Method for establishing data transmission path and sensor network employing the same
First Claim
1. A method for establishing a data transmission path of a sink node applied to a network system that includes a plurality of nodes including the sink node, the method comprising:
- a) requesting nodes on a previously established data transmission path to give their adjacent node information;
b) receiving the adjacent node information;
c) retrieving information regarding adjacent nodes as the sink node moves; and
d) reestablishing the data transmission path through a result of the retrieval result and the adjacent node information, whereinthe step c) includes c1) broadcasting a predetermined message to the adjacent nodes, and c2) receiving information including node IDs from the adjacent nodes; and
the step d) includes d1) selecting a first node from among the adjacent nodes on the data transmission path according to a priority order, wherein the priority order is set according to a number of hops of the reestablished data transmission path.
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Abstract
A sensor network system and method for establishing a data transmission path are is disclosed. The method for establishing a data transmission path of a sink node and the network system which includes a plurality of nodes including the sink node, includes a) requesting nodes on a previously established data transmission path to give their adjacent node information, b) receiving the adjacent node information, c) retrieving adjacent nodes as the sink node moves, and d) reestablishing the data transmission path through the result of retrieval and the adjacent node information. Since the data transmission path is reestablished without flooding, it is possible to reduce energy of the nodes. Also, the method for establishing a data transmission path can be applied to any routing protocols without additional conditions.
45 Citations
12 Claims
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1. A method for establishing a data transmission path of a sink node applied to a network system that includes a plurality of nodes including the sink node, the method comprising:
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a) requesting nodes on a previously established data transmission path to give their adjacent node information; b) receiving the adjacent node information; c) retrieving information regarding adjacent nodes as the sink node moves; and d) reestablishing the data transmission path through a result of the retrieval result and the adjacent node information, wherein the step c) includes c1) broadcasting a predetermined message to the adjacent nodes, and c2) receiving information including node IDs from the adjacent nodes; and the step d) includes d1) selecting a first node from among the adjacent nodes on the data transmission path according to a priority order, wherein the priority order is set according to a number of hops of the reestablished data transmission path. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A network system, comprising:
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a plurality of nodes in which one of the nodes is a sink node and a data transmission path is established to the sink node;
wherein,the sink node requests nodes on the established data transmission path to give their adjacent node information, the sink node receives the adjacent node information, the sink node retrieves information regarding adjacent nodes as the sink node moves, and the data transmission path is reestablished through a result of the retrieval result and the adjacent node information; the sink node retrieves the information regarding the adjacent nodes by broadcasting a predetermined message to the adjacent nodes and receiving information including node IDs from the adjacent nodes; and the data transmission path is reestablished by selecting a first node from among the adjacent nodes on the data transmission path according to a priority order, wherein the priority order is set according to a number of hops of the reestablished data transmission path. - View Dependent Claims (12)
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Specification