Energy-efficient route of wireless sensor network

A wireless sensor and sensor node technology, applied in the field of energy-saving control routing algorithm, can solve problems such as large energy consumption, high network cost, and imbalance

Inactive Publication Date: 2014-03-05
TIANJIN POLYTECHNIC UNIV
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  • Application Information

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Problems solved by technology

[0004] Aiming at the shortcomings of existing mobile routing algorithms, such as large energy consumption, imbalance, and high network costs, a wireless sensor network energy-saving routing (MEERP, Mobile Energy-Efficient Routing Protocol) was invented.

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Embodiment Construction

[0035] In order to make the technical solutions and advantages of the present invention clearer, the implementation manners of the present invention will be further described below in conjunction with the accompanying drawings.

[0036] The present invention adopts NS2 emulation platform to implement the MEERP algorithm, and concrete process is as follows:

[0037] 1) First establish a Cartesian coordinate system in the monitoring area, and calculate the optimal number of clusters according to the radio model. The network is divided into corresponding number of cells, and the cells are numbered. Each cell is a cluster. Nodes judge which cluster they belong to based on their geographic location information.

[0038] 2) In each cluster, the cluster head is elected according to the weighted sum of the remaining energy of the node and the coordinate distance from the node to the center of gravity. The more current remaining energy, the closer the node to the coordinate position o...

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Abstract

The invention provides an energy-efficient routing algorithm (MEERP) for a wireless sensor network, and belongs to the technical field of the wireless sensor network application. This algorithm introduces a mobile sink node and a mobile relay node, considers a size of the network and a quantity of the nodes, and divides the network into several square areas; and then according to a weight sum of node residual energy and a cluster barycentric coordinate distance, a cluster head is selected. The nodes in a grid is communicated with a cluster head node through a multi-hop manner; a controllable mobile strategy is used for the mobile sink node, and when the mobile sink node moves to near the cluster head node, the cluster head node directly sends collected data to the mobile sink node; and a regular mobile manner is used for the mobile relay node in the network, and when the mobile relay node moves to a same position as a sensor node, the mobile relay node takes a forwarding task of all packets of the sensor node, but the sensor node only sends data which are sensed by the sensor node. This algorithm is mainly used in the wireless sensor network route control field.

Description

technical field [0001] The invention relates to an energy-saving control routing algorithm used in a wireless sensor network. The invention belongs to the technical field of wireless sensor network routing control algorithm. Background technique [0002] Wireless sensor network has become one of the research hotspots of wireless communication network. The data transmission in the network is inseparable from the routing protocol, and the traditional IP network and wireless Ad hoc network routing protocols are not suitable for wireless sensor networks. At the same time, due to the limited computing and processing performance, storage performance, and communication capabilities of sensor nodes in wireless sensor networks; the battery energy carried by nodes is limited, and they are often in very harsh environments, making it difficult to obtain secondary replacements; Once the node energy is exhausted, it will lose its use value. Therefore, it is very necessary for wireless ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W40/10H04W40/20H04W40/24H04W52/02H04W84/18
CPCY02B60/50Y02D30/00Y02D30/70
Inventor 林志贵张惠麒李敏李琳
Owner TIANJIN POLYTECHNIC UNIV
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