A routing construction method and system for a low-power lossy network
A construction method, low-power technology, applied in network topology, energy reduction, advanced technology, etc., can solve problems such as limitations, and achieve the effect of reducing communication burden
Inactive Publication Date: 2016-06-29
INST OF INFORMATION ENG CHINESE ACAD OF SCI
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Problems solved by technology
[0006] The technical problem to be solved by the present invention is to provide a routing construction method and system for a low-power lossy network, which is used to solve the limitations of existing RPL routing algorithms
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[0058] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.
[0059] Such as figure 1 As shown, this embodiment provides a routing construction method for a low-power lossy network, including:
[0060] Step 1, according to the storage resources of each node in the network, the running program and the data to be stored during the operation, determine the maximum value N that the non-root node can store the routing table entry;
[0061] Step 2, establishing an uplink route of the network, and placing N in the data packet used to establish the uplink route;
[0062] Step 3, each node determines the storage node according to the routing table entry it needs to store is greater than N or equal to N, by setting the storage node, the routing table entry stored by each node is less t...
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The invention relates to a route establishing method and system of a low-consumption lossy network. The method includes the steps that the maximum value N is determined, wherein N refers to the number of route list items that can be stored in non-root nodes; an uplink route of the network is established, and N is set into data packages of the uplink route; all the nodes determine storage nodes respectively, the numbers of the route list items stored by all the nodes are smaller than N, link information of all the nodes and the storage nodes of all the nodes is sent to a root node, and a downlink route of the network is established based on the link information; all the nodes process the data packages received by all the nodes respectively; the root node collects the route information and the link information stored in the root node and generates a source route from the root node to any node in the network. According to the route establishing method and system of the low-consumption lossy network, the number of route items stored in the non-root nodes are limited to be lower than N and the process of establishing the network is changed, and therefore the problems that when the network is large in scale, some nodes in the RPL storage mode cannot provide storage resources which are large enough, and the length of the source route between the root node and the deep node of the network in the RPL storage mode is too long are solved.
Description
technical field [0001] The invention relates to the technical field of wireless sensor network routing, in particular to a routing construction method and system for a low-power lossy network. Background technique [0002] The wireless sensor network is composed of a large number of low-cost miniature sensor nodes, which cooperate to realize the perception, collection, processing and control of the environment, and are widely used in national defense, military, industrial control, urban transportation, health care, environmental monitoring, and building monitoring and many other fields. [0003] Wireless sensor nodes have very limited capabilities in computing, storage, and communication. Usually, sensor nodes have to take into account many aspects such as operating programs, security mechanisms, and storage, so the originally limited computing and storage resources are very limited. For these reasons, the existing routing protocols such as AODV, OLSR or OSPF cannot meet th...
Claims
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IPC IPC(8): H04W40/02H04W84/12
CPCY02D30/70
Inventor 石志强甘伟孙利民刘燕
Owner INST OF INFORMATION ENG CHINESE ACAD OF SCI