Method of performing routing and allocating resources in wireless sensor network
First Claim
1. A method of performing routing and allocating resources in a wireless sensor network, the method comprising:
- electing one or more cluster heads, each representing each of one or more clusters comprised of a plurality of sensor nodes;
selecting a routing path between each of the cluster heads and the plurality of sensor nodes which belong to the cluster represented by each of the cluster heads;
selecting a frame length based on elements and distribution methods of the wireless sensor network and the routing path;
forming a time slot resource allocation table for communication between the cluster heads; and
exchanging the time slot resource allocation table between the cluster heads separated by one hop,wherein the selecting of a frame length employs a contention protocol when the frame length is selected in consideration of information data relating to the constitution and maintenance of the wireless sensor network and employs a contention free protocol when the frame length is selected in consideration of data to be communicated between the sensor nodes.
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Abstract
Provided is a method of performing a routing and allocating a resource in a wireless sensor network. The method includes electing one or more cluster heads, each representing each of one or more clusters comprised of a plurality of sensor nodes, selecting a routing path between the cluster heads and the plurality of sensor nodes, selecting a frame length based on elements and distribution methods of the wireless sensor network and the routing path, forming a time slot resource allocation table for communication between the cluster heads, and exchanging the time slot resource allocation table between the cluster heads separated by one hop. The present invention can enhance the reliability of the wireless sensor network and QoS by effectively performing routing and allocating resources in such a manner that various data requirements can be satisfied.
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Citations
12 Claims
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1. A method of performing routing and allocating resources in a wireless sensor network, the method comprising:
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electing one or more cluster heads, each representing each of one or more clusters comprised of a plurality of sensor nodes; selecting a routing path between each of the cluster heads and the plurality of sensor nodes which belong to the cluster represented by each of the cluster heads; selecting a frame length based on elements and distribution methods of the wireless sensor network and the routing path; forming a time slot resource allocation table for communication between the cluster heads; and exchanging the time slot resource allocation table between the cluster heads separated by one hop, wherein the selecting of a frame length employs a contention protocol when the frame length is selected in consideration of information data relating to the constitution and maintenance of the wireless sensor network and employs a contention free protocol when the frame length is selected in consideration of data to be communicated between the sensor nodes. - View Dependent Claims (2, 3)
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4. A method of performing routing and allocating resources in a wireless sensor network, the method comprising:
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selecting a routing path between clusters to initialize the wireless sensor network; allocating, by each of cluster heads representing each of the clusters, resources to a sensor node based on a resource allocation request of the sensor node and a time slot resource allocation table formed by each of the cluster heads through an exchange between the cluster heads; transmitting, by the sensor node, data to the cluster heads using the allocated resource; and collecting and classifying, by the cluster heads, the data and transmitting the classified data to a neighboring cluster head, wherein the selecting of a frame length employs a contention protocol when the frame length is selected in consideration of information data relating to the constitution and maintenance of the wireless sensor network and employs a contention free protocol when the frame length is selected in consideration of data to be communicated between the sensor nodes; and wherein the initializing of the wireless sensor network comprises; electing one or more cluster heads, each representing each of one or more clusters comprised of a plurality of sensor nodes; selecting the routing path between the cluster heads and the plurality of sensor nodes which belong to the cluster represented by each of the cluster heads; selecting a frame length based on elements and distribution methods of the wireless sensor network and the routing path; forming the time slot resource allocation table for communication between the cluster heads; and exchanging the time slot resource allocation table between the cluster heads separated by one hop. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12)
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Specification