Abstract: An electronic device includes a memory storing software including an application, an inter-process communication (IPC) module supporting communication between processes, a first communication driver, and a second communication driver, and a processor executing the software stored in the memory. The processor is configured to determine, using the IPC module whether a destination of the data is inside the electronic device or outside the electronic device, if a transmission of data is requested from the IPC module by the application, to transmit the data through the first communication driver if the destination of the data is inside the electronic device, and to transmit the data through the second communication driver if the destination of the data is outside the electronic device.

Abstract: Provided are a multi-input multi-output system which overcomes a disadvantage that optimal receiving performance cannot be maintained according to an installation environment and a performance change of a receiver when a receiving module is configured by using a fixed attenuator and a fixed phase in a line-of-sight multi-input multi-output system configuration and analogously controls an interference removing module of a receiver including a variable attenuator and a phase shifter which are controllable to enhance a receiving performance and increase frequency efficiency, in order to maximize a signal-to-interference ratio of each path and an operating method thereof.

Abstract: Disclosed is a communication method using interference alignment in a wireless local area network (WLAN). An access point (AP) according to one embodiment may receive first channel information between a station associated with the AP and the AP and second channel information between the station and a neighboring AP to perform interference alignment in cooperation with the AP from the station, and perform interference alignment based on the first channel information and the second channel information.

Abstract: An electronic device, a method of displaying an image by the electronic device, and a non-transitory computer-readable storage medium are provided. The electronic device includes a display and a processor functionally connected to the display, wherein the processor is configured to display a first region of a three-dimensional (3D) space according to a first rendering scheme, when a preset condition is met, determine a region of interest and a region of no interest, display the region of interest on the display according to the first rendering scheme, and display the region of no interest on the display according to a second rendering scheme.

Abstract: Provided is a frame transmission method of interference alignment (IA) and controlling, the method including calculating a channel matrix of a basic service set (BSS) by measuring channel information between an access point and a user terminal, performing singular value decomposition (SVD) based on the calculated channel matrix, selecting a beamforming vector in consideration of an interference amount associated with another access point based on the SVD performed by the channel matrix, and calculating a leakage interference (LIF) value based on the selected beamforming vector.

Abstract: Provided are a frame transmission method performed in an access point (AP), a frame reception method performed in a terminal, and an AP. The frame transmission method performed in an AP includes acquiring a channel for transmitting a first data unit of a first terminal, when a data unit to be transmitted to at least one terminal other than the first terminal is in the AP, generating a physical layer convergence procedure (PLCP) protocol data unit (PPDU) including the first data unit and the data unit to be transmitted to the at least one terminal, and transmitting the PPDU to the first terminal and the at least one terminal. Accordingly, it is possible to improve the performance of a wireless local area network (WLAN).

Abstract: Provided is a method of generating a pilot pattern capable of perform adaptive channel estimation, and a method and apparatus of a base station and a method and apparatus of a terminal using the pilot pattern. The pilot pattern selects pilot symbol positions based on distances from pilots of previous orthogonal frequency division multiple access (OFDMA) symbols to a subcarrier position of a current OFDMA symbol in the frequency domain and the time domain, so that a low pilot density is maintained so as to effectively transmit data, and stable channel estimation performance can be obtained even in a bad channel environment. In addition, the minimum burst allocation size is determined according to the channel environment between the base station and the terminal, guaranteeing channel estimation performance suitable for the channel environment, and improving granularity, channel estimation latency, and channel estimation memory size.

Abstract: Provided is a frame transmission method of interference alignment (IA) and controlling, the method including calculating a channel matrix of a basic service set (BSS) by measuring channel information between an access point and a user terminal, performing singular value decomposition (SVD) based on the calculated channel matrix, selecting a beamforming vector in consideration of an interference amount associated with another access point based on the SVD performed by the channel matrix, and calculating a leakage interference (LIF) value based on the selected beamforming vector.

Abstract: Disclosed is a communication method using interference alignment in a wireless local area network (WLAN). An access point (AP) according to one embodiment may receive first channel information between a station associated with the AP and the AP and second channel information between the station and a neighboring AP to perform interference alignment in cooperation with the AP from the station, and perform interference alignment based on the first channel information and the second channel information.

Abstract: The present invention relates to a method and a system for discovering an adjacent access point between multi-band wireless LAN access points, and to a method and a system for discovering an adjacent neighboring access point between access points in order to solve an interference problem between the access points in a wireless LAN using multi-bands.

