Energy-saving routing method based on temperature state awareness in wireless body area network
A wireless body area network and state-aware technology, applied in specific environment-based services, wireless communication, and energy reduction, etc., can solve problems such as high node heat, reduce network life, and affect data transmission, and meet QoS requirements. The effect of balancing energy consumption
Active Publication Date: 2022-07-22
HENAN UNIV OF SCI & TECH
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The above methods do not consider the problems caused by the formation of hot nodes. If the heat of nodes is too high, it will affect the transmission of data. At the same time, if you do not pay attention to the response to hot nodes, the life of the network will be reduced.
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[0044] An energy-saving routing method based on temperature state awareness in a wireless body area network includes the following steps:
[0045] Step 1. Establish a wireless body area network network model
[0046] The wireless body area network consists of N sensor nodes and a sink node. Based on the network topology with a maximum of three hops, the sink node is located in the middle of the network topology. The sensor nodes exchange Hello packets with each other to generate a neighbor table; The sensor node is mainly responsible for forwarding the collected data to the sink node. Sink nodes are mainly responsible for forwarding data.
[0047] Model assumptions:
[0048] (1) All sensor nodes are placed in different positions of the human body, and the sink node is located at the waist, collects corresponding physiological parameter information, and has a specific ID.
[0049] (2) All sensor nodes have the same initial energy and transmission range.
[0050] (3) The sin...
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An energy-saving routing protocol based on temperature state awareness in wireless body area network, considering to meet the QoS requirements of different data types, using multi-hop transmission to balance network energy, and improving the temperature threshold setting of nodes, using two thresholds (high temperature threshold and heat Threshold) controls the temperature rise of the node. According to these two thresholds, the temperature status of the node is divided into normal temperature interval, heating interval, and high temperature interval, and the different data reception probabilities of the node in the three temperature intervals are calculated. Controls the formation of hot nodes. The protocol constructs a benefit function based on multiple parameters such as the remaining energy of the node, the distance from the sink and the probability of data reception, and selects the node with the largest benefit function as the optimal forwarding node of the path to transmit data. This method controls the generation of hot nodes and equalizes the energy of the network.
Description
technical field [0001] The present invention relates to the technical field of wireless body area network, in particular to an energy-saving routing method based on temperature state perception in wireless body area network. Background technique [0002] Wireless Body Area Network (WBAN) is an important branch of Wireless Sensor Network (WSN). WBAN is mainly used in the medical and health field. It can early identify and prevent potential diseases of patients through remote medical monitoring. [1] . WBAN is composed of micro sensor nodes implanted in the human body or worn on the surface of the human body in the form of an ad hoc network. These sensor nodes sense various physiological data of the human body and forward the sensed data to the Sink node. The data is further sent to the medical service terminal in a wireless manner for corresponding processing. [0003] WBAN has the characteristics of small size of sensor nodes, low battery capacity, and it is not easy to rep...
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IPC IPC(8): H04W4/38H04W40/10H04W40/20H04W40/24H04L45/02H04L45/122
CPCH04W4/38H04W40/10H04W40/20H04W40/248H04L45/026H04L45/126Y02D30/70
Inventor 郑国强王欣彤白薇薇郝娇杰郑奕薇冀保峰吴红海马华红张高远沈森傅江涛徐素莉郜彦华范世朝龚卓
Owner HENAN UNIV OF SCI & TECH