APPARATUS AND METHOD OF TRANSMITTING PACKET OF NODE IN WIRELESS SENSOR NETWORK
First Claim
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1. An apparatus for transmitting a packet of a node in a wireless sensor network, the apparatus comprising:
- a plurality of priority queues;
a storage controlling unit which stores packets, which are to be transmitted to neighboring nodes within a wireless reception range of the node, in corresponding priority queues according to a transmission priority of the packets from among the plurality of priority queues; and
a packet transmitting unit which transmits the packets stored in each of the plurality of priority queues, according to a priority of each of the plurality of priority queues.
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Abstract
Provided is an apparatus and method of transmitting a packet of a node in a wireless sensor network. The apparatus includes a plurality of priority queues, wherein packets to be transmitted to neighboring nodes are stored in each of the priority queues according to transmission priority, and the packets are transmitted according to the priority of each priority queue. Accordingly, a delay of a packet that requires real-time transmission is minimized by using priority queues in a node.
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Citations
17 Claims
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1. An apparatus for transmitting a packet of a node in a wireless sensor network, the apparatus comprising:
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a plurality of priority queues; a storage controlling unit which stores packets, which are to be transmitted to neighboring nodes within a wireless reception range of the node, in corresponding priority queues according to a transmission priority of the packets from among the plurality of priority queues; and a packet transmitting unit which transmits the packets stored in each of the plurality of priority queues, according to a priority of each of the plurality of priority queues. - View Dependent Claims (2, 3, 4, 5)
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6. A method of transmitting a packet of a node having a plurality of priority queues in a wireless sensor network, the method comprising:
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storing packets, which are to be transmitted to neighboring nodes within a wireless reception range of the node, in corresponding priority queues according to a transmission priority of the packets from among the plurality of priority queues; and transmitting the packets stored in each of the plurality of priority queues according to a priority of the each of the plurality of priority queues. - View Dependent Claims (7, 8, 9, 10)
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11. An apparatus for transmitting a packet of a node in a wireless sensor network having a hierarchical tree structure, the apparatus comprising:
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a neighboring information collecting unit which collects information about a load of a queue for storing packets of each of neighboring nodes from packets received from the neighboring nodes within a wireless reception range of the node; a parent node selecting unit which selects a parent node to which a sensor data packet that requires real-time transmission is to be routed from among the neighboring nodes, based on the collected information; and a data transmitting unit which transmits the sensor data packet to the selected parent node. - View Dependent Claims (12, 13, 14)
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15. A method of transmitting a packet of a node in a wireless sensor network having a hierarchical tree structure, the method comprising:
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collecting information about a load of a queue for storing packets of each of neighboring nodes from packets received from the neighboring nodes within a wireless reception range of the node; selecting a parent node to which a sensor data packet that requires real-time transmission is to be routed from among the neighboring nodes, based on the collected information; and transmitting the sensor data packet to the selected parent node. - View Dependent Claims (16, 17)
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Specification