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A method for allocating addresses of rfid routing nodes

A technology of node address and distribution method, applied in the direction of electrical components, transmission systems, etc., can solve the problems of increasing redundant paths in tree-like networks, not controlling the range of borrowed addresses, and destroying the "position-address" relationship of sensor networks, etc., to achieve The effect of improving the success rate and reducing the average communication overhead

Inactive Publication Date: 2014-10-01
SOUTH CHINA NORMAL UNIVERSITY
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Problems solved by technology

The existing borrowing address algorithm can increase the node network access rate, but it does not control the range of borrowing addresses, which destroys the "location-address" relationship of the sensor network, increases the redundant path of the tree network, and will cause problems during the operation of the cluster tree routing algorithm. Adding additional routing overhead and node storage overhead does not match the low overhead and low cost of the sensor network

Method used

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  • A method for allocating addresses of rfid routing nodes
  • A method for allocating addresses of rfid routing nodes
  • A method for allocating addresses of rfid routing nodes

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Embodiment Construction

[0035] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings, but the implementation and protection scope of the present invention are not limited thereto.

[0036] The method for assigning RFID routing addresses in this example is divided into three stages: establishment of adjacency list, determination of parent-child relationship between nodes, and assignment of node address values.

[0037] 1. The process of establishing the adjacency list, such as figure 1 Shown:

[0038] First of all, there is a process of interrogating each other between nodes to understand the status of their surrounding neighbor nodes. The time is about 2*L m information transmission time of neighboring nodes. The specific process is as follows:

[0039] (1) The coordinator sends a broadcast command Broad to initiate the establishment process of the adjacency list; the initial value of its Depth is 0.

[0040] (2) Neighbo...

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Abstract

The invention discloses an RFID (Radio Frequency Identification Devices) routing node address allocation method. The method comprises the following processes of establishing an adjacency list, determining a set membership between nodes, and allocating a node address value. The method is characterized in that node weights are introduced to reflect the heterogeneity of node distribution; and the sizes of node address blocks are dynamically allocated according to different node weights. The method sufficiently considers the heterogeneity of the node distribution, can better improve the allocation success rate of node addresses, and can reduce the average communication cost.

Description

technical field [0001] The invention relates to a node address distribution technology in a wireless communication network, and relates to an RFID routing node address distribution method. Background technique [0002] In a wireless communication network, a node must have its own network address to communicate. The RFID wireless sensor network uses the default distributed address allocation mechanism to allocate addresses for nodes. Since the non-uniformity of the network topology is not considered, it is easy to cause a waste of network node address resources. [0003] In the real wireless RFID network environment, due to the random distribution of nodes and the existence of random motion, the nodes will be unevenly distributed, and some nodes have rich address space and some nodes have insufficient address space. To solve this problem, the existing method is as follows: [0004] The SLAR (Single Level Address Reorganization) algorithm is proposed to solve the problem of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/12
Inventor 余松森汤庸杨健肖应旺
Owner SOUTH CHINA NORMAL UNIVERSITY
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