Method for selecting sensor resource nodes based on energy balance and quality of service (QoS) constraints

A resource node and energy balancing technology, applied in network traffic/resource management, electrical components, wireless communication, etc., can solve problems such as different priorities, achieve the effect of balancing energy consumption, improving reliability and life cycle

Inactive Publication Date: 2011-08-03
WUHAN UNIV OF TECH
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Problems solved by technology

In recent years, grid researchers have proposed many grid resource scheduling algorithms, but these scheduling algorithms are mainly designed for t

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  • Method for selecting sensor resource nodes based on energy balance and quality of service (QoS) constraints
  • Method for selecting sensor resource nodes based on energy balance and quality of service (QoS) constraints

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Embodiment Construction

[0018] Embodiments of the present invention will now be described with reference to the drawings, in which like reference numerals represent like elements.

[0019] Before explaining the sensor resource node selection method based on energy balance and QoS constraints in the present invention, the sensor resource scheduling problem under the multi-dimensional QoS constraint, the energy consumption balance problem in the sensor grid environment, and the sensor grid resource scheduling problem involved in the method are first explained. Environment description, related parameters in scheduling method.

[0020] Sensor Resource Scheduling Problem Under Multidimensional QoS Constraints

[0021] In the sensor grid resource scheduling environment with multi-dimensional QoS constraints, tasks have multiple QoS requirements for resources, and only considering one-dimensional or several-dimensional QoS constraints obviously does not meet the task scheduling requirements. Therefore, in ...

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Abstract

The invention discloses a method for selecting sensor resource nodes based on energy balance and quality of service (QoS) constraints. The method comprises the following steps of: classifying the QoS constraints of a task in a wireless sensor grid environment according to characteristics of limited sensor node energy and resource scheduling in the wireless sensor grid environment; differentiating influence degree of different QoS constraints levels on resource scheduling; preferably scheduling the task with higher QoS constraint level for the tasks with different QoS constraints levels under the condition of according with QoS constraints; for the task with the same QoS constraint level, evaluating a consumption value of resource scheduling in each time when the resources are selected by using an evaluation function; and selecting the task and the resources with the minimum consumption value as a mapping result according to the balance between energy consumption of the sensor nodes and power consumption of each node. In the method, the influence of energy consumption and the QoS constraints in the wireless sensor grid on resource scheduling when resources scheduling is performed is taken into comprehensive consideration.

Description

technical field [0001] The invention relates to the technical field of combining grid computing and wireless sensor networks, in particular to a sensor resource node selection method based on energy balance and QoS constraints. Background technique [0002] In recent years, with the rapid development of wireless technology and sensor technology, advances in microelectronics, embedded systems and other technologies have promoted the rapid development of wireless sensor network technology. A wireless sensor network consists of a series of sensor nodes, each node has the ability of environment perception, data processing and wireless communication. Sensor nodes are battery-powered, have limited computing and storage capacity, and have low communication bandwidth, which limits their ability to process and utilize the resulting data. Grid computing connects geographically distributed and heterogeneous resources to form a virtual high-performance supercomputer, providing users wi...

Claims

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Application Information

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IPC IPC(8): H04W24/08H04W28/24H04W72/12H04W84/18
Inventor 李春林李军
Owner WUHAN UNIV OF TECH
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