Wireless communication network transmission structure and method

Abstract

The invention discloses a wireless communication network transmission structure comprising a main channel for transmitting data between a center node and a slave node and an auxiliary channel for transmitting beaconing from the center node to the slave node, wherein the matched auxiliary node is started up according to a beaconing frame signal after the receiving end of the auxiliary channel receives the beaconing frame signal sent from the center node. In the communication process of the transmission structure, the event-driven achieved by a beaconing frame replaces a blind receiving action in channel receiving, the inefficient energy consumed by the slave node in the blind receiving process is eliminated, the energy efficiency and the service life of the transmission structure are improved.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a transmission structure and method for beacon transmission in a star topology wireless communication network. Background technique [0002] At present, the network of star topology and master-slave structure widely appears in many applications such as wireless sensor network and human body wireless sensor network. In applications where the volume and energy of each node device in the network are strictly limited, it is necessary to improve energy efficiency as much as possible, that is, to make every part of energy consumption effective, thereby prolonging the service life of node devices. The resource constraints of the central node are relatively loose, so the slave nodes with strictly limited resources become the focus of optimization. [0003] In communications, beaconing is a very energy-inefficient class of operations. In a conventional communication scheme, the rec...

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Problems solved by technology

For the latter type of events, the current scheme basically adopts the method of blind reception by the receiver, which brings a huge burden on power consumption

During the time period when the receiver receives blindly but the sender does not act, the energy consumed by the node is useless energy, which greatly deteriorates the energy efficiency

Some designs have also taken measures to enable the operation of blind receiving and listening only at certain moments, or reduce the duty cycle of the listening operation, etc., to obtain a small improvement in power consumption and energy efficiency, but it will make the The response time of the beacon frame is prolonged, and there is even the possibility of missing the beacon frame

These methods are impractical and unreliable in networks where emergency wake-up is required

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