Simultaneous co-frequency full duplex measurement and control communication networking method

Abstract

According to the same-time same-frequency full-duplex measurement and control communication networking method disclosed by the invention, the channel use efficiency, the networking access timeliness and the anti-interference capability can be improved. According to the technical scheme, a clustering structure is adopted for satellite node networking, a cluster head broadcasts cluster information through a downlink public spread spectrum channel, and all satellites in a cluster share an uplink public spread spectrum channel to bear network control information sent to the cluster head. Satellite compete to access an uplink common spread spectrum channel through a full duplex carrier sensing and conflict avoidance mode; Each satellite applies for a special spread spectrum channel from the cluster head for bearing the measurement and control communication service, and the service transmission between the satellites adopts a same-time same-frequency full duplex mode. A node X completes the network access process through the following steps: (1), cluster head information broadcasting; (2) network access request; (3) network access reply; (4) finding of the neighbor nodes; (5) hand shaking of the neighbor nodes; (6) network access confirmation; (7) updating of the whole network information.

Description

technical field

[0001] The invention belongs to the field of wireless communication, and in particular relates to a method for networking of measurement and control nodes of a measurement and control communication system in the field of aerospace measurement and control communication.

[0002] technical background

[0003] Simultaneous full-duplex CCFD with the same frequency is a new duplex technology emerging in recent years. This technology can realize signal transmission on the same physical channel, that is, the transmission and reception of signals can be realized at the same time and at the same frequency. Compared with the traditional time-division duplex (TDD) and frequency-division duplex (FDD) methods, CCFD technology realizes two-way communication links on the same channel, so it can nearly double the spectral efficiency. After the introduction of full-duplex technology in wireless communication networks, the interference between transceivers is an important fact...

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