Communication resource allocation method of wireless sensor network

Abstract

The invention discloses a communication resource allocation method of a wireless sensor network. The method includes the first step of network layering, wherein layer numbers are determined by wireless equipment according to the hop distance between the wireless equipment and a wireless concentrator, and meanwhile the layer numbers are dynamically maintained, the second step of time slot allocation, wherein time slot resources in a superframe in the network are allocated in layer, communication initiated in different layers has access to the network in a time division multiple access mode, and communication launched by nodes on the same layer has access to the network in a competitive mode based on carrier sense, and the third step of wireless channel allocation, wherein the different layers can repeatedly use the time slot resources of bay layers on different wireless channels to achieve concurrence access of the difference wireless channels at the same time. The communication resource allocation method can conveniently and effectively achieve the aims of building of a large-scale low-power-consumption multi-hop network and low-power-consumption access of large-scale wireless nodes, can meet application requirements of the wireless sensor network in the field, outdoors, industrial sites and other environments, and provides high-quality efficient wireless sensor network service for users.

Description

technical field [0001] The invention belongs to the technical field of wireless sensor networks, and relates to a method for allocating communication resources of a wireless sensor network with low power consumption, in particular to a method for allocating communication resources of a wireless sensor network for applications in fields such as health care, intelligent agriculture, intelligent buildings, and industry. Background technique [0002] The continuous development and integration of microelectronics technology, computer technology and wireless communication technology have promoted the rapid development of low-power and multi-functional sensors, and developed micro-sensors with perception, computing and communication capabilities. Wireless sensor networks It is composed of sensor nodes deployed in a certain area, and forms a multi-hop self-organizing network system through wireless communication. [0003] Wireless sensor network is a multi-hop self-organizing networ...

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Problems solved by technology

[0005] In recent years, various large-scale, low-cost, and highly reliable short-range wireless networks have emerged, but quite a few methods are still in the theoretical research stage, and there are very few truly practical large-scale wireless sensor networks. In the process, the low power consumption of the multi-hop large-scale network and the efficient and reasonable utilization of network resources have also become one of the important factors restricting the wide-scale application of wireless sensor networks. Therefore, a set of reliable and effective Wireless network communication resource allocation method based on

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