A signal detection method and device applied to a multi-input multi-output system

A signal detection, multi-output technology, applied in the field of communication, can solve the problem of not being able to achieve bit error rate performance, unable to achieve optimal bit error rate performance, etc., and achieve the effect of avoiding bit error rate performance
CN104022985BActive Publication Date: 2017-09-29BEIJING UNIV OF POSTS & TELECOMM +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING UNIV OF POSTS & TELECOMM
Publication Date
2017-09-29

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Abstract

The present application discloses a signal detection method applied to a multiple-input multiple-output system, which is used to solve the problem in the prior art that LRA detection for signals cannot achieve optimal bit error rate performance. The method includes: selecting a complex integer matrix from a set of complex integer matrices according to parameter values ​​related to the reliability of data transmission; determining the estimated value of the transmitted data stream according to the received signal, the detection matrix and the selected complex integer matrix. The application also discloses a signal detection device applied to a multiple-input multiple-output system.
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Description

technical field

[0001] The present application relates to the technical field of communications, and in particular to a signal detection method and device applied to a multiple-input multiple-output system. Background technique

[0002] The multiple input multiple output (Multiple Input Multiple Output, MIMO) technology has become a commonly used technology in the fourth generation mobile communication because it can bring diversity gain and spatial multiplexing gain at the same time.

[0003] figure 1 A schematic diagram of MIMO technology is shown. The sender goes through N t root transmit antenna, the data stream will After being transmitted through the space channel, the N at the receiving end r (N t ≤N r ) root receiving antenna to receive.

[0004] On the receiving end, each receive antenna receives a data stream from each transmit antenna. If a received signal y is used to represent the signals received by all receiving antennas (the signals received by the r...

Claims

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