Routing method of radio sensor network

A wireless sensor and network technology, applied in data exchange networks, transmission systems, digital transmission systems, etc., can solve the problem of large energy consumption of nodes, and achieve the effect of solving large energy consumption and balancing energy consumption.

Inactive Publication Date: 2007-06-27
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology

[0005] In order to overcome the deficiency of large energy consumption of nodes in the prior art, the present invention provi

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  • Routing method of radio sensor network

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Embodiment Construction

[0021] The specific implementation is as follows: Before the establishment of the network, all nodes are first encoded, and each node is required to have an independent ID. The ID of the sink node S is 1, and the ID of other nodes is greater than 2. Set the gradient value of all nodes INIT=255, the initial The working time is 0, the sink node S gradient value INIT=0, the working efficiency N=1, and the waiting time TIME=30.

[0022] Referring to Figure 1(a), when the network is established, the aggregation node S first broadcasts to the network a message header, task type kind=0, task sending point gradient value INIT=0, task sending point ID=1, task sending point works Efficiency N=1, waiting time T=30 path information of several parameters.

[0023] All nodes in the network that have heard the path information cache their parameters. After judging that the node’s network gradient INIT=255 is greater than the information’s gradient INIT=0, set the node’s network gradient INIT...

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Abstract

The invention discloses a wireless sensor network routing method, for forming a network of the wireless sensor network and transmitting & receiving the signal, which includes the following steps: pre-allocating independent ID for each node, then creating wireless sensor network from clustering nodes to outside, increasing the gradient in turn, calculating along the nodes efficiency N on the way, and in their own routing table, recording the communicated front gradient node ID and the corresponding efficiency N. If it need to send data, the data is transmitted along the decreasing gradient direction, with the transmission path decided by the node, based on the probability P, the front gradient node in the routing table is selected as a communications target, so as to average the node working times, uniform the node energy consumption and stablish the network.

Description

technical field [0001] The invention relates to a wireless sensor network routing method. Background technique [0002] The routing method is used to select the transmission path for collecting information and control messages, and to determine which nodes form the forwarding path. All nodes on the path consume a certain amount of energy to forward data. How to dynamically form an optimal route based on energy efficiency has always been one of the core issues in sensor networks. [0003] The document "Research Progress on Routing Algorithms in Wireless Sensor Networks" Journal of Fujian Institute of Technology, Issue 6, December 2005, p. 603" discloses a wireless sensor network algorithm. Directed Diffusion DD described in the article is a data-centric routing algorithm (see Figure 3), the data is named in the form of attribute pairs, and the sink node S sends "interests" to all sensor nodes, that is, attributes describing different tasks value, which each sensor node kee...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L12/28H04L12/721
Inventor 张文涛江曼毛尧辉李建华李哲伍文杰杨红红
Owner NORTHWESTERN POLYTECHNICAL UNIV
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