Node device and method of allocating resources in wireless sensor networks
First Claim
1. A method of allocating resources in a multi-hop wireless sensor network, the method comprising:
- (A) when two arbitrary adjacent links among links connecting all nodes have a violation relationship where the two arbitrary adjacent links occupy the same time slot, by a network coordinator node, allocating different time slots to the two arbitrary adjacent links according to a resource allocation request command message from each of nodes configuring the multi-hop wireless sensor network;
(B) when two arbitrary links which are not adjacent to each other among the links are within a communication distance, by the network coordinator node, allocating different frequency channels to the two arbitrary links; and
(C) when resource allocation for all of the links is completed according to steps (A) and (B), checking whether an end-to-end maximum allowable time required by each of paths established by the links is satisfied,wherein resources are allocated to each of the links according to a resource allocation schedule including steps (A) to (C).
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Accused Products
Abstract
A method of allocating resources in a multi-hop wireless sensor network includes (A) when two arbitrary adjacent links among links connecting all nodes have a violation relationship where the two arbitrary adjacent links occupy the same time slot, by a network coordinator node, allocating different time slots to the two arbitrary adjacent links according to a resource allocation request command message from each of nodes configuring the multi-hop wireless sensor network, (B) when two arbitrary links which are not adjacent to each other among the links are within a communication distance, by the network coordinator node, allocating different frequency channels to the two arbitrary links, and (C) when resource allocation for all of the links is completed according to steps (A) and (B), checking whether an end-to-end maximum allowable time required by each of paths established by the links is satisfied.
27 Citations
15 Claims
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1. A method of allocating resources in a multi-hop wireless sensor network, the method comprising:
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(A) when two arbitrary adjacent links among links connecting all nodes have a violation relationship where the two arbitrary adjacent links occupy the same time slot, by a network coordinator node, allocating different time slots to the two arbitrary adjacent links according to a resource allocation request command message from each of nodes configuring the multi-hop wireless sensor network; (B) when two arbitrary links which are not adjacent to each other among the links are within a communication distance, by the network coordinator node, allocating different frequency channels to the two arbitrary links; and (C) when resource allocation for all of the links is completed according to steps (A) and (B), checking whether an end-to-end maximum allowable time required by each of paths established by the links is satisfied, wherein resources are allocated to each of the links according to a resource allocation schedule including steps (A) to (C). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A node device for allocating resources to each of links connecting child nodes according to a resource allocation request command message from each of the child nodes configuring a multi-hop wireless sensor network, the node device comprising:
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a system bus; a memory configured to store a resource allocation algorithm for allocating the resources to each of the links; and a processor configured to execute the resource allocation algorithm, stored in the memory, through the system bus, wherein when two arbitrary adjacent links among the links connecting the child nodes have a violation relationship where the two arbitrary adjacent links occupy the same time slot, the processor allocates different time slots to the two arbitrary adjacent links according to the resource allocation request command message, when two arbitrary links which are not adjacent to each other among the links are within a communication distance, the processor allocates different frequency channels to the two arbitrary links, and when resource allocation for all of the links is completed, the processor allocates the resources to each of the links according to a resource allocation schedule which checks whether an end-to-end maximum allowable time required by each of paths established by the links is satisfied. - View Dependent Claims (12, 13, 14, 15)
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Specification