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Software wireless technology-based heterogeneous network experimental device

A technology of software radio and heterogeneous network, which is applied in the direction of network interconnection, electrical components, data exchange through path configuration, etc., can solve the problems of numerous devices, complex implementation, inability to meet efficient interconnection and heterogeneous network teaching, and achieve Reduce the difficulty of construction, improve performance, and enrich the teaching content

Inactive Publication Date: 2011-04-13
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, there are few existing teaching devices for heterogeneous network interconnection, and most of the platforms used are based on the interconnection between various heterogeneous device gateways, that is, different access gateway devices need to be configured for different protocols, and there are many devices. The implementation is complicated and cannot meet the purpose of efficient interconnection and heterogeneous network teaching

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  • Software wireless technology-based heterogeneous network experimental device
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  • Software wireless technology-based heterogeneous network experimental device

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Embodiment Construction

[0024] The specific embodiment of the present invention is a heterogeneous network experimental device, including wireless sensor network, wireless local area network, FM broadcasting network, Internet, and the experimental framework is as follows: figure 1 shown. Devices include wireless sensor nodes, USRP (Universal Software Defined Radio Peripheral) hardware with GNU Radio software, FM radios, and personal computer systems on the Internet. Among them, USRP hardware and GNU Radio software constitute a general gateway node, USRP hardware is the front-end hardware device, and GNU Radio is the back-end software module. USRP hardware is composed of front-end radio frequency module, ADC / DAC module, and FPGA module. The back-end software module runs on a general-purpose computer. Data is transmitted between USRP hardware and GNU Radio software through the USB2.0 wired standard. The module structure is as follows: figure 2 shown. The wireless sensor node is based on a general t...

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Abstract

The invention discloses a software wireless technology-based heterogeneous network experimental device. The device faces a wireless sensor network, a wireless local area network, a frequency modulation broadcast network and the Internet. Experimental equipment comprises universal gateway nodes, wireless sensor nodes, a frequency modulation receiver and a host on the Internet. A universal gateway node is structured by software wireless technology and comprises front-end hardware equipment and a rear-end software module, wherein the rear-end software module runs on a universal computer; and the front-end hardware equipment and the rear-end software module are connected through a wire. The universal gateway node can communicate with any experimental equipment and also can realize conversion of various heterogeneous network protocols. The invention designs a heterogeneous network experimental device embodiment and also designs a data transmission experimental embodiment on the basis of the heterogeneous network experimental device embodiment. Compared with the traditional device, the software wireless technology-based heterogeneous network experimental device has rich content of courses and an open experiment environment and it is convenient for students to study and research various heterogeneous networks and more heterogeneous networks.

Description

technical field [0001] The invention relates to a teaching experiment device, in particular to a heterogeneous network teaching experiment device for wireless sensor networks, wireless local area networks, FM broadcast networks and the Internet built on the basis of software radio technology. Background technique [0002] With the development of wireless communication technology and the promotion of various applications, a variety of different wireless networks have emerged, such as wireless sensor networks, whose physical layer and MAC layer are based on the IEEE802. , Low-speed wireless applications; such as wireless local area network, its physical layer and MAC layer are based on the IEEE802.11b standard, for medium-distance high-speed, burst data applications. In addition, the Internet, as a global network, relies on the TCP / IP protocol for interconnection, and has been widely used. As a traditional broadcasting method, FM broadcasting network is still popular because ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/46H04L29/08H04L12/28
Inventor 陈贵海游理钊董超杨盘隆吴小兵戴莹周文昌
Owner NANJING UNIV
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