Practical environment testing platform for distributed multi-input and multi-output radio communication system

A technology of wireless communication system and real environment, applied in the field of multi-input multi-output platform system implementation, to achieve the effects of low system coupling, small system coupling and high flexibility

Inactive Publication Date: 2008-04-30
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims at the problems caused by using only a simplified wireless channel simulation algorithm in the existing wireless communication system, and provides a real-environment test platform for a multiple-input multiple-output wireless communication system, which enables transmission and receptio

Method used

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  • Practical environment testing platform for distributed multi-input and multi-output radio communication system
  • Practical environment testing platform for distributed multi-input and multi-output radio communication system
  • Practical environment testing platform for distributed multi-input and multi-output radio communication system

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Embodiment Construction

[0023] As shown in Figure 1, the present invention includes a client 1, a sending end 2 and a receiving end 3, and the three are connected to each other through a wired network, so as to transmit data files to be processed and processing parameters such as the number of sending channels, sending data length, and delay . After the sending end 2 receives the data file, it notifies the receiving end 3 to receive the data through the wired network; the sending end 2 and the receiving end 3 transmit the data file through the real wireless channel. The receiving end 3 saves the sampling data received through the wireless channel as a data file, and then sends it back to the client 1 through the wired network. The client 1 refers to the user computer used for baseband processing, and the sending end 2 and the receiving end 3 each use a computer.

[0024] The user computer of client 1 is equipped with mathematical calculation simulation (MATLAB) software. MATLAB adds the binary data ...

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Abstract

The invention provides a true environment test platform for a distributed multi-input multi-output wireless communication system, which includes a client end, a sending end, and a receiving end. The three ends are connected with each other through cabled or wireless local area network; the client end is responsible for forming base band sampling data and sending the data to the sending end through the local area network, receiving sampling data from the receiving end through the local area network, and restoring the original signal through base band treatment; the sending end is responsible for receiving sample data from the client end, informing the receiving end, and sending radio frequency analog signal to wireless channels through antenna; the receiving end is responsible for receiving radio frequency analog signal from the sending end through antenna, and returning the base band sampling data to the client end through the local area network. In signal processing arithmetic study and true wireless channel environment test, the prevention can display the advantage of the tested technology more directly and convectively; signals are able to go through the complete communication process in the true wireless channel environment.

Description

technical field [0001] The invention relates to a distributed-based multiple-input multiple-output wireless communication system platform, belonging to the technical field of multiple-input multiple-output platform system realization. Background technique [0002] A traditional wireless communication system adopts a single input single output system (SISO, Single Input Single Output). This system is limited by Shannon's capacity, so no matter what channel coding or modulation method is used, it is difficult for the wireless channel to meet the requirements of high-speed transmission. [0003] Users' requirements for higher data rates make it urgent to increase the data rate. In recent years, space diversity is mainly used to improve the signal-to-noise ratio and increase the capacity of the system, and this method is to use a multi-element array antenna at the receiving end, and the transmitting antenna uses a cell (that is, a single-input multiple-output system (SIMO, Sing...

Claims

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Application Information

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IPC IPC(8): H04B7/02H04B17/00H04L1/06H04L12/26H04W24/06
Inventor 袁东风王小晨刘云学孙君孙健张彭
Owner SHANDONG UNIV
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