Abstract: A microlens array-based ultrathin microscope is provided. The microlens array-based ultrathin microscope includes a filter unit configured to selectively transmit fluorescence manifested in a measurement sample, and an image unit configured to acquire an image from light transmitted by the filter unit. The filter unit is formed to be in contact with or spaced apart from one surface of a transparent substrate, and the image unit includes a microlens array formed on an opposite surface to the transparent substrate in which the filter unit is formed, and an image sensor configured to collect image information of the microlens array.

Abstract: A hair dye dispenser according to an embodiment of the present invention includes a housing having an opening hole formed on one side of which a hair dye is provided, a plurality of cartridges disposed inside the housing and accommodating at least one dyeing material, a main body in which the plurality of cartridges are rotatably disposed, a main motor for rotating the main body so that a first cartridge of the plurality of cartridges is located adjacent to the opening hole, a discharge module for discharging the dyeing material contained in the first cartridge, and an accommodating body in which a basket accommodating the dyeing material discharged by the discharge module is placed, wherein the discharge module may include an elevating body that pressurizes the first cartridge when moving up and is separated from the first cartridge when moving down.

Abstract: The inventive concepts provide a temperature controller for performing a comparative measurement process and a sensing calibration process without separating a temperature sensor and an input channel, if a comparative measurement process and a sensing calibration process of a temperature sensor for controlling a temperature of a semiconductor manufacturing facility are performed.

Abstract: A static electricity visualization apparatus capable of visually identifying a measured level of static electricity is provided.

Abstract: A source node includes a topology information extractor configured to acquire information of a channel state between nodes included in a multicast network, and extract topology information of the multicast network. The source node further includes a relay node selector configured to select, from the nodes, a relay node to relay a packet transmitted from the source node, based on the topology information.

Abstract: Provided are a base station and a plurality of member nodes for transmitting and receiving network coding based multicast traffic. The base station may transmit multicast traffic, and the member node may transmit an acknowledgement (ACK) signal based on received multicast traffic. A determination made be made as to whether the multicast traffic is to be retransmitted, based on a number of member nodes transmitting ACK signals.

Abstract: A communication method and apparatus for cancelling interference are provided. The communication apparatus includes an active element configured to receive a first signal and a parasitic element configured to receive a second signal. A third signal is generated by cancelling interference in the first signal using the second signal.

Abstract: A cooperative communication system is provided. The cooperative communication system includes a transmitter that generates a codeword from data blocks based on a long message encoding scheme, and multicasts a signal including the codeword; relays, each relay configured to receive the multicasted signal, encode the multicasted signal using a encoding scheme independent from encoding schemes of other relays to generate a random-mapped signal of the data blocks, and relay the random-mapped signal of the data blocks; and a receiver that receives signals relayed by the relays, and generates the data blocks from the signals based on a joint decoding scheme.

Abstract: A method of secure communication in a transmitter, includes determining a method of generating a training sequence that is shared with a receiver. The method further includes generating the training sequence based on the method of generating the training sequence, and secret information. The method further includes communicating with the receiver based on channel information derived from the training sequence.

Abstract: A radio transceiver and corresponding method include a transmission unit configured to transmit an uplink signal to a base station. A receiving unit is configured to receive a relay signal, which comprises the uplink signal and a downlink signal received from the base station. An extraction unit is configured to extract the downlink signal from the relay signal based on the uplink signal.

Abstract: A method and apparatus to control interference in a relay node are provided and include simultaneously receiving a symbol from source nodes, adjusting channel coefficients; and relaying the symbol to destination nodes with adjusted channel coefficients. The simultaneously receiving and the relaying are performed during a symbol transmission process between the source and destination nodes.

Abstract: Methods and apparatuses for transmitting data based on cooperation of member nodes belonging to a multicast group is provided. The method may include transmitting multicast packets through a first communication network to member nodes belonging to a multicast group and the member nodes receiving the same multicast packets; and retransmitting the multicast packets upon determination that no member node has completed reception of the multicast packets.

Abstract: A communication method of an access point (AP) for retransmission of a multicast packet in a network including the AP and terminals, includes selecting a candidate terminal to be used to retransmit the multicast packet, from the terminals, and retransmitting the multicast packet, using the candidate terminal.

Abstract: A communication method of a macro base station, a macro terminal, a micro base station, and a micro terminal determines an interference control scheme for each interference condition between a micro cell and a micro cell and between a macro cell and a micro cell in a hierarchical cellular network, and controls interference in the hierarchical cellular network where a detailed operation for each determined interference control scheme, a message associated with the detailed operation, and a resource management scheme are defined.

Abstract: Provided are a communication method and apparatus for device-to-device (D2D). More particularly, the communication method for D2D includes configuring a network topology using at least one cooperating base station to communicate among devices included in multiple heterogeneous cells, creating an association between multiple device pairs and at least one base station based on configuring the network topology, and determining a cooperation context for communication among the multiple device pairs is provided. The communication apparatus carries out such a method.

Abstract: A method of controlling interference of relay nodes and node pairs in a multi-hop network, includes relaying signals received from source nodes among the node pairs to destination nodes pairing with the source nodes, and cancelling a part of interference signals between the node pairs by controlling channel coefficients of the relay nodes. The destination nodes are configured to cancel residual interference signals among the interference signals, using the signals received by the destination nodes.

Abstract: A method of multi-hop cooperative communication includes recognizing a plurality of relays capable of cooperating with one another to amplify or quantize and forward mixed signals received from a plurality of different nodes, selecting a transmission mode from a direct mode for transmission from a base station directly and a cooperation mode for transmission from the base station via the plurality of relays, transmitting data from the base station directly to a terminal through a first radio resource in the direct mode in response to the selected transmission mode being the direct mode, and transmitting data from the base station to the terminal via the plurality of relays through a second radio resource in the cooperation mode in response to the selected transmission mode being the cooperation mode.

Abstract: A Relay Station (RS), and a corresponding method of performing scheduling at an RS in a mobile communication network are provided. The RS and corresponding method receive channel state information and scheduling information from an apparatus associated with the RS, the scheduling information defining scheduling parameters for downlink transmission of data. The RS and corresponding method also obtain updated scheduling parameters based on the scheduling information, the channel state information, and an amount of the data.

Abstract: Provided is a method and a terminal for a multi-hop network. The method includes determining whether channel information is necessary to transmit data processed based on a transmission scheme used in the multi-hop network and outputting a result indicative thereof. The method includes configuring channel information based on the transmission scheme, based on the result. The method further includes transmitting the configured channel information and the data processed using the configured channel information.

Abstract: A method and apparatus to control interference in a relay node are provided and include simultaneously receiving a symbol from source nodes, adjusting channel coefficients; and relaying the symbol to destination nodes with adjusted channel coefficients. The simultaneously receiving and the relaying are performed during a symbol transmission process between the source and destination nodes.