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A Filter Bank Multi-Carrier Method Based on Offset Quadrature Amplitude Modulation

A technology of offset quadrature amplitude and filter bank, applied in the field of multi-input multi-output multi-carrier communication, it can solve the problems of imaginary part interference of FBMC-OQAM receiving end signal, so as to eliminate the imaginary part interference and reduce the system bit error rate Effect

Inactive Publication Date: 2017-04-19
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

[0005] For the above defects or improvement needs of the prior art, the present invention provides a filter bank multi-carrier method based on offset quadrature amplitude modulation, thereby solving the technical problem of imaginary part interference in the FBMC-OQAM receiving end signal

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  • A Filter Bank Multi-Carrier Method Based on Offset Quadrature Amplitude Modulation
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  • A Filter Bank Multi-Carrier Method Based on Offset Quadrature Amplitude Modulation

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Embodiment Construction

[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0029] The embodiment of the present invention includes a data encoding step, a real-virtual interleaved modulation step, a data sending step and a data receiving step.

[0030] proceed as figure 1 Shown is the space-frequency block code scheme of FBMC-OQAM for real data encoding, with a guard interval inserted between two data blocks. In the embodiment of the present invention, the real numbe...

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Abstract

The invention discloses a filter bank multi-carrier method based on offset quadrature amplitude modulation, and belongs to the field of multi-carrier communication of a multi-input and multi-output filter bank. The technical problem that the imaginary part interference exists in a filter bank multi-carrier receiving end signal based on offset quadrature amplitude modulation is solved by using a space frequency block code scheme and a space time block code scheme of the filter bank multi-carrier method based on offset quadrature amplitude modulation. The filter bank multi-carrier method based on offset quadrature amplitude modulation comprises a data encoding step, a real and virtual interleaving modulation step, a data transmission step and a data receiving step. The effect caused by imaginary part interference of the filter bank multi-carrier receiving end signal based on offset quadrature amplitude modulation under a diversity scheme can be significantly reduced under the condition of ensuring the high-frequency spectrum utilization rate, and the error rate of the system is reduced.

Description

technical field [0001] The invention belongs to the field of multi-input multi-output multi-carrier communication, and more specifically relates to a filter bank multi-carrier method based on offset quadrature amplitude modulation. Background technique [0002] With the development of cellular mobile communication, Internet and multimedia services, the number of users has increased significantly, and the effective use of spectrum resources has become increasingly important. Multiple-Input Multiple-Output (MIMO) technology can greatly increase the data throughput and transmission distance of the system without increasing bandwidth or total transmission power consumption. Currently commonly used MIMO technologies include space division multiplexing, space diversity, beamforming, and precoding. [0003] In recent years, research on the combination of Filter Bank MultiCarrier-Offset Quadrature Amplitude Modulation (FBMC-OQAM) technology and MIMO technology based on offset quadr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/34H04L27/26
Inventor 屈代明李俊江涛
Owner HUAZHONG UNIV OF SCI & TECH
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