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Minimum mean-square error filtering algorithm in MIMO communication system

A technology of minimum mean square error and filtering algorithm, which is applied in baseband system components, preventing/detecting errors through diversity reception, etc., which can solve the problems of complicated computation, unfavorable hardware implementation, and uncertain time overhead.

Inactive Publication Date: 2006-03-08
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The characteristics of these methods are without exception that the calculation is complicated, and the multipliers and adders used are too many. There are many uncertain factors, so the time overhead is uncertain, and it is also not conducive to hardware implementation

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  • Minimum mean-square error filtering algorithm in MIMO communication system
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  • Minimum mean-square error filtering algorithm in MIMO communication system

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Abstract

Belonging to technical area of electrommunication, the invention is especially related to MIMO detection algorithm in 4G. The algorithm includes procedures: (1) based on system channel information H, Rho, calculating weight vector w of MMSE filter; (2) MMSE filtering the received signal obtains estimated value s' of symbol s in transmission antenna. The procedure (1) includes following steps: (1) calculate matrix A; (2) calculate inverse matrix of A; (3) calculate weight vector w of MMSE filter. Using formula disclosed in the invention calculates inverse matrix of A. essential of the invention is that re-numbering method of variable circulation is applied to MIMO detection algorithm; but, usually considering it is not possible to apply the algorithm to MIMO detection algorithm based on MMSE. The invention simplifies procedure of MIMO detection algorithm so as to lowers complexity and difficulties of hardware.

Description

Technical field: A minimum mean square error filtering algorithm in a MIMO communication system belongs to the technical field of electronic communication, and particularly relates to MIMO detection design and engineering realization technology in 4G. Background technique: The new generation of mobile communication (beyond 3G / 4G) will be able to provide a data transmission rate of up to 100Mbit / s, or even higher, and support services ranging from voice to multimedia services, including real-time streaming media services. The data transmission rate can be dynamically adjusted according to the different rates required by these services. Another feature of the new generation of mobile communications is low cost. In this way, realizing high speed and large capacity on limited spectrum resources requires technologies with extremely high spectrum efficiency. MIMO (Multiple-Input Multiple-Output) technology fully develops space resources, uses multiple antennas (as shown in Figu...

Claims

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Application Information

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IPC IPC(8): H04L25/02H04L1/06
Inventor 刘皓王灵光王军李少谦
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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