Elastic wave beam forming method based on multi-arm gambling machine in wireless sensor network

A wireless sensor and multi-armed machine technology, applied in radio transmission systems, services based on specific environments, network topology, etc., can solve problems such as inability to realize beamforming and inability to maximize signal power at the receiving end, and achieve improved stability performance, improve the effect of signal transmission power

Active Publication Date: 2019-08-02
ZHEJIANG SCI-TECH UNIV
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Problems solved by technology

However, if a faulty sensor participates in sending the signal, it will inevitably lead to the in

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  • Elastic wave beam forming method based on multi-arm gambling machine in wireless sensor network
  • Elastic wave beam forming method based on multi-arm gambling machine in wireless sensor network
  • Elastic wave beam forming method based on multi-arm gambling machine in wireless sensor network

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Embodiment Construction

[0048] In order to explain the embodiments of the present invention more clearly, the specific embodiments of the present invention will be described below with reference to the drawings. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative work, other drawings can be obtained based on these drawings and obtained Other embodiments.

[0049] The invention provides an elastic beam forming method based on a multi-arm gaming machine in a wireless sensor network, which aims to solve the problem that the signal power sent by a sensor node cannot reach the optimal value at the receiving end due to the existence of a faulty sensor. Under the premise of low energy consumption in the network, a node strategy that can eliminate faulty sensors is found; a distributed beamforming method (or algorithm) based on random grouping (Random Grouping DistributedBeamforming algorithm, referred ...

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Abstract

The invention relates to an elastic wave beam forming method based on a multi-arm gambling machine. The method comprises the following steps of arranging m sensor nodes in a wireless sensor network; when the fault sensor node interference exists, defining a set containing different sensors as arms, wherein there are existed K groups of arms, and K is equal to 2m-2; initializing the number of timesthat each arm is selected and the estimated value of each arm, wherein the probability that each arm is selected at the initial moment is pi = 1/K; selecting one arm randomly according to the selected probability, carrying out one-time phase updating on all sensor nodes in the selected arm according to a random grouping distributed beam forming method, adding the number of selected times corresponding to the selected arm by one, updating a read value corresponding to the selected arm, and updating an estimated value of the selected arm; updating the selected probability of each arm accordingto Boltzmann distribution; and repeating the above steps until arms corresponding to all the normal sensor nodes are selected, and enabling the power of signals sent by the sensor nodes to be optimal.The method is suitable for eliminating fault sensors.

Description

Technical field [0001] The invention belongs to the technical field of wireless communication networks, and in particular relates to an elastic beam forming method based on a multi-arm gaming machine in a wireless sensor network. Background technique [0002] In recent years, with the rapid development of sensor technology, communication technology, information processing technology and embedded technology, wireless sensor networks have gradually been widely used. Wireless sensor network can sense and collect information in the target area, and finally transmit the information to the user terminal. It has a wide range of application scenarios. It is currently mainly used in area detection, medical monitoring, environmental monitoring, industrial monitoring, military defense and many other fields . [0003] The wireless sensor network is composed of a large number of cheap micro sensor nodes deployed in the monitoring area. It is a multi-hop self-organizing network system formed by...

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Application Information

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IPC IPC(8): H04B7/06H04W4/38H04W24/04H04W84/18
CPCH04B7/0617H04W4/38H04W24/04H04W84/18
Inventor 侯健李星灿项梦梵
Owner ZHEJIANG SCI-TECH UNIV
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