Abstract: A method for transmitting and receiving data, which is performed by a terminal, includes: transmitting first data to each of a plurality of reception terminals connected to the terminal, the first data including a source data segment and a parity data segment; determining second data to be transmitted after the first data, based on feedback information that relates to the first data and is received from each of the plurality of reception terminals; and transmitting the determined second data to each of the plurality of reception terminals.

Abstract: The present disclosure relates to technologies for a sensor network, machine-to-machine (M2M) communications, or machine type communications (MTC), and Internet of things (IoT), and may be utilized in intelligent services, based on the above technologies, such as a smart home, a smart building, smart cities, smart cars or connected cars, smart grids, healthcare, smart electronics, advanced medical services, public safety network communications through fusion and convergence with conventional IT technologies and various industries. Data transmission control between a group of uncoordinated electronic devices in a computer network including the use of transmission authorization request messages and transmission authorization grant messages.

Abstract: A method of and an apparatus for transmitting first data to a plurality of receiver terminals connected to a transmitter terminal through the transmitter terminal and transmitting second data to the plurality of receiver terminals through the transmitter terminal is performed according to a transmission speed determined based on at least one selected from feedback information of a receiver terminal selected based on a data loss rate of the first data and variation information of data stored in a buffer of the transmitter terminal.

Abstract: The present disclosure relates to technologies for a sensor network, machine-to-machine (M2M) communications, or machine type communications (MTC), and Internet of things (IoT), and may be utilized in intelligent services, based on the above technologies, such as a smart home, a smart building, smart cities, smart cars or connected cars, smart grids, healthcare, smart electronics, advanced medical services, public safety network communications through fusion and convergence with conventional IT technologies and various industries. Data transmission control between a group of uncoordinated electronic devices in a computer network including the use of transmission authorization request messages and transmission authorization grant messages.

Abstract: Provided is a method of transmitting and receiving data by a user equipment (UE), the method including receiving, by the UE, a first data stream including at least one of transmission data and a first error correction code regarding the transmission data, obtaining a second error correction code based on the transmission data obtained from the received first data stream, and transmitting a second data stream including at least one of recovered transmission data and the obtained second error correction code.

Abstract: The present disclosure relates to technologies for a sensor network, machine-to-machine (M2M) communications, or machine type communications (MTC), and Internet of things (IoT), and may be utilized in intelligent services, based on the above technologies, such as a smart home, a smart building, smart cities, smart cars or connected cars, smart grids, healthcare, smart electronics, advanced medical services, public safety network communications through fusion and convergence with conventional IT technologies and various industries. Data transmission control between a group of uncoordinated electronic devices in a computer network including the use of transmission authorization request messages and transmission authorization grant messages.

Abstract: The present disclosure relates to technologies for a sensor network, machine-to-machine (M2M) communications, or machine type communications (MTC), and Internet of things (IoT), and may be utilized in intelligent services, based on the above technologies, such as a smart home, a smart building, smart cities, smart cars or connected cars, smart grids, healthcare, smart electronics, advanced medical services, public safety network communications through fusion and convergence with conventional IT technologies and various industries. Data transmission control between a group of uncoordinated electronic devices in a computer network including the use of transmission authorization request messages and transmission authorization grant messages.

Abstract: A method of communication among a plurality of terminals, including transmitting, by a first terminal of the plurality of terminals, a call setup request message of the first terminal to at least one other terminal of the plurality of terminals; and establishing, by the first terminal, a session with the at least one other terminal, the at least one other terminal having received the call setup request message of the first terminal, wherein a terminal having a floor of the session is determined based on priority information regarding terminals that requested the floor from among the plurality of terminals.

Abstract: A method for transmitting and receiving data, which is performed by a terminal, includes: transmitting first data to each of a plurality of reception terminals connected to the terminal, the first data including a source data segment and a parity data segment; determining second data to be transmitted after the first data, based on feedback information that relates to the first data and is received from each of the plurality of reception terminals; and transmitting the determined second data to each of the plurality of reception terminals.

Abstract: According to the present invention, back-off slots and collisions in a competition by means of a DCF can be significantly reduced, and a throughput higher than existing DCFs can be provided. Also, overhead due to additional control messages is eliminated by reverse order implied information operating in a distributed manner in terminals, and communication with existing terminals is enabled even in a wireless network using Aps or the DCF.

