Miniaturized multiservice wireless mobile ad hoc network system

A mobile ad hoc network and network system technology, which is applied in the field of miniaturized multi-service wireless mobile ad hoc network systems, can solve the problems of a large range of topology changes, not meeting the characteristics of network mobility, and large network control overhead, etc. It can meet the requirements of multi-service transmission, meet the characteristics of mobility, and achieve the effect of good bandwidth utilization.

Active Publication Date: 2017-03-22
SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the wireless mobile ad-hoc network is a popular research topic at present, there are still major contradictions to be resolved in the face of miniaturized multi-service transmission requirements. Specifically, the topology of the network in the mobile ad-hoc network is coordinated and Autonomy, large range of topology changes, and constant changes in communication links. Miniaturized transmission requires low network complexity and low operating overhead, while multi-service transmission requires bandwidth that varies with different business data and maintains routing and link reliable transmission
Existing wireless mobile ad hoc network syst

Method used

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  • Miniaturized multiservice wireless mobile ad hoc network system
  • Miniaturized multiservice wireless mobile ad hoc network system
  • Miniaturized multiservice wireless mobile ad hoc network system

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Embodiment Construction

[0023] Below in conjunction with the drawings, preferred embodiments of the present invention are given and described in detail.

[0024] The miniaturized multi-service wireless mobile ad hoc network system of the present invention is as figure 1 As shown, there are multiple nodes forming the network topology. Network architecture such as figure 2 As shown, it includes a three-layer architecture of physical layer, link layer and network layer, and each node accesses peripheral user terminal equipment (including portable devices and handheld equipment) to meet the low power consumption requirements of the miniaturized network system, and at the same time use IP to realize data transmission between nodes and user terminal equipment.

[0025] In the present invention, physical layer comprises DSSS (Direct Sequence Spread Spectrum, Direct Sequence SpreadSpectrum) module and OFDM Orthogonal Frequency Division Multiplexing, Orthogonal Frequency Division Multiplexing) module, wher...

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Abstract

The invention provides a miniaturized multiservice wireless mobile ad hoc network system. A physical layer comprises a DSSS module and an OFDM module, wherein the OFDM module provides an OFDM protocol for transmitting service data information with a higher rate requirement, the DSSS module provides a DSSS protocol for transmitting network maintenance and control information of each node and service data information with a lower rate requirement. A link layer employs a TDMA mode to segment time into periodic frames and then segments the frames into DSSS fixation time slot portions, DSSS dynamic time slot portions and OFDM dynamic time slot portions. A network layer provides a multipath route protocol for transmitting all information, employs an active route mode to maintain one-hop neighbor nodes and employs an on-demand route mode to maintain neighbor nodes of more than one hop. The wireless mobile ad hoc network system can simultaneously satisfy a miniaturization transmission requirement and a multiservice transmission requirement.

Description

technical field [0001] The invention relates to the related field of wireless communication transmission, in particular to a miniaturized multi-service wireless mobile ad hoc network system. Background technique [0002] It is very important to quickly restore communication when the basic mobile network has no coverage or is disturbed, such as natural disasters or other various reasons that cause the network infrastructure to fail and become unusable. In addition, in the application of emergency anti-terrorism command, anti-terrorism personnel form an action team, and the team members need to cooperate with each other and share on-site situation information to be able to carry out emergency tasks smoothly. In this regard, with the help of mobile ad hoc network technology, a temporary network can be quickly established and the network infrastructure can be extended, thereby reducing rescue time and damage caused by disasters. It can be seen that most of the wireless mobile a...

Claims

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Application Information

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IPC IPC(8): H04W16/18H04W40/02H04W84/18
CPCH04W16/18H04W40/02H04W84/18
Inventor 钱汉望袁晓兵李宝清刘建坡朱军孙镇江
Owner SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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