Microwave network channel accessing method based on narrowband wave beam directional antenna and system thereof

A channel access method and microwave network technology, applied in the field of microwave network channel access methods and systems, can solve problems such as difficult antennas, network stations that cannot communicate reliably with surrounding nodes, and complex structures

Active Publication Date: 2018-12-04
GUANGZHOU HAIGE COMM GRP INC
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  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, many directional network communication technologies need to rely on the node position information provided by the satellite positioning system or other measures, but it is undoubtedly very dangerous and deadly in the context of military applications; It is difficult to achieve 360° unobstruc...

Method used

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  • Microwave network channel accessing method based on narrowband wave beam directional antenna and system thereof
  • Microwave network channel accessing method based on narrowband wave beam directional antenna and system thereof
  • Microwave network channel accessing method based on narrowband wave beam directional antenna and system thereof

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Embodiment 1

[0067] A microwave network channel access method based on a narrowband beam directional antenna, such as figure 1 shown, including the following steps:

[0068] Step 1: After starting up, the network master station of the naval fleet connects to the multi-hop ad hoc network with super-frame structure, and uses its own time reference as the running time reference of the entire network, that is, the running time of the multi-hop ad hoc network is used as the reference, occupying Broadcast signaling time slots of the first sub-frequency, and use L*N antennas in turn to send synchronization signals of multi-hop ad hoc network time reference information;

[0069] In the multi-hop ad hoc network with overfrequency structure, the superframe structure design is as follows: figure 2 As shown, an overclocking is composed of M sub-frequency, and M represents the preset number of network nodes before the network is opened; the typical setting values ​​of the preset number of network nod...

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Abstract

The invention discloses a microwave network channel accessing method based on a narrowband wave beam directional antenna. The method comprises the following steps of accessing a superframe structure multi-hop Ad Hoc network by a network main station, using the multi-hop Ad Hoc network operation time as a reference, and transmitting a synchronizing signal; capturing the synchronizing signal by other network nodes; if capturing succeeds, acquiring unidirectional synchronization; transmitting a broadcast signal according to an MAC address by means of a broadcast signaling time slot, performing searching on other network node broadcast signaling time slots, and establishing a neighboring link relation; performing distance measuring and performing path transmission time delay correction; performing neighbor discovering and antenna adjustment, and obtaining an optimal transmitting and receiving antenna; randomly accessing a time slot A by a sub-frequency channel, and accessing a small time slot by the channel of each time slot; and in a period, accessing the small time slot by M channels, and performing average distribution according to the MAC address. The microwave network channel accessing method is based on the microwave network and the distributed narrowband wave beam direction antenna and has advantages of realizing reliable and stable transmission in a high-mobility scene, quick real-time adjustment of the directional antenna, and effectively improving comprehensive communication performance of the network.

Description

technical field [0001] The invention relates to the field of microwave network research, in particular to a microwave network channel access method and system based on a narrowband beam directional antenna. Background technique [0002] Maritime fleets will constantly change the network topology structure with different training and combat requirements, so the channel access protocol design of the corresponding distributed wireless network has always been the focus of research, and the technical research of the traditional omnidirectional antenna-based signal broadcast transmission model Already very mature. The directional network that uses directional antennas for signal transmission and reception will undergo tremendous changes in the signal transmission model. The existing channel access schemes based on the wireless signal broadcast model will no longer be applicable to the directional network. It is necessary to study new models that match the new channel model. Effic...

Claims

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Application Information

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IPC IPC(8): H04W16/28H04W48/10H04W56/00H04W74/00H04W74/08
CPCH04W16/28H04W48/10H04W56/001H04W74/008H04W74/0833
Inventor 谢映海王宗谦彭剑
Owner GUANGZHOU HAIGE COMM GRP INC
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