Abstract: According to the present invention, collision and a back-off slot in a competition by means of DCF can be significantly reduced, and a throughput higher than conventional DCFs can be provided. Also, overhead due to additional control messages is eliminated by reverse order implied information operating in a distributed manner in terminals, and communication with conventional terminals is enabled even in a wireless network using Aps or the DCF.

Abstract: Provided is a method of connecting an access point (AP) device from among a plurality of AP devices on a same network to a terminal. The method includes registering, by the AP device, media access control (MAC) address information regarding at least one or more terminals; receiving a connection request to the AP device from the terminal; and comparing the MAC address information regarding the terminal extracted from the connection request to the registered MAC address information and determining whether to connect the terminal to the AP device.

Abstract: Provided is a technology related to a sensor network, machine to machine (M2M), machine type communication (MTC), and the Internet of things (IoT). Transmitting data between transceivers including transmitting data segments of source data and parity data segments including restoration information for a transceiver to restore the source data. The method is applicable to intelligent services based on the technology (e.g., smart home services, smart building services, smart city services, smart or connected car services, health care services, digital education services, retail business services, security and safety-related services, etc.).

Abstract: A method of and an apparatus for transmitting first data to a plurality of receiver terminals connected to a transmitter terminal through the transmitter terminal and transmitting second data to the plurality of receiver terminals through the transmitter terminal is performed according to a transmission speed determined based on at least one selected from feedback information of a receiver terminal selected based on a data loss rate of the first data and variation information of data stored in a buffer of the transmitter terminal.

Abstract: Provided is a node probing method using an adaptive and asynchronous rendezvous protocol in an opportunistic network. The node probing method includes: selecting, by each of nodes in the opportunistic network, a prime number larger than two; using, by the node, the selected prime number to generate a wake-up pattern according to the following equation: x n = { 1 , if n ? 0 ? ( mod ? ? p ) ? ? or n ? 1 ? ( mod ? ? p + 1 ) 0 , others where Xn=1 represents a wake-up slot, Xn=0 represents a sleeping slot, and ‘mod p’ represents a modulo operation for the prime number p); and searching, by the node, for a neighbor node according to the generated wake-up pattern.

Abstract: According to the present invention, back-off slots and collisions in a competition by means of a DCF can be significantly reduced, and a throughput higher than existing DCFs can be provided. Also, overhead due to additional control messages is eliminated by reverse order implied information operating in a distributed manner in terminals, and communication with existing terminals is enabled even in a wireless network using Aps or the DCF.

Abstract: According to the present invention, collision and a back-off slot in a competition by means of DCF can be significantly reduced, and a throughput higher than conventional DCFs can be provided. Also, overhead due to additional control messages is eliminated by reverse order implied information operating in a distributed manner in terminals, and communication with conventional terminals is enabled even in a wireless network using Aps or the DCF.

Abstract: Provided is a node probing method using an adaptive and asynchronous rendezvous protocol in an opportunistic network. The node probing method includes: selecting, by each of nodes in the opportunistic network, a prime number larger than two; using, by the node, the selected prime number to generate a wake-up pattern according to the following equation: x n = { 1 , if n ? 0 ? ( mod ? ? p ) ? ? or n ? 1 ? ( mod ? ? p + 1 ) 0 , others where Xn=1 represents a wake-up slot, Xn=0 represents a sleeping slot, and ‘mod p’ represents a modulo operation for the prime number p); and searching, by the node, for a neighbor node according to the generated wake-up pattern.

Abstract: Provided is distributed medium access scheduling with implicit ordering (DSIO). The DISO includes the steps of: (a) when any terminal of a plurality of terminals included in a terminal group has data to transmit, promoting the terminal to a transmission data existence layer; (b) when any blue terminal of a plurality of blue terminals included in a blue terminal group has no data to transmit, degrading the blue terminal to a transmission data non-existence layer; and (c) when any red terminal of a plurality of red terminals included in a red terminal group succeeds in intruding between the blue terminals and recognizes whether or not to transmit data without a collision, promoting the red terminal to the blue terminal group.

Abstract: Provided is distributed medium access scheduling with implicit ordering (DSIO). The DISO includes the steps of: (a) when any terminal of a plurality of terminals included in a terminal group has data to transmit, promoting the terminal to a transmission data existence layer; (b) when any blue terminal of a plurality of blue terminals included in a blue terminal group has no data to transmit, degrading the blue terminal to a transmission data non-existence layer; and (c) when any red terminal of a plurality of red terminals included in a red terminal group succeeds in intruding between the blue terminals and recognizes whether or not to transmit data without a collision, promoting the red terminal to the blue terminal group.