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Improved Zigbee network lamination method

A network layering, network technology, applied in network planning, network topology, data exchange network and other directions, can solve the problem of not reflecting the distance relationship between nodes and network coordinators, to reduce computing energy consumption, avoid data implosion, reduce The effect of wasting resources

Inactive Publication Date: 2012-11-28
NANKAI UNIV
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide an improved Zigbee network layering method, which replaces the Zigbee network's own layering method, solves the problem that the number of layers of nodes cannot reflect the distance relationship between the node and the network coordinator, and provides a basis for further optimizing the routing algorithm

Method used

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  • Improved Zigbee network lamination method

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Embodiment 1

[0024] Use NS2 (Network Simulator Version 2) to simulate an improved Zigbee network layering proposed by the present invention.

[0025] To use NS2 for network simulation, you need to use C++ and OTcl language joint programming, that is, you need to write C++ code at the bottom layer to complete the addition or modification of routing protocols and other components, and then write OTcl script simulation. For the specific structure and programming method of NS2, please refer to [1], the book "NS Network Simulation and Protocol Simulation" by Huang Huaji, Feng Suili, Qin Lijiao, etc., People's Posts and Telecommunications Press, 2006.

[0026] The program corresponding to the routing protocol needs to be written in C++ language at the bottom layer to realize the method proposed by the present invention. The program design idea is as follows according to the method of the present invention:

[0027] 1. Initialization

[0028] After the Zigbee network is established, the coordin...

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Abstract

The invention discloses an improved Zigbee network lamination method. The invention discloses the improved Zigbee network lamination method which specifically comprises the following steps of: a Zigbee network is built, wherein the initialization level number of a coordinator is 0, the number of initialization levels of the other nodes is a maximum value (greater than the maximal estimation level number of the network), and the coordinator begins to broadcast lamination affirming frame; the node updated a mechanism and self level number according to the level number after receiving the lamination affirming frame, namely, the level number is updated to be the smaller value between the current level number and forwarding times of the lamination affirming frame; and meanwhile, the lamination affirming frame is forwarded until the lamination affirming frame is to distributed to the whole network. A node possibly receives the lamination affirming frame for multiple times, a frame forwarding control mechanism is introduced in order to prevent resources wasting, namely, not all of the lamination affirming frame are forwarded and only the lamination affirming frame which enables the updated level number to be smaller is forwarded. The Zigbee network lamination method provided by the invention solves the problem that the node level number can not reflect the distance of node and a network coordinator in certain cases.

Description

technical field [0001] The invention belongs to the technical field of wireless sensor networks, and relates to the improvement of Zigbee network layering method. Background technique [0002] Due to the characteristics of wireless sensor networks, optimizing the routing algorithm to prolong the life of the entire network has become a research hotspot today, and the reasonable hierarchical division of the network is the first problem to be solved in routing algorithm optimization. The Zigbee network uses a cluster tree topology. Although each node in this structure also has a layer number, this layer number only reflects the number of generations of child nodes of the coordinator. Under certain circumstances, it can respond The depth in terms of distance, but when the sub-equipment of a certain node is full, the number of layers will not reflect the depth of the distance. Such as figure 1 The situation in : the black node in the figure represents the coordinator, and the w...

Claims

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Application Information

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IPC IPC(8): H04W16/22H04W40/24H04W84/18H04L12/56
Inventor 孙青林庞毅王超陈增强
Owner NANKAI UNIV
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