Antenna array block generalized spatial modulation transmission method oriented to millimeter wave railway communication

A generalized spatial modulation and antenna array technology, applied in the field of high-speed rail communication, can solve problems such as wireless communication systems that are not considered, and achieve the effects of increasing frequency band utilization, improving frequency band utilization, and improving spectrum resource utilization.

Pending Publication Date: 2019-02-12
NANJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0007] The above two patents only considered the spatial modulation technology, and did not consider the combination of millimeter wave and spatial modulation technology and generalized spatial modulation technology for wireless communication systems

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  • Antenna array block generalized spatial modulation transmission method oriented to millimeter wave railway communication
  • Antenna array block generalized spatial modulation transmission method oriented to millimeter wave railway communication
  • Antenna array block generalized spatial modulation transmission method oriented to millimeter wave railway communication

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Embodiment 1

[0047] Assuming that the following conditions are considered during the implementation of the specific plan, the base station side is equipped with 16 uniform planar array antenna modules, and the train top vehicle station is equipped with 4 uniform linear array antenna arrays. The antenna array of each uniform plane array of the base station transmits a beam to carry modulation information, and multiple activated antenna arrays simultaneously serve the uniform linear array antenna array on the top of the train, and the uniform plane is not activated at the same time The antennas of the array remain silent and are not used to send any information.

[0048] In order to facilitate analysis and calculation, the system model of the present invention is simplified as follows, assuming that each receiver on the train is an independent virtual user. The base station side transmission adopts generalized spatial modulation technology, and each time slot starts from N T Choose N from a uni...

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Abstract

The invention provides an antenna array block generalized spatial modulation transmission method oriented to millimeter wave railway communication. The method comprises the following steps: accordingto train running position information, calculating an antenna array response vector; calculating a transmitting beam weight vector and a receiving beam weight vector; solving a channel matrix under millimeter wave environment; determining the number of antenna array blocks which need to be activated by one time slot transmitter; and according to a maximum likelihood test algorithm, performing demodulation decoding at a receiver. The method provided by the invention is a multi-antenna transmission method aiming at a millimeter wave railway communication system in the field of wireless communication, can activate a plurality of antenna array blocks to transmit data information, and further improves utilization rate of spectrum resource.

Description

Technical field [0001] The invention relates to a millimeter-wave-oriented communication transmission method in the field of wireless communication, specifically, a generalized spatial modulation transmission method for antenna array blocks for millimeter-wave railway communications, and more specifically a generalized spatial modulation technology A method for activating multiple antennas to transmit data information in blocks belongs to the field of high-speed rail communication technology. Background technique [0002] The wireless mobile communication system uses spatial modulation technology to improve spectrum efficiency. This technology not only modulates the transmission data stream through traditional constellation, but also carries information through the antenna index. It is a new physical layer technology. Spatial modulation technology (SM), as a new multiple-input multiple-output antenna technology (MIMO), has been extensively studied in the field of wireless communi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/06H04B7/08H04B7/0413H04W4/42
CPCH04B7/0413H04B7/0617H04B7/0691H04B7/0695H04B7/086H04B7/0874H04B7/088H04W4/42
Inventor 徐友云王武同王小明李大鹏
Owner NANJING UNIV OF POSTS & TELECOMM
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