Korea Advanced Institute of Science and Technology

Samsung Electronics Co., Ltd.

Electronics and Telecommunications Research Institute

Hyundai Motor Company

Kia Motors Corporation

Joonhyuk Kang

Young-hwan Kim

Jae-Hyon Kim

Yungil Kim

Seong-soo Lee

Jaeseung Son

Dongwon Kim

Hyounkuk Kim

Jinu Gong

Young-Hoon Kim

Jong-Ho Lee

Seung-Chan Bang

Sang-Boh Yun

Jae-Seung Son

Joo-Hyun Lee

Kyung-Ho Park

Jaehwan Kim

Byung-Jae Kwak

Jihoon Sung

Sung-Soo Hwang

Young-Hwan Kim

Keon-Kook Lee

Hyuncheol Park

Sung-Yoon Jung

Jin Up Kim

Sangwoo Park

Namseok Chang

Jong-sub Cha

Woojun Lee

Gil Sup An

Eunhye Park

Jin Yeop Na

Seungjae Jung

Deockgu Jee

Keongkook Lee

Jungho Myung

Jinook Yoo

Sangwook Suh

Hyoncheol Park

Jongmok Kim

Youngsu Jang

Jeongwan Koh

Wanjik Kim

Yung-Il Kim

There is provided a channel equalization device. The channel equalization device comprises a receiver configured to receive a plurality of consecutive reception symbol sequences through multiple channels; a memory storing one or more instructions; and a processor configured to execute the one or more instructions stored in the memory, wherein the instructions, when executed by the processor, cause the processor to estimate a transmission symbol at a position of interest among a plurality of consecutive transmission symbol sequences based on the plurality of received reception symbol sequences using a neural filter trained by training reception symbol sequences.

Channel equalization device and method, and computer readable storage medium storing instructions to perform channel equalization method

A data offloading method for vehicle edge computing is provided. The data offloading method may include transmitting input data to a road side unit (RSU) closest to a vehicle through an uplink, and receiving output data processed by the RSU closest to the vehicle through a downlink. The transmitting of the input data to the RSU closest to the vehicle through the uplink may include comparing a location of the vehicle with locations of candidate RSUs, and the transmitting of the input data to the RSU closest to the vehicle through the uplink and receiving of the output data processed by the RSU closest to the vehicle through the downlink may be performed in a state of occupying at least one time frame among time frames allocated for a communication between the vehicle and the candidate RSUs.

Method and apparatus for data offloading for vehicle edge computing

A communication method of a heterogeneous distributed wireless network system includes calculating a first transmission threshold in the heterogeneous distributed wireless network system including a plurality of distributed networks that share a same frequency band, determining whether data is transmitted by transmitter/receiver pairs included in the heterogeneous distributed wireless network system, based on the first transmission threshold, calculating a second transmission threshold locally for each of the distributed networks, based on whether data is transmitted by at least one transmitter belonging to the transmitter/receiver pairs, selectively determining whether data is transmitted for each of the distributed networks based on the second transmission threshold, and transmitting the data.

Communication method of heterogeneous distributed wireless network system, and heterogeneous distributed wireless network system

The present disclosure relates to a pre-5-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4-Generation (4G) communication system such as Long Term Evolution (LTE). According to various embodiments in the present disclosure, an operating method of a base station in a wireless communication system may include determining a transmission mode of the greatest channel capacity among a plurality of transmission modes based on first channel information of a first terminal and second channel information of a second terminal, and transmitting a transmit signal generated based on the determined transmission mode to the first terminal and the second terminal. The first transmission mode of the plurality of the transmission modes may be a transmission mode for applying a diversity scheme to a first signal for the first terminal, applying a multiplexing scheme to a second signal for the second terminal, and transmitting the transmit signal comprising the first signal and the second signal in a non-orthogonal multiple access (NOMA) scheme.

