Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

MIMO system and application method thereof for adaptive antenna selection

A technology of adaptive antenna and application method, which is applied in the field of communication and can solve the problem of low efficiency of antenna optimization selection

Inactive Publication Date: 2010-10-20
XI AN JIAOTONG UNIV
View PDF3 Cites 107 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a fast self-adaptive optimization method and signal processing method for a large-scale MIMO antenna array system and its antenna sub-array operating under 60GHz channel conditions, so as to solve the problem of the above-mentioned application background of the existing MIMO system. Antenna optimization selects the problem of low efficiency, thereby effectively reducing the power consumption and cost of the MIMO system, and improving the robustness of the system. Fast antenna selection problem

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • MIMO system and application method thereof for adaptive antenna selection
  • MIMO system and application method thereof for adaptive antenna selection
  • MIMO system and application method thereof for adaptive antenna selection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] The present invention is described in further detail below in conjunction with accompanying drawing:

[0041] see figure 1 , 2 , 3, 4, the MIMO antenna selection module disclosed in the present invention adopts the random approximation optimization algorithm of the sequential mode to quickly optimize the selection of the transceiver antenna sub-array of the 60GHz large-scale antenna array system, thereby effectively reducing the complexity of system implementation and cost. In order to maximize the beamforming gain of the MIMO system, the optimization objective function involved in the method is defined as the main singular value of the sub-channel matrix corresponding to the antenna array. The objective function of antenna selection involved is not derived from the results of channel estimation, but by using the characteristic of the 60GHz channel having a strong line-of-sight component, and estimating the right boundary of the Gael disk of the channel matrix through...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an MIMO system and an application method thereof for adaptive antenna selection. The MIMO system comprises a transmitter, a receiver and a wireless channel; the process of the antenna selection which is realized in the MIMO system adopts an iterative feedback structure; a subset is selected quickly from a large amount of antenna sets by using the characteristic of 60 GHz channel without accurate channel estimation, so that a subchannel corresponding to an antenna subarray is optimal in the sense of a defined target function; and high speed data transmission is performed by using the selected optimal antenna subarray. The invention provides the rapid and efficient application method for the MIMO system along with low cost, and solves the technical problems of high complexity and low efficiency of the traditional antenna selection method in the large-scale the MIMO system. An experiment proves that: the adopted method can obtain good performance only through several iterations and low computational complexity; and the system can better support the application of the large-scale the antenna array.

Description

Technical field: [0001] The invention belongs to the communication field, and relates to a MIMO system and an application method thereof, in particular to a random optimization-based adaptive antenna selection method and a signal processing method thereof. Background technique: [0002] A multiple-input multiple-output (MIMO) system usually has multiple antennas at the transmitting end or the receiving end or both to form an antenna array. Using space multiplexing or transmit diversity, MIMO systems can gain channel capacity gains and improve system transmission performance. Therefore, the MIMO system (or multi-antenna system) becomes the preferred physical layer structure for future high-speed communication systems. It is not surprising that the 60GHz communication system, which is considered to be able to provide a transmission rate of up to several Gbps, uses a multi-antenna array as the front end of the transceiver. A proposal of the 802.15 working group dedicated to 6...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/06H04B7/08H04L1/06
Inventor 董可廖学文朱世华任品毅
Owner XI AN JIAOTONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products