摘要:
A communication apparatus and method of a content router control a traffic transmission rate in a content-centric network (CCN), and the content router. In the communication method and the content router, a congestion of a network may be predicted, a warning signal indicating the congestion may be added to an interest packet, and the interest packet with the warning signal may be transmitted. Additionally, a traffic transmission rate may be controlled by adjusting a data packet transmission time based on a value of a marked field of a PIT. The PIT is set by receiving an interest packet to which a warning signal is added. Thus, the communication apparatus and method thereof provide reachability, while maintaining stability of network routing.
摘要:
Provided is a communication method of a terminal, including generating, based on a characteristic of an application executed by at least one terminal in a virtual group, a content request message to request content stored by one or more other terminals in the virtual group, and transmitting the content request message to an intermediate node managing the at least one terminal to receive the content stored by the one or more other terminals.
摘要:
Provided are a network apparatus and system that may request or receive the same contents stored in a plurality of network apparatuses. In a network system sharing data, specific segments from a plurality of segments constituting the data may be received from mutually different terminals. For this, a transmission region may be determined by calculating a transmission offset corresponding to the plurality of terminals, and at least one segment included in the determined transmission region may be received from a corresponding terminal.
摘要:
Provided are a content source node and a first content router and a second content router in a content centric network (CCN), and a communication method thereof. The technology described herein may reduce the updating of routing information due to a movement of a mobile source node and the corresponding overhead, thereby reducing a rate of using an overall network resource by adding routing information, that is, partially updating the routing information of the corresponding mobile source node for content routers on a route through which the mobile source node moves.
摘要:
Provided are communication devices and methods for requesting content in a network based on a hierarchical name structure. A content requester may search for content without the use of the entire content name in the network based on the hierarchical name structure.
摘要:
Provided is a communication method of a hub that selects a transmission route from the hub to a receiving terminal of a receiving virtual group based on interface information about at least one interface which is available for use by the receiving terminal and is received from the receiving terminal and interface information about at least one interface which is available for use by a transmitting terminal of a transmitting virtual group and is received from the transmitting terminal.
摘要:
A data transmission apparatus and a data reception apparatus, are provided. The apparatuses may share data in a Peer-to-Peer (P2P) scheme via a network. The data transmission apparatus divides data into a plurality of segments, and determines a transmission order with respect to each of the divided segments. The data transmission apparatus and the data reception apparatus share data based on the transmission order of the divided segments.
摘要:
Provided is a system for sharing data using a network. When a data transmission apparatus included in the data sharing system generates data, the data transmission apparatus may transmit a data generation message to a data reception apparatus. The data reception apparatus may receive the data based on the data generation message.
摘要:
A telemetry data retrieval apparatus and method for post-processing are provided. The telemetry data retrieval apparatus may include a retrieval initiating unit to receive an input of a retrieval time, and to calculate a percentage of the retrieval time during an entire retrieval period, a start position calculating unit to calculate a retrieval start position in which data retrieval is started within a stored file, based on the calculated percentage, and a telemetry data retrieval unit to verify a start pattern and a time tag from the calculated retrieval start position, and to retrieve a position of telemetry data in the stored file.
摘要:
Provided is a system for collecting and managing rainfall attenuation data and rainfall intensity data in a satellite communication system. The system may include: a satellite transmitter to transmit a satellite beacon signal; a Global Positioning System (GPS) to transmit a GPS signal; at least one data collecting apparatus to generate rainfall attenuation data about the satellite beacon signal when the satellite beacon signal is received from the satellite transmitter, and to generate rainfall intensity data within a valid path length of rainfall attenuation, to extract time information from the GPS signal, and to assign the time information to the rainfall attenuation data and the rainfall intensity data; and a data managing apparatus to receive, from the at least one data collecting apparatus, the rainfall attenuation data and the rainfall intensity data assigned with the time information, and to manage the received rainfall attenuation data and rainfall intensity data.