Scheduling method and scheduling information synchronizing method in wireless ad hoc network
First Claim
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1. A scheduling method of nodes in a wireless ad hoc network, comprising:
- forming a plurality of clusters including at least one node within the network;
selecting a cluster head among nodes included in each of the clusters;
allocating resources for a first cluster to set a transmission schedule for the first cluster;
transmitting the transmission schedule for the first cluster from the cluster head of the first cluster to an edge node of the first cluster;
transmitting the transmission schedule for the first cluster from the edge node of the first cluster to an edge node of the second cluster;
transmitting the transmission schedule for the first cluster from the edge node of the second cluster to the cluster head of the second cluster;
allocating resources for the second cluster to set a transmission schedule for the second cluster based on the transmission schedule of the first cluster; and
after selecting the cluster head, assigning cluster IDs to the clusters in an ascending sequence from the cluster with the most nodes to the cluster with the least nodes,wherein resources are allocated to each of the clusters sequentially in order of cluster ID.
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Abstract
A decentralized scheduling method in a wireless ad hoc network is provided which includes grouping nodes in the network cluster by cluster, determining a cluster head of each cluster, and sequentially performing scheduling cluster by cluster. Accordingly, it is possible to provide an efficient cluster-based scheduling method which quickly adapts to changes and reduces power consumption.
18 Citations
13 Claims
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1. A scheduling method of nodes in a wireless ad hoc network, comprising:
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forming a plurality of clusters including at least one node within the network; selecting a cluster head among nodes included in each of the clusters; allocating resources for a first cluster to set a transmission schedule for the first cluster; transmitting the transmission schedule for the first cluster from the cluster head of the first cluster to an edge node of the first cluster; transmitting the transmission schedule for the first cluster from the edge node of the first cluster to an edge node of the second cluster; transmitting the transmission schedule for the first cluster from the edge node of the second cluster to the cluster head of the second cluster; allocating resources for the second cluster to set a transmission schedule for the second cluster based on the transmission schedule of the first cluster; and after selecting the cluster head, assigning cluster IDs to the clusters in an ascending sequence from the cluster with the most nodes to the cluster with the least nodes, wherein resources are allocated to each of the clusters sequentially in order of cluster ID. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A scheduling method of nodes in a wireless ad hoc network, comprising:
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forming a plurality of clusters including at least one node within the network; selecting a cluster head among nodes included in each of the clusters; allocating resources for a first cluster to set a transmission schedule for the first cluster; transmitting the transmission schedule for the first cluster from the cluster head of the first cluster to an edge node of the first cluster; transmitting the transmission schedule for the first cluster from the edge node of the first cluster to an edge node of the second cluster; transmitting the transmission schedule for the first cluster from the edge node of the second cluster to the cluster head of the second cluster; allocating resources for the second cluster to set a transmission schedule for the second cluster based on the transmission schedule of the first cluster; and after allocating resources for the second cluster, creating an integrated transmission schedule by integrating the transmission schedule of the first cluster and the transmission schedule of the second cluster, determining a longest frame length from among schedules to be integrated, and setting the frame length of the integrated schedule to the longest frame length, wherein the schedules to be integrated include at least the transmission schedule for the first cluster and the transmission schedule for the second cluster.
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Specification