Abstract: Provided are a touch sensing apparatus and a method of driving the same. The touch sensing apparatus includes a signal source configured to output a driving signal, a touch panel configured to be driven by the driving signal output by the signal source and output a current signal generated using the driving signal, a charge amplifier configured to convert the current signal output by the touch panel into a voltage signal, and a controller configured to control the charge amplifier to be periodically reset.

Abstract: An apparatus for interference alignment in a cellular communication network includes a preparation message receiver configured to receive interference alignment preparation messages from receivers; a grouper configured to group the receivers with reference to the received interference alignment preparation messages according to an interference alignment algorithm; and an interference aligner configured to perform interference alignment based on a bandwidth secured for the receivers.

Abstract: Provided are a frame transmission method performed in an access point (AP), a frame reception method performed in a terminal, and an AP. The frame transmission method performed in an AP includes acquiring a channel for transmitting a first data unit of a first terminal, when a data unit to be transmitted to at least one terminal other than the first terminal is in the AP, generating a physical layer convergence procedure (PLCP) protocol data unit (PPDU) including the first data unit and the data unit to be transmitted to the at least one terminal, and transmitting the PPDU to the first terminal and the at least one terminal. Accordingly, it is possible to improve the performance of a wireless local area network (WLAN).

Abstract: The present disclosure relates to a wireless communication apparatus capable of increasing throughput using MIMO in an LOS environment and a method for the same. A wireless communication apparatus based on the LOS-MIMO technique may comprise a multi-link configuration unit, a frequency response correction unit, a signal compensation unit, and a feedback unit. In the apparatus, an additional LOS-MIMO equalizer is used at the front of an LOS-MIMO estimator and a coding unit in order to compensate in-band frequency characteristics of frequency response characteristics estimated by the LOS-MIMO estimator and a signal channel estimator, whereby the LOS-MIMO estimation performance can be remarkably enhanced. Also, precise separation of multiplexed signals through the above-described LOS equalizer can make it possible to increase transmission capacity by using the LOS-MIMO which can be applied to high-order mode (e.g., over 16 quadrature amplitude modulation (QAM)) digital communications.

Abstract: A method for operating a station in a wireless LAN is disclosed. An OFDMA-based communication method comprises the steps of: receiving, from an access point, a first frame including time resource information and frequency resource information indicating a resource occupied for an OFDMA-based communication; and receiving, from the access point, a data frame through the resource indicated by the time resource information and frequency resource information. Therefore, performance of the wireless LAN system can be improved.

Abstract: An electronic device and a method of operating a panorama function in the electronic device are provided. The electronic device includes at least one processor, a memory, a camera configured to sequentially obtain a plurality of images if an image capture is started, and a sensor configured to sense motion of the electronic device. The at least one processor is configured to store in the memory a panorama content file comprising panorama image data and dynamic panorama data generated based on the plurality of images and the motion of the electronic device sensed during the image capture.

Abstract: Provided are a method of removing common noise and a method of detecting touch information. The method of removing common noise includes acquiring base lines, acquiring raw data, calculating touch strengths (TSs) using the base lines and the raw data, calculating a difference representative value between the TSs and a reference level, and removing influence of common noise from the TSs using the difference representative value.

Abstract: Provided are a multi-input multi-output system which overcomes a disadvantage that optimal receiving performance cannot be maintained according to an installation environment and a performance change of a receiver when a receiving module is configured by using a fixed attenuator and a fixed phase in a line-of-sight multi-input multi-output system configuration and analogously controls an interference removing module of a receiver including a variable attenuator and a phase shifter which are controllable to enhance a receiving performance and increase frequency efficiency, in order to maximize a signal-to-interference ratio of each path and an operating method thereof.

Abstract: Disclosed are a method for transmitting and receiving a frame in a wireless local area network (WLAN) system and an apparatus for the same. A method for generating interference/non-interference station lists includes receiving a first frame from a second station, acquiring a receiver address of the first frame from the first frame, and setting, based on whether to receive a second frame that is a response to the first frame from a third station indicated by the receiver address within a preset time from a time when the first frame has been received, the third station as an interference station or a non-interference station. Therefore, the performance of a communication system may be improved.

Abstract: Provided is a surface modification method of calcite powder prepared from desulfurized gypsum and heat-treated at a high temperature. According to the surface modification method, hydrophilic calcite powder having polarity may be changed into hydrophobic non-polar calcite powder by safely adsorbing a surface modifier onto a surface of the calcite powder and coating the surface with non-polar fatty acid. Particularly, in the case in which calcite powder heat-treated at a high temperature is hydrophobized, a significantly excellent hydrophobic surface property may be implemented.