A wireless multi-hop network data transmission method
A data transmission method and wireless multi-hop network technology, which is applied in the field of wireless multi-hop network data transmission, can solve the problems of insufficient wireless multi-hop data transmission efficiency and large network delay, and achieve enhanced data transmission efficiency and small network delay , the effect of reducing the probability of collision
Active Publication Date: 2019-01-04
THE 36TH INST OF CENT MILITARY COMMISSION EQUIP DEV DEPT
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Problems solved by technology
[0006] In short, the problems existing in the existing technology are: the wireless multi-hop network data transmission efficiency is not high enough, the network delay is large
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[0031] Such as figure 1 As shown, the wireless multi-hop network data transmission method of the present invention comprises the following steps:
[0032] (10) Node detection: The master node or border node sends the detection information of the controlled relay area, and other nodes receive, respond and forward the detection message. After several rounds of forwarding and replying, the adjacent nodes within three hops of the master node or border node All know the number of hops and forwarding paths from the master node or border node;
[0033] Such as figure 2 An example of a network topology at time t is shown. To simplify the description, it is assumed that at time t there is a master node 0 that is the first to enter the network, and multiple receiving / relay forwarding nodes n. Solid lines between nodes indicate that there is a wireless link between them. It should be noted that the link length in the figure does not represent the real distance between nodes, but onl...
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The invention discloses a wireless multi-hop network data transmission method, comprising the following steps: (10) node detection: sending detection information by a master node or a boundary node, and receiving, answering and forwarding the detection information by a neighboring node; (20) node role setting: setting the neighboring node as a blocking node, a relay node or a boundary node; (30) establishment of a controlled relay area: establishing the controlled relay area under the boundary condition adopting the boundary node for logic area division; (40) time slot multiplexing allocation: performing information time slot multiplexing allocation on each reliable relay node in the controlled relay area; (50) data transceiving: transmitting data at the allocated information time slot and receiving data at the unallocated information time slot by the reliable relay node; and (60) time slot competition: competing, by the blocking node and the node to which the information time slot is not allocated, for a reserved time slot in a carrier sense mode. The data transmission method is high in transmission efficiency and low in network delay.
Description
technical field [0001] The invention belongs to the technical field of multi-hop wireless network technology data transmission, in particular to a wireless multi-hop network data transmission method with high transmission efficiency and small network delay. Background technique [0002] The multi-hop wireless communication network is flexible in networking, without the need for fixed infrastructure and centralized configuration management support, wireless nodes with limited transmission power can be interconnected and provide connection services through multi-hop self-organization, which is suitable for specific geographical areas and special application scenarios. Expand and extend the network more flexibly and enhance network business processing. Therefore, it has become the main networking mode in the field of emergency communication or tactical communication that does not require pre-established infrastructure, and can be used as an effective expansion and supplement of...
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IPC IPC(8): H04W40/22H04W72/04H04W74/02
CPCH04W40/22H04W72/0446H04W74/02Y02D30/70
Inventor 楼俐范建华
Owner THE 36TH INST OF CENT MILITARY COMMISSION EQUIP DEV DEPT