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Probability type wireless sensor network routing method based on energy harvesting

A wireless sensor and energy harvesting technology, applied in network topology, wireless communication, energy consumption reduction, etc., can solve the problems of node energy limitation and applicability, and achieve the effect of prolonging time and balancing energy consumption

Inactive Publication Date: 2013-07-31
NANJING UNIV OF POSTS & TELECOMM
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AI Technical Summary

Problems solved by technology

The emergence of energy harvesting technology has alleviated the problem of energy limitation of wireless sensor network nodes to a certain extent. Harvesting Wireless Sensor Network, that is, EH-WSN), so it is necessary to design a new routing algorithm

Method used

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  • Probability type wireless sensor network routing method based on energy harvesting
  • Probability type wireless sensor network routing method based on energy harvesting
  • Probability type wireless sensor network routing method based on energy harvesting

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Embodiment Construction

[0036] One: Network Model

[0037] (1) The energy supply part of the node in the energy harvesting wireless sensor network is composed of an energy storage battery and an energy harvesting unit, and the maximum energy value that the battery can store is E max .

[0038] (2) All nodes in the network except the sink node have the same function, each node has a unique ID, and the node can freely adjust its transmission power according to the distance of the receiver.

[0039] (3) The link in the network is symmetrical, and the node can calculate the approximate distance between the two according to the received signal strength RSSI when the transmission power is given.

[0040] (4) The position of the node in the network is relatively stable, and the distance to the sink node basically does not change.

[0041] (5) When the energy level of the node is lower than the maximum energy storage value E max 1% will be in a sleep state and continue to replenish energy. When the energ...

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Abstract

The invention provides a probability type wireless sensor network routing method based on energy harvesting. The method comprises network initialization, round cluster process, node maintenance and exception handling. In the round cluster stage, an algorithm takes energy efficiency into consideration while introducing energy harvesting factors, so that a node with high energy harvesting speed and residual energy is likely to be elected as a cluster head; and a novel probability type routing algorithm is adopted to perform data transmission among clusters in the routing process of the cluster head. Different from the traditional clustering routing which reduces energy consumption to the greatest extent, the method aims to increase the utilization ratio of the harvested energy the greatest extent and introduce novel probability type routing in the cluster head data transmission process, so that the energy harvested by the node can be effectively utilized, the energy consumption of the cluster head node is balanced, the phenomenon that the cluster head node near the converging node is converted into a sleeping state untimely due to high energy consumption is avoided, the work time of the node in the network is prolonged, and the whole performance of the system is improved.

Description

[0001] technical field [0002] The invention relates to a node routing implementation scheme of a wireless sensor network on the premise that the nodes can collect energy, and belongs to the technical field of wireless communication. [0003] Background technique [0004] With the advancement of microelectronics, computer and wireless communication technologies, the production of miniature, low-cost, high-reliability, and multi-functional integrated sensor nodes has become possible in terms of technology and efficiency, and wireless sensor networks (WSN) came into being at this time pregnancy. The wireless sensor network is composed of a large number of cheap micro sensor nodes distributed in a certain area, and is a multi-hop self-organizing network system formed by wireless communication. The emergence of wireless sensor networks merges the logical information world with the objective physical world, greatly expands people's ability to obtain information, and changes th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W40/10H04W84/18
CPCY02B60/50Y02D30/70
Inventor 朱晓荣白永红赵夙朱洪波
Owner NANJING UNIV OF POSTS & TELECOMM
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