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Method for constructing space-division multiplexing time-division multiple access model of air-sea oriented ad-hoc network

A time-division multiple access and self-organizing network technology, applied in network topology, network planning, electrical components, etc., can solve the problems of less research on space-division multiple access and lack of model support

Inactive Publication Date: 2016-12-07
SHIJIAZHUANG TIEDAO UNIV
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, great progress has been made in the research of space division multiple access, but there is a lack of model support, and there are few studies on space division multiple access in wide-area MANET application scenarios such as sea and air directional ad hoc networks

Method used

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  • Method for constructing space-division multiplexing time-division multiple access model of air-sea oriented ad-hoc network
  • Method for constructing space-division multiplexing time-division multiple access model of air-sea oriented ad-hoc network
  • Method for constructing space-division multiplexing time-division multiple access model of air-sea oriented ad-hoc network

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Embodiment Construction

[0035] refer to figure 1 , the implementation steps of the construction method of the sea-air directional self-organizing network space division multiplexing time division multiple access model of the present invention are as follows:

[0036] Step (1): SDMA abstract topology construction

[0037] An abstract network topology and its corresponding adjacency matrix A are constructed according to the given SDMA time slot allocation table. The specific construction steps are:

[0038] Step (1a): A space division multiple access time slot allocation table is given according to specific task requirements. Assuming that the space division multiple access time slot allocation table given is shown in the following table:

[0039] Table 1: Space Division Multiple Access Time Slot Allocation Table

[0040]

[0041] Note: i-j in the table means that in the current time slot, node i sends information and node j receives information, which means that node

[0042] i and j are adjacen...

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Abstract

The invention discloses a method for constructing a space-division multiplexing time-division multiple access model of an air-sea oriented ad-hoc network. First of all, a time-division multiple access abstract topology is constructed according to a given space-division multiple access time slot distribution table; then an oriented neighbor discovery mechanism is designed, and based on a mechanism node, a network topology structure can be obtained; and finally, by use of subgraph isomorphism, a mapping relation between the abstract topology and an actual network topology node is solved, and the space-division multiplexing time-division multiple access model is constructed. According to the model, a network node can determine its own work time slot and its own communication object so as to realize space-division multiple access. Theoretical model support can be provided for space-division multiple access of the air-sea oriented ad-hoc network, and the frequency spectrum utilization rate and the network performance are effectively improved.

Description

technical field [0001] The invention relates to a wireless communication technology, in particular to a construction method of a sea-air directional ad hoc network space division multiplexing time division multiple access model. Background technique [0002] The sea-air directional ad hoc network communication channel is a wireless broadcast channel, which is easily interfered at the physical layer, resulting in a decrease in network throughput and data forwarding efficiency, because the physical layer uses omnidirectional antennas to send and receive data. If the physical layer of the sea-air directional ad hoc network adopts directional antennas, it can not only effectively increase the distance of single-hop transmission and improve the data transmission rate, but also use the narrow directional beams generated by directional antennas to realize space division multiple access, that is, multiple nodes without Interfering with simultaneous same-frequency communication. Spa...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/22H04W72/04H04W72/12H04W84/18
CPCH04W16/22H04W72/0446H04W84/18H04W72/535
Inventor 陶凯和瑞亚王伟明张之猛
Owner SHIJIAZHUANG TIEDAO UNIV