Samsung Electronics Co., Ltd.

Korea Advanced Institute of Science and Technology

Seoul National University

Samsung Electro-mechanics Co., Ltd.

Cornell University

Sungkyunkwan University

Snu Rdb Foundation

Kyung Hun Jang

Hyun Ho Choi

Tae Soo Kwon

Jong Bu Lim

Won Jae Shin

In Sun Lee

Won Jong Noh

Tae In Hyon

Youngsoo Kim

Hyun Gi Ahn

Young Soo Kim

Young Jun Hong

Sunghyun Choi

Soeng Hun Kim

Kyeong-In Jeong

Jae Hoon Kim

Hyo Sun Hwang

Chang Yong Shin

Jae Hyun Kim

Dong Ho Cho

Chan Soo Hwang

Hee Jung Yu

Jung Hyun Park

Yong Hoon Lee

Young-Doo Kim

Joon Young Cho

Sung Ho Choi

Wei Yu

Hyewon Lee

Wan Gyun Choi

Bruno Clerckx

Chan Kim

Jung Woo Lee

Hak Soo Kim

Myeong Wuk Jang

Nam Yoon Lee

Kwang Hoon Han

Won-Jae Shin

Mi Suk Huh

Dong Jo Park

Yong Ho Cho

O Hyun Jo

Woo-shik Kang

Sung Hoon Lim

Tae Jin Lee

Ohyun Jo

Ho Won Lee

Chung-Gu Kang

Jong Ho Bang

Young Seok Oh

Jung Min Moon

Nam Jeong Lee

Do Jun Byun

Young Chul Sung

Eun Seok Ko

Yoon Chae Cheong

Sung Hyun Choi

Mahmoud Hadef

Nam-Yoon Lee

Munhwan Choi

Woong Sup Lee

Sung Ho Chae

Youngnam Han

Ki Song Lee

Jim O'Reilly

Woongsup Lee

Kwanghun Han

Sunggeun Jin

Seungmo Kim

Silas L Fong

Gyu Jin Lee

A Salman Avestimehr

Youngwoo Hwang

Yeon Chul Shin

Jong Hoe Koo

Chang-wook Ahn

Seung Kyu Baek

Ibrahim Issa

Salman A Avestimehr

Kwang Taik Kim

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.

Method and apparatus for relaying in multicast network

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.

Base station and a plurality of member nodes for transmitting and receiving network coding based multicast traffic

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.

Communication method and apparatus

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.

Transmitter, relay, receiver, and cooperative communication system using network compress-and-forward scheme

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.

Method and apparatus for secure communication and determining secret information

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.

Radio transceiver for virtual full duplex communication using unused resources

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.

Method and apparatus to control interference in multi-hop network and relay node and node pair using the method

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.

Apparatus and method for transmitting data based on cooperation of member nodes belonging to multicast group

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.

Communication method for access point and terminal for retransmission of multicast packet in network including access point and plurality of terminals

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.

Communication method and apparatus for device-to-device (D2D)

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.

Communication method of macro base station, macro terminal, micro base station, and micro terminal for interference control in hierarchical cellular network

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.

Method of controlling interference in multi-hop network based on MIMO system and relay node and node pair using the method

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.

Method of multi-hop cooperative communication from terminal and base station and network for multi-hop cooperative communication

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.

Method and apparatus for scheduling resources at relay station (RS) in mobile communication network

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.

Method of transmitting and receiving channel information in multi-hop network and terminals therefor

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Suwon-si, South Korea

Kyung Hun Jang