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A clustering routing protocol based energy optimization method for wireless sensor networks

A technology of wireless sensor and optimization method, applied in the direction of network topology, energy consumption reduction, wireless communication, etc., can solve the problems of fast energy consumption of nodes and irreplaceable battery of nodes, and achieve the effect of reducing energy consumption

Active Publication Date: 2019-07-23
NANJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

This method aims at the disadvantages of non-replaceable node batteries and fast node energy consumption, and uses the LEACH protocol optimized by the BIRCH algorithm--LEACH-B algorithm to establish a routing clustering scheme for wireless sensor networks

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  • A clustering routing protocol based energy optimization method for wireless sensor networks
  • A clustering routing protocol based energy optimization method for wireless sensor networks
  • A clustering routing protocol based energy optimization method for wireless sensor networks

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Embodiment Construction

[0031] 1. Architecture

[0032] The operation process of the LEACH protocol takes rounds as a unit and is divided into two stages: cluster structure formation and stable data transmission. Cluster structure formation stages such as figure 1 Shown: All nodes are divided into clusters, and each cluster randomly elects a cluster head. The election process is: Each node randomly generates a value between "0, 1". If the value is less than the threshold T(n), this node is elected as the cluster head. The calculation formula of T(n) is as follows:

[0033]

[0034] In the formula, n is the node number of the current node, p is the ratio of the required number of cluster heads to the total number of nodes in the network; r is the current number of election rounds; G is the set of non-cluster-head nodes in the remaining 1 / p rounds.

[0035] After the election of the cluster head is successful, the cluster head node announces that it is elected as the cluster head through a broadc...

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Abstract

The invention provides a wireless sensor network energy consumption optimization method based on a clustering route protocol and aims to solve a problem of uneven network energy loss of a wireless sensor network. According to the method, cluster formation of an LEACH algorithm and a cluster-head selection algorithm are improved, firstly excellent convergence and global optimization capability of a BIRCH algorithm are utilized to reasonably segment a whole network area into multiple sub areas, two thresholds of the BIRCH, a cluster radius and the quantity of sub nodes of the cluster are mainly utilized to restrain clustering of the LEACH protocol, and a cluster head is selected through taking consideration of residual node energy in the sub areas. Compared with a classic route protocol LEACH, network load balance can be effectively realized through the route protocol LEACH, an energy utilization rate is improved, and a service life of the network is prolonged.

Description

technical field [0001] Aiming at the problem that the nodes existing in the wireless sensor network are difficult to be replaced and the energy consumption is large, the present invention is based on the balanced iterative reduction and hierarchical clustering algorithm (Balanced Iterative Reducing and Clustering using Hierarchies referred to as BIRCH) and the low-power adaptive clustering hierarchical routing protocol (Low Energy Adaptive Clustering Hierarchy referred to as LEACH) proposed an optimization protocol: clustering routing protocol referred to as LEACH-B to reduce energy consumption in wireless sensor networks, the present invention belongs to the network security domain. Background technique [0002] With the rapid development of communication networks, Wireless Sensor Networks (WSN) technology, as the core component of the Internet of Things technology, is a new and challenging field. The application fields of wireless sensor networks are becoming wider and wid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W40/10H04W40/20H04W84/18
CPCH04W40/10H04W40/20H04W84/18Y02D30/70
Inventor 李鹏蒋万元王汝传徐鹤陈国良聂虎卿刘威支寒晓
Owner NANJING UNIV OF POSTS & TELECOMM