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Wireless device and communication method based on mimo-ofdm, cooperation and cognition

A cooperative communication and cognitive radio technology, applied in the field of wireless communication, can solve problems such as single function, and achieve the effect of strengthening communication transmission capability

Inactive Publication Date: 2018-11-16
TAIZHOU VOCATIONAL & TECHN COLLEGE +1
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Problems solved by technology

However, the problems solved by the above-mentioned solutions still have certain limitations, mainly because the functions of these technologies are relatively single, and the three technologies of MIMO-OFDM, cooperative communication, and cognitive identification communication cannot be comprehensively utilized, and cannot be fully utilized. its combined effect

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  • Wireless device and communication method based on mimo-ofdm, cooperation and cognition
  • Wireless device and communication method based on mimo-ofdm, cooperation and cognition

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Embodiment Construction

[0029] The following will be combined with figure 1 attached figure 2 , attached image 3 , attached Figure 4 And attached Figure 5 The present invention is further described, but it should not be used to limit the protection scope of the present invention.

[0030] Such as figure 1 As shown, the wireless device based on MIMO-OFDM, cooperation, and cognition described in the present invention includes a cognitive radio module 1, a cooperative communication module 2, an OFDM receiver 3 and a MIMO module 4, so The cognitive radio module 1, the cooperative communication module 2, the OFDM receiver 3 and the MIMO module 4 are sequentially connected by communication. The four modules described above process different information processing steps in the communication process of the wireless device, and jointly complete the communication.

[0031] control figure 2 , the cognitive radio module 1 includes a cognitive signal acquisition device 101 , a signal identification tran...

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Abstract

The invention provides a communication method of wireless equipment based on MIMO-OFDM (multiple input multiple output-orthogonal frequency division multiplexing), cooperation and cognition. The communication method comprises the steps of cognizing and identifying an environment signal; sharing other user antennas in a multi-user environment through a certain rule according to the cognized wireless environment signal to obtain all space diversity gain effects; realizing a matrix type non-zero antenna combination of a communication estimation matrix of a transmission path between a communication device and another communication party by using the step of sharing other user antennas in the multi-user environment through the certain rule according to the cognized environment signal, and thus achieving an effect of seamless connection communication. The communication method integrates an MIMO-OFDM technology, a cooperative communication technology and a cognition identification technology, so that the problems of severe signal attenuation, low transmission rate and communication quality and intermittent communication connection mode in a wireless communication process are solved; the communication transmission capacity is greatly enhanced.

Description

technical field [0001] The present invention relates to the field of wireless communication, specifically a wireless device based on MIMO-OFDM, cooperation, and cognition; in addition, the present invention also relates to a communication method of the wireless device based on MIMO-OFDM, cooperation, and cognition . Background technique [0002] In a wireless LAN (Local Area Network, Local Area Network), etc., the OFDM transmission method is used. OFDM (Orthogonal Frequency Division Multiplexing), a transmission method that is a type of multi-carrier transmission method, divides digital data into multiple carriers, modulates each carrier with digital data, and then multiplexes and transmits them. [0003] In the OFDM transmission scheme, the time of each modulation symbol can be extended by using a plurality of carriers, and thus the OFDM transmission scheme is known as a transmission scheme that is less susceptible to multipath interference. [0004] In addition, in the O...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/022H04B7/0413H04B7/0452H04L5/00
Inventor 覃闻铭章仪
Owner TAIZHOU VOCATIONAL & TECHN COLLEGE
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