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Optimal antenna configuration method for arbitrary message topology MIMO system based on interference zero setting

A technology of optimal antenna and configuration method, applied in transmission system, radio transmission system, diversity/multi-antenna system, etc.

Active Publication Date: 2021-01-15
SHANGHAI MARITIME UNIVERSITY
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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for configuring the number of antennas in an arbitrary message topology MIMO system to solve the problem of antenna configuration in asymmetric and other networks

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  • Optimal antenna configuration method for arbitrary message topology MIMO system based on interference zero setting
  • Optimal antenna configuration method for arbitrary message topology MIMO system based on interference zero setting
  • Optimal antenna configuration method for arbitrary message topology MIMO system based on interference zero setting

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Embodiment Construction

[0102] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0103] Such as Figure 1-Figure 4 As shown, the present invention provides an optimal antenna configuration method for any message topology MIMO system based on interference zeroing, the method includes the following steps, and the overall flow chart is as follows figure 1 Shown:

[0104] S1. Determine the system message topology according to the channel model and the message type transmitted by the transmitter;

[0105] S2. For the intersection space where ...

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Abstract

The invention provides an optimal antenna configuration method for an arbitrary message topology MIMO (Multiple Input Multiple Output) system based on interference zero setting, which is used for carrying out optimal antenna configuration on an MTMR (Multiple Output Multiple Input Multiple Output) system under arbitrary message types (broadcast, multicast and unicast) based on an interference zerosetting technology, and provides a universal computational formula. A system message topology matrix is proposed to analyze antenna configuration, the minimum antenna required by each receiving end is obtained based on a transmitting end interference zero setting technology (IN), and then the minimum antenna required by each transmitting end is further obtained. The specific process of the schemeis as follows: the interference message is placed in the intersection space of the null space of the corresponding channel, and the optimal antenna configuration problem is analyzed according to thedimension characteristic of the intersection space. The simulation maximum spatial multiplexing gain is obtained through the sum rate of the simulation system, the result shows that the theoretical multiplexing gain is basically consistent with the simulation multiplexing gain, and the feasibility of the method is proved.

Description

technical field [0001] The present invention relates to a transmitter interference zeroing method and a receiver linear zero forcing method, and more particularly relates to an interference zeroing-based method for optimal antenna configuration of an arbitrary message topology MIMO system. Background technique [0002] The multi-antenna system can increase the capacity, but too many antennas will also increase the cost. In the case of ensuring the system capacity, it becomes the research point to minimize the number of antennas required by the system. At present, there are many studies on the use of interference alignment and zero-forcing technology based on zero-space intersection to configure system antennas, but they are all special network systems or require the network to be symmetrical, and the interference alignment technology requires both the transmitter and the receiver to be global. channel state information, there are few studies on the optimal antenna configurat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/0413H04B7/0456H04B7/06H04B17/336H04B17/382H04B17/391
CPCH04B7/0413H04B7/0456H04B7/0486H04B7/0617H04B17/336H04B17/382H04B17/3911H04B17/3912
Inventor 吴昌芹刘锋
Owner SHANGHAI MARITIME UNIVERSITY
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