a language that needs to be hidden; an image creator configured to determine a sentence that needs to be hidden based on the plurality of sentences and the language that needs to be hidden, and to create on the original image an image where the sentence that needs to be hidden is hidden; a sentence display interface configured to receive an input of information on a language selected by a user; and a sentence extractor and displayer configured to parse a sentence expressed in the selected language of among sentences that need to be hidden based on the hidden image and the selected language, and to display the sentence expressed in the selected language.
Abstract:
Provided herein is a PLC synchronization method including allocating a predetermined value with respect to a plurality of modulation symbols depending on whether sum of squared magnitude of in-phase component and orthogonal component is arranged in a predetermined range, calculating first moving sum and second moving sum of a value allocated to the plurality of modulation symbols, and performing PLC (physical layer link channel) synchronization based on the plurality of modulation symbols having maximum value of the first moving sum and the second moving sum.
Abstract:
A stretchable electronic device includes a flexible substrate, a conductive fiber pattern formed on the flexible substrate, the conductive fiber pattern having a repetitive circular structure, and a graphene material attached to the conductive fiber pattern.