Adaptive load balancing method for wireless sensor network nodes
An adaptive load, wireless sensor network technology, applied in wireless communication, network topology, network traffic/resource management, etc., can solve problems such as the decrease of load balancing degree, achieve network load balancing and prolong survival time.
Active Publication Date: 2015-07-29
兴科迪科技(泰州)有限公司
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[0012] The purpose of the present invention is to provide a wireless sensor network node self-adaptive load balancing method, so as to solve the defect that the existing network load balancing degree declines
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[0029] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described below are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0030] figure 2 shows the wireless sensor network node self-adaptive load balancing method of the present invention, as figure 2 As shown, the wireless sensor network node adaptive load balancing method of the present invention comprises the following steps
[0031] A) Determine the nodes whose communication follows the free space model as the candidate members of each cluster, and elect the candidate members with greater energy in each cluster as the cluster heads;
[0032] B) Each cluster head broadcasts the cluster head message Head_Msg within the cluster radius r, so that the candidate members of each cluster join the corresponding cluster accordin...
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The invention discloses an adaptive radio sensor network node load equalization method, which comprises the following steps of: determining nodes of which communication meets a free space model as candidate members of each cluster, and electing the candidate member with higher energy in each cluster as a cluster head; broadcasting a cluster head message Head_msg in a cluster radius r by using each cluster head, so that the candidate members of each cluster are added into corresponding cluster according to received signal strength indicators (RSSI) respectively; and selecting the cluster heads with relatively greater weights as backbone nodes by using a weight message broadcast by the cluster heads of each cluster, selecting the node with the greatest weight from the backbone nodes as a root node, fusing collected data and transmitting the data to the backbone nodes and then to the root node, and finally transmitting the fused data to a center node by using the root node. By the method, network load equalization and uniform cluster head distribution can be ensured, and the life to live of a network is prolonged.
Description
technical field [0001] The invention relates to wireless sensor network technology, in particular to a wireless sensor network node self-adaptive load balancing method. Background technique [0002] In the wireless sensor network hierarchical routing protocol, network nodes are divided into corresponding clusters according to the clustering algorithm, and each cluster is composed of a cluster head and several members in the cluster; the cluster head is responsible for managing the members in the cluster within the scope of the cluster, controlling the The communication between internal members, the network scalability is good, and the network scale is limited. The cluster head is dynamically selected from a series of nodes. The number and position distribution of cluster heads and how nodes choose to join the cluster have a significant impact on the network load balance. An effective cluster head selection strategy can improve network load balance and the even distribution o...
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IPC IPC(8): H04W28/08H04W84/18
Inventor 白云飞
Owner 兴科迪科技(泰州)有限公司