Device and method for non-orthogonal multiple access in wireless communication system

A modulation device includes: a communication unit; and a controller configured to: divide a communication signal received by the communication unit into a plurality of frequency bands, determine at least one noise band including a noise signal among the plurality of frequency bands, and generate an output signal by replacing at least one of the plurality of frequency bands corresponding to the noise band with another frequency band.

Modulation device, controlling method of modulation device and vehicle

A terminal and method for recognizing a communication target within a visible range. The method of a terminal to recognize a communication target includes obtaining location information of a communication target whose identification information is unknown within a visible range of a terminal user; and recognizing a relative location of the communication target with respect to the terminal based on the obtained location information and displaying the recognized relative location of the communication target.

Terminal and method for recognizing communication target

An iterative tree search-based preceding method for a multi-user Multi-Input Multi-Output (MIMO) communication system includes determining a reference value of a cumulative branch metric of a candidate symbol, eliminating candidates having values that exceed the determined reference value of the cumulative branch metric of the candidate symbol, and registering values, which do not exceed the determined reference value of the cumulative branch metric of the candidate symbol, as entries, and selecting the least value from the values registered as the entries. Thereby, the method has low complexity and similar performance compared to an existing Sphere Encoding (SE) technique.

Iterative tree search-based precoding technique for multiuser MIMO communication system

A Non-Continuous Orthogonal Frequency Division Multiplexing (NC-OFDM) system may be provided. The NC-OFDM system, including: a sensing unit to determine whether to use at least one frequency band; a band control unit to disable a subcarrier with respect to a frequency band in use as a result of the determination; a pruning determination unit to determine whether a number of points where the subcarrier is disabled is greater than a threshold value; a pruning retrieval unit to retrieve a pruning path generated by the disabling of the subcarrier, when the number of points is greater than the threshold value; and a Fourier transform unit to perform a Fast Fourier transform (FFT) or Inverse FFT (IFFT) by applying the pruning path to the subcarrier.

Non-continuous orthogonal frequency division multiplexing system and control method of non-continuous orthogonal frequency division multiplexing system

A wireless communication system and a method for reducing a ranging time. The communication system includes a main synchronization block group which processes the transceived signal and determines whether the transceived signal is a signal desired by a transmitting device when a receiving device re-transmits the transceived signal to the transmitting device; a ranging block which measures a distance between the transmitting device and the receiving device using a ranging signal when the transceived signal is the desired signal of the transmitting device based on the determination of the main synchronization block group and when the transceived signal is the ranging signal; and a symbol synchronization block which detects a start point and an end point of a symbol forming the signal when the transceived signal from the receiving device is a data communication signal. Accordingly, the fast ranging is feasible and channel occupation time can be shortened.

Wireless communication system for reducing ranging time

A communication system which transmits and receives a communication signal having an intra-guard-interval (IGI) inserted is provided. The communication system includes a signal generator which is configured to generate a signal to carry data; and a signal output part which is configured to split a symbol period, which is a transmission unit of the communication signal into a plurality of sections, and to selectively insert the signal which is generated into the plurality of sections, and to output the communication signal.

Communication system for transmitting and receiving a communication signal having an intra-guard-interval

A ranging system and ranging method are provided. The ranging system includes a transmission signal generator which generates a transmission signal, which is transmitted from a transmission device to a reception device; a correction signal generator which converts the transmission signal, which is processed in the reception device and re-input to the transmission device, into a correction signal; a reference signal generator which generates a reference signal, an overlap detector which detects an overlap region between the correction signal and the reference signal; a time calculator which calculates a transmission time of the transmission signal; and a distance calculator which calculates a distance between the devices using the transmission time. The method includes generating a transmission signal; transmitting the transmission signal to a reception device and receiving the signal back again; producing a correction signal; detecting an overlap region between the correction and reference signals; calculating a transmission time; and calculating a distance between the transmission and reception devices.

Ranging system and method thereof

Growing community of inventors

Daejeon, South Korea

Joonhyuk Kang