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Multi-user generalized space modulation system linearity zero-forcing precoding method

A generalized spatial modulation and zero-forcing precoding technology, which is applied in the field of linear zero-forcing precoding of multi-user generalized spatial modulation systems, can solve the problem that multi-user generalized spatial modulation systems cannot be applied, and achieves improved bit error performance, accurate detection, The effect of increased system capacity

Active Publication Date: 2016-08-03
河南兰舟信息技术有限公司
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Problems solved by technology

[0005] In order to solve the problem that the current traditional zero-forcing precoding method cannot be applied to the multi-user generalized spatial modulation system, the present invention proposes a linear zero-forcing precoding method applied to the downlink of the multi-user generalized spatial modulation system

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  • Multi-user generalized space modulation system linearity zero-forcing precoding method
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  • Multi-user generalized space modulation system linearity zero-forcing precoding method

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Embodiment Construction

[0015] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0016] The present invention proposes a linear zero-forcing precoding method applied to the downlink of a multi-user generalized spatial modulation system, which is applied to figure 2 The multi-user generalized spatial modulation system shown. Such as figure 1 As shown, the linear zero-forcing precoding method applied to the downlink of a multi-user generalized spatial modulation system includes the following steps:

[0017] Step S1: Establish a multi-user generalized spatial modulation system, group the antennas of the transmitting end in the downlink of the multi-user generalized spatial modulation system, and each group of transmitting antennas uses generalized spatial modulation to serve a specific user, that is, ...

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Abstract

The invention discloses a multi-user generalized space modulation system linearity zero-forcing precoding method. The method comprises the following steps: establishing a multi-user generalized space modulation system, and grouping antennas at a link sending end, wherein each group of sending antennas serve one receiving end by use of generalized space modulation; performing dimension reduction on a channel gain matrix of a sending signal matrix in a system so as to obtain an equivalent channel gain matrix and an equivalent sending signal matrix; and by use of a dimension reduction matrix, performing zero-forcing precoding processing on the sending signal matrix at the sending end, and transmitting signals by use of the equivalent channel gain matrix so as to eliminate interference between users and interference between channels at the same time. The method provided by the invention can effectively improve error code performance of the system and the capacity of the system.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a linear zero-forcing precoding method for a multi-user generalized space modulation system. Background technique [0002] Spatial modulation technology activates an antenna at the transmitting end of the link for information transmission, maps part of the transmitted information to the traditional digital modulation constellation diagram, and maps the remaining part to the space dimension generated by the antenna serial number, effectively solving the inter-channel interference The problem. The generalized spatial modulation technology can enable two or more antennas to be activated at the link transmitting end, which removes the restriction that the number of antennas at the link transmitting end must be a power of 2 in space modulation, and increases the diversity gain at the same time, effectively improving the frequency spectrum. efficiency, but it inevitably introduce...

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Application Information

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IPC IPC(8): H04B7/04H04B7/06H04B7/08
CPCH04B7/0456H04B7/0626H04B7/0857
Inventor 陆彦辉王顺然杨守义韩书君
Owner 河南兰舟信息技术有限公司
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