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Data forwarding control method, device and system

A control method and control device technology, applied in the field of communication networks, can solve the problems of wasting limited energy of sensor nodes, deteriorating data forwarding delay, and routing congestion of aggregation nodes, so as to reduce disorderly competition and avoid rapid energy depletion , to avoid the effect of routing congestion

Active Publication Date: 2011-06-01
CHINA MOBILE GROUP SHAIHAI
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Problems solved by technology

[0005] 1. It is generally assumed that the sensor node selects the mobile sink node by itself. Therefore, in the scenario of multiple mobile sink nodes, multiple source nodes all choose the same mobile sink node for data forwarding, resulting in an unbalanced load state, resulting in Routing congestion of a sink node and rapid depletion of energy;
[0006] 2. This disordered state of autonomy of each sensor node will intensify competition and conflict, especially when there are a large number of sensor nodes, this competition and conflict will reach an unbearable level for the system, and because each node needs to monitor other nodes The communication state not only wastes the precious limited energy of sensor nodes, but also deteriorates the data forwarding delay

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  • Data forwarding control method, device and system

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Embodiment Construction

[0020] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0021] method embodiment

[0022] figure 1 It is a flowchart of an embodiment of the data forwarding control method of the present invention. Such as figure 1 As shown, this embodiment includes the following steps:

[0023] Step 102, when the sensor nodes in the network have data to transmit, send request information to the mobile aggregation node in a time-division, frequency-division or competition manner, where the request information can carry its own ID and required QoS parameter information;

[0024] Step 104, each mobile aggregation node listens to the request message of the sensor node, and judges whether it can forward data for these sensor nodes according to the channel condition. For example, the mobile aggregation node can estimate the maximum transmittable data rate according to the channel condition, and then judge whether it can Satisfy the speed...

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Abstract

The invention discloses a data forwarding control method, device and system. The data forwarding control method comprises the following steps: receiving the summarized information of data forwarding capability of each sensor node, wherein, the summarized information is sent by each mobile gathering point; according to the summarized information, generating a two-dimensional matrix about the mobile gathering points and the sensor nodes; processing the two-dimensional matrix by a competitive algorithm, and ensuring that each line in the two-dimensional matrix contains one nonzero value at most,i.e. each sensor node contains one mobile gathering point at most to forward data; and according to the processing result of the two-dimensional matrix, pairing the sensor nodes and the mobile gathering points. The data forwarding control method, device and system are characterized in that the mobile gathering nodes and the sensor nodes requiring data forwarding are subjected to one-to-one data forwarding pairing, so that the mobile gathering node has balanced load, and the phenomena of route blockage of certain mobile gathering node and quick exhaustion of energy can be eliminated.

Description

technical field [0001] The present invention relates to a communication network technology, in particular to a data forwarding control method, device and system. Background technique [0002] In a wireless sensor network, there are generally two types of nodes as follows: one is a sensor node (Sensor Node), which is equipped with various types of sensors and is responsible for detecting and sensing the surrounding environment; the other is a sensor node. As the sink node (Sink Node), this type of node has the function of collecting information from other sensor nodes. And it is usually equipped with more than two network interfaces. On the one hand, it communicates with the underlying wireless sensor network nodes through the wireless sensor network interface, and on the other hand, it accesses the upper layer network through the connected Ethernet or wireless network. [0003] Aggregation nodes are further divided into fixed aggregation nodes and mobile aggregation nodes. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/08H04W28/14
Inventor 陈霞
Owner CHINA MOBILE GROUP SHAIHAI
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