摘要:
A method and apparatus for authenticating a sensor node in a sensor network. The method for authenticating a sensor node by a first sink node in a sensor network includes receiving an authentication request using an authentication ticket from the sensor node, identifying a second sink node which has issued the authentication ticket, decoding the authentication ticket using a group key, which is previously stored in correspondence to the second sink node to confirm the validity of the authentication ticket, when the second sink node is included in a neighboring node list, normally processing authentication for the sensor node, generating an authentication ticket using a group key of the first sink node, and transmitting the generated authentication ticket to the sensor node.
摘要:
A method and apparatus for authenticating a sensor node in a sensor network. The method for authenticating a sensor node by a first sink node in a sensor network includes receiving an authentication request using an authentication ticket from the sensor node, identifying a second sink node which has issued the authentication ticket, decoding the authentication ticket using a group key, which is previously stored in correspondence to the second sink node to confirm the validity of the authentication ticket, when the second sink node is included in a neighboring node list, normally processing authentication for the sensor node, generating an authentication ticket using a group key of the first sink node, and transmitting the generated authentication ticket to the sensor node.
摘要:
Disclosed a system and method for mutual authentication between a node and a sink in a sensor network. At least one sink periodically creates a neighboring sink list including information on at least one adjacent sink, and the sink requests node authentication to a base station when receiving an authentication request from the node and transmits its own neighboring sink list to the node when the node authentication has been completed. When the node moves and requests authentication to another sink, the another sink stores a neighboring sink list received from the node, determines if a node-authenticable sink exists in its own neighboring sink list according to the authentication request, and requests re-authentication of the node to the node-authenticable sink when the node-authenticable sink exists, so that re-authentication between the node and the sink is easily performed.
摘要:
Disclosed a system and method for mutual authentication between a node and a sink in a sensor network. At least one sink periodically creates a neighboring sink list including information on at least one adjacent sink, and the sink requests node authentication to a base station when receiving an authentication request from the node and transmits its own neighboring sink list to the node when the node authentication has been completed. When the node moves and requests authentication to another sink, the another sink stores a neighboring sink list received from the node, determines if a node-authenticable sink exists in its own neighboring sink list according to the authentication request, and requests re-authentication of the node to the node-authenticable sink when the node-authenticable sink exists, so that re-authentication between the node and the sink is easily performed.
摘要:
A system, method, and apparatus are provided for establishing a wireless network connection between a mobile terminal and an electronic apparatus by using a near field communication network. At least one electronic apparatus is connected to the near field communication network. A mobile terminal is connected to the near field communication network, exchanges information with the at least one electronic apparatus for a wireless communication network connection through the connected near field communication network, and establishes the wireless communication network connection with the at least one electronic apparatus based on the exchanged information.
摘要:
A communication method between nodes that have their own timers and have an equal start time of a frame for Time Division Multiple Access (TDMA) communication based on their timers in a mobile ad-hoc network, in which a node receives a timer value derived by a neighbor node on the basis of a transmission time, from the neighbor node, the node calculates a time offset indicative of a difference between a timer value derived on the basis of a time the node received the timer value, and the received timer value, and stores the time offset in a memory, and upon receiving a time value indicating a time related to inter-node TDMA communication from the neighbor node, the node corrects the received time value as a time value based on its timer using the time offset, and performs TDMA communication using the corrected time value.
摘要:
A system, method, and apparatus are provided for establishing a wireless network connection between a mobile terminal and an electronic apparatus by using a near field communication network. At least one electronic apparatus is connected to the near field communication network. A mobile terminal is connected to the near field communication network, exchanges information with the at least one electronic apparatus for a wireless communication network connection through the connected near field communication network, and establishes the wireless communication network connection with the at least one electronic apparatus based on the exchanged information.
摘要:
A method of avoiding channel interference in a multi-channel sensor network, includes periodically measuring an energy of a channel used by at least one node included in the sensor network; determining if the energy of the channel has a value larger than a first preset threshold; when the energy of the channel has a value larger than the first preset threshold, concluding that the channel is influenced by an interference from an interference source, and reporting it to a parent node of the at least one node; and switching the channel influenced by the interference to a new channel, which is not influenced by an interference, thereby avoiding an influence of the interference.
摘要:
A method of avoiding a channel interference in a single channel sensor network, includes periodically measuring an energy of a channel used by at least one node included in the sensor network; exchanging the measured energy of the channel with a neighbor node of the at least one node; receiving energy of all nodes of the sensor network and determining if there is an interference, by a coordinator node, which is a highest node of the at least one node; and when it is determined that there is an interference, switching a channel influenced by the interference to a channel which has been scanned by the coordinator node and is not influenced by the interference, thereby avoiding an influence of the interference.
摘要:
A method of avoiding a channel interference in a single channel sensor network, includes periodically measuring an energy of a channel used by at least one node included in the sensor network; exchanging the measured energy of the channel with a neighbor node of the at least one node; receiving energy of all nodes of the sensor network and determining if there is an interference, by a coordinator node, which is a highest node of the at least one node; and when it is determined that there is an interference, switching a channel influenced by the interference to a channel which has been scanned by the coordinator node and is not influenced by the interference, thereby avoiding an influence of the interference.