Preprocessing-assisted signal detection method and device in multiple-input multiple-output system

A signal detection, multi-output technology, applied in the direction of error detection/prevention using signal quality detector, error prevention/detection through diversity reception, etc. problems such as the reach rate, to achieve the effect of avoiding the reach rate and taking into account the effectiveness
CN104022858BActive Publication Date: 2017-12-26BEIJING UNIV OF POSTS & TELECOMM
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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
2017-12-26

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Abstract

Disclosed is a preprocessing-aided signal detection method in a multiple input multiple output (MIMO) system, for solving the problem in the prior art of incapability of reaching an optimal achievable rate by employing LRA detection of signals, the method comprising: selecting a complex integer matrix from a complex integer matrix set according to parameter values relevant to the validity of data transmission; and according to a received signal, a detection matrix and the selected complex integer matrix, determining the estimation value of a transmitted data stream. Also disclosed is a preprocessing-aided signal detection device in the MIMO system.
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Description

technical field

[0001] The present application relates to the field of communication technologies, and in particular to a preprocessing-assisted signal detection method and device in 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 ...

Claims

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