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Chain game based synergetic transmission method in wireless sensor network

A wireless sensor and cooperative transmission technology, applied in wireless communication, network topology, power management, etc., can solve problems such as research and methods that have not appeared before

Inactive Publication Date: 2011-04-06
PLA UNIV OF SCI & TECH
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Problems solved by technology

In this way, according to the nature of the interaction between nodes in different stages, designing a cooperative transmission scheme by forming a two-stage chain game will be more in line with the actual situation of wireless sensor networks, but such research and methods have never appeared.

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  • Chain game based synergetic transmission method in wireless sensor network
  • Chain game based synergetic transmission method in wireless sensor network
  • Chain game based synergetic transmission method in wireless sensor network

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Embodiment Construction

[0045] Step 1: In a CDMA-based wireless sensor network, there is a sink node SN located at any location, and multiple sensor nodes are randomly distributed around it. These sensor nodes are clustered according to the clustering protocol, such as using low-power autonomous Adaptive clustering (low-energy adaptive clustering hierarchy, LEACH) protocol, the specific implementation process can be found in "W.R. Heinzelman, A. Chandrakasan, and H. Balarislman. An application-specific protocol architecture for wireless microsensor networks. IEEE Transaction on Wireless Communications, vol.1 , no.4, pp.660-670, 2002", thus forming a wireless sensor network with M clusters, and these M clusters are marked as C 1 , C 2 ,...,C i ,...,C M , where M is a positive integer, i is any positive integer in the range [1, M], in each cluster C i In , there is a cluster head node CH i , N i active member nodes CN in the cluster i，1 , CN i，2 ,...,CN i，j ,..., where N i is a positive inte...

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Abstract

The invention provides a chain game based synergetic transmission method in a wireless sensor network. A synergetic node set can be determined and the distribution of transmission power during local communication of each cluster and trunk communication between each cluster and sink nodes can be realized by establishing a two-stage chain game model, so that network surviving time is prolonged. At the first stage, each cluster is taken as a participant, a model is established by utilizing the idea of a noncooperative game so as to acquire the reasonable transmission power of each cluster, and acosting mechanism based on transmission power and link gain is added to ensure fairness. At the second stage, a model is established for each cluster respectively by utilizing the idea of an allianceformed game, and a stable alliance structure can be acquired by a simple and practicable merge-split algorithm and a Pareto sequence dominated alliance set preference criterion so as to determine thesynergetic node set of the cluster. The member node of each cluster participating in synergism is communicated with the sink nodes after performing distributed space-time coding on information to be transmitted together with a cluster head node.

Description

technical field [0001] The present invention relates to a cooperative transmission method used in a multi-cluster wireless sensor network based on Code Division Multiple Access (CDMA), in particular, a method applicable to a multi-cluster wireless sensor network based on CDMA through Establish a chain game model to realize the determination of the cooperative node set in cooperative transmission, local communication (communication between the cluster head node and member nodes in each cluster) and long-distance communication (communication between each cluster and the sink node) Distributed design method for transmit power allocation. Background technique [0002] Wireless sensor network, as a highly interdisciplinary, emerging and cutting-edge hot research field, has received high attention in recent years. However, sensor nodes usually have limited battery energy, which makes the use of various technologies and protocols generally based on the premise of energy saving. T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/34H04W52/46H04W84/18
Inventor 蔡跃明吴丹杨炜伟
Owner PLA UNIV OF SCI & TECH
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