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A Reliable and Energy-Efficient Hierarchical Routing Implementation for Wireless Body Area Networks or Energy-Constrained Small Wireless Sensor Networks

A wireless sensor network, wireless body area network technology, applied in the field of communication, can solve the problems of uneven energy consumption, low effective utilization of energy, short network life cycle, etc. Effect

Active Publication Date: 2017-11-03
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] The present invention aims to solve the problems of low effective utilization rate of energy, uneven consumption of energy in various parts of the network, and short network life cycle in the existing reliable and energy-saving hierarchical routing method for wireless body area network or energy-constrained small wireless sensor network problem, thus providing a reliable and energy-efficient hierarchical routing implementation for wireless body area networks or energy-constrained small wireless sensor networks

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  • A Reliable and Energy-Efficient Hierarchical Routing Implementation for Wireless Body Area Networks or Energy-Constrained Small Wireless Sensor Networks
  • A Reliable and Energy-Efficient Hierarchical Routing Implementation for Wireless Body Area Networks or Energy-Constrained Small Wireless Sensor Networks
  • A Reliable and Energy-Efficient Hierarchical Routing Implementation for Wireless Body Area Networks or Energy-Constrained Small Wireless Sensor Networks

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specific Embodiment approach 1

[0050] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 1. Reliable energy-saving hierarchical routing implementation method for wireless body area network or energy-constrained small wireless sensor network. In wireless body area network or energy-constrained small wireless sensor network, it consists of the following steps accomplish:

[0051] Step 1, initialization: the sink node (sink node) obtains the initial topology structure of the network and the remaining energy information of each node by flooding;

[0052] Each sensor node obtains the hop information and neighboring node information required by its own distance from the sink node;

[0053] After the initialization process is completed, the sink node obtains the topology information of the entire network and the remaining energy information of each sensor node; each sensor node obtains its adjacent nodes and the distance information from the sink node;

[0054] Step 2. The sink node uses the power P TX Broadcast ...

specific Embodiment approach 2

[0066] Embodiment 2. The difference between this embodiment and the method for establishing a reliable and energy-saving hierarchical route for wireless body area network or energy-constrained small wireless sensor network described in Embodiment 1 is that in step 7, cluster removal is performed. After other sensor nodes outside the head receive the broadcast information of the cluster head, they take it as their own parent node, the sensor node joins the cluster, and becomes the child node of the cluster head as follows:

[0067] If the sensor node receives the broadcast information of one cluster head, execute step 71; if the sensor node receives the broadcast information of more than one cluster head, execute step 81;

[0068] Step seventy-one, take the cluster head as its own parent node, and send a signal containing its own node ID information requesting to join, and execute step seventy-two;

[0069] Step 72: After the node serving as the cluster head receives the reques...

specific Embodiment approach 3

[0074] Embodiment 3. The difference between this specific embodiment and the method for establishing a reliable and energy-saving hierarchical route for wireless body area network or energy-constrained small wireless sensor network described in Embodiment 1 is that the wireless Reliable energy-efficient hierarchical routing for body area networks or small energy-constrained wireless sensor networks is maintained by:

[0075] In order to avoid excessive energy consumption of the node serving as the cluster head, the sink node re-broadcasts the updated routing information at regular intervals, and each node re-competes for the cluster head. Competition; if a cluster head node has no child nodes, it still participates in the cluster head competition.

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Abstract

The invention provides a reliable energy-saving hierarchical routing implementation method used for a wireless body area network or an energy-limited small wireless sensor network, and relates to the field of communication. The reliable energy-saving hierarchical routing implementation method used for the wireless body area network or the energy-limited small wireless sensor network aims to solve the problems that in the prior art, the energy is low in effective utilization and uneven in energy consumption on all-part of the network, and the network is short in life cycle. According to the method, the cycle is initialized so that sensor nodes in the network can obtain corresponding adjacent node information of the sensor nodes, and the Sink node obtains the whole network information and estimates the network condition; the nodes participating in competing for the cluster heads in the competition cycle compete and become the cluster heads by the adoption of a delay window mechanism, and the nodes becoming the cluster heads meet the requirements of the channel, position, energy and the like; the other nodes select appropriate cluster heads to guarantee that each node has the cluster head corresponding to the node in the cluster forming cycle, and no overlapping exists in the clusters; the cluster routing builds reliable routing transmission through an asteroid topological structure.

Description

technical field [0001] The invention relates to the field of communications, in particular to a routing implementation method. Background technique [0002] Wireless Body Area Network (WBAN) is a new type of wireless sensor network (WSN), which refers to a network composed of wireless sensors distributed on the surface or in the body of a person, which can be used to detect human health or track the movement state of the human body. WBAN has important applications in medical, entertainment, military and daily life. WBAN is often used to monitor the physical indicators of the elderly in the medical field. Wearable sensors are used to collect EEG, ECG and other indicators and transmit them to the sink node. The sink node then preliminarily processes the data and then acts as a gateway to transmit the data through the Internet or cellular network. To the medical center, professionals in the medical center can monitor the patient's daily physical index status, and the patient c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W40/10
CPCY02D30/70
Inventor 李卓明毛圣歌沙学军叶亮白旭佟兴
Owner HARBIN INST OF TECH
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