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A Transmission Scheduling Method for Maximum Network Lifetime Satisfied with Fairness Conditions

A technology of transmission scheduling and lifetime, applied in electrical components, climate sustainability, advanced technology, etc., can solve problems that do not take into account fairness requirements, and achieve the effect of reducing computational complexity

Active Publication Date: 2017-11-10
JILIN UNIV
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Problems solved by technology

[0005] The present invention provides a transmission scheduling method for maximizing the network lifetime that satisfies fairness conditions, so as to solve the problem that the current methods for maximizing the network lifetime do not take into account the requirement of fairness, and cannot fully meet the requirements of various sensor nodes in practical applications. Problems with situations with different resource requirements

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  • A Transmission Scheduling Method for Maximum Network Lifetime Satisfied with Fairness Conditions
  • A Transmission Scheduling Method for Maximum Network Lifetime Satisfied with Fairness Conditions
  • A Transmission Scheduling Method for Maximum Network Lifetime Satisfied with Fairness Conditions

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Embodiment Construction

[0065] include:

[0066] (1) Wireless body area network, which is a network that takes the human body as the monitoring object. Several sensor nodes with different functions are placed on the body surface or corresponding positions in the body to periodically monitor and record various physiological information. , each sensor node transmits the collected data to the aggregation node AP (Access Point) through Bluetooth, Zigbee, ultra-wideband or other human body communication technologies, and the AP then transmits the information to the remote control center through the external network;

[0067] Telemedicine monitoring is the most typical application of wireless body area network, especially for continuous monitoring and recording of physiological parameters of patients with chronic diseases (such as heart disease, diabetes and asthma, etc.), and real-time collection of human body parameters through sensor nodes placed on the human body. Various physiological parameters, such...

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Abstract

The invention relates to a transmission scheduling method for network lifetime maximization that satisfies a fairness condition, and belongs to the field of wireless communication. The method includes modeling the problem of sensor node selection into a constraint Markov decision process, using a Bellman equation in dynamic programming to solve a CMDP problem, reducing computation complexity to obtain a final constraint optimal lifetime and an optimal strategy, and determining a sensor node selected at each time slot. Aiming at a circumstance that a wireless body area network needs to satisfy certain fairness in practical application, the method in the invention overcomes the defect of a conventional transmission scheduling method which only considers lifetime maximization but neglects fairness, maximizes the lifetime of the network while ensuring satisfaction of a fairness constraint condition, and thus is more suitable for a circumstance of monitoring multiple physiological parameters of a patient.

Description

technical field [0001] The invention relates to the field of wireless communication, and relates to a signal transmission scheduling method oriented to a wireless body area network. Background technique [0002] Wireless Body Area Network (WBAN, Wireless Body Area Network), as an important part of the Internet of Things and the application of wireless sensor networks in medical monitoring, etc., has gradually become the focus of attention. Because the sensor nodes that make up the wireless body area network are powered by batteries, the energy is strictly restricted, so designing an efficient and fair transmission scheduling method to prolong the network lifetime is the focus and hotspot of body area network research, which not only has theoretical research significance, but also It has important practical application value. [0003] Dagher et al. proposed an iterative algorithm for maximizing the network lifetime, reduced the problem of maximizing the network lifetime to a...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W74/04H04W40/10
CPCY02D30/70
Inventor 胡封晔尹颖奇杜大鲲臧达霏邓云蕾赵利英王志军杜宇王丰王璐
Owner JILIN UNIV
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