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Detection method for mu-mimo one-bit adc system

A detection method and bit technology, applied in transmission systems, radio transmission systems, transmission monitoring, etc., can solve the problems of high complexity of soft detection methods and unfavorable engineering implementation, and achieve the effect of facilitating engineering implementation and reducing complexity

Active Publication Date: 2022-06-03
CHONGQING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0004] In order to solve the problem that the soft detection method of the MU-MIMO system of the existing one-bit ADC has high complexity and is not conducive to engineering implementation, the present invention proposes a detection method for the MU-MIMO one-bit ADC system, including the following steps:

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  • Detection method for mu-mimo one-bit adc system
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  • Detection method for mu-mimo one-bit adc system

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Embodiment Construction

[0046] Below in conjunction with the accompanying drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely

[0055] Step 11: Sort the column vectors of the channel matrix.

[0057]

[0063] Among them, ceil(.) represents the round-up operation, and mod(K, o) represents the remainder of K divided by o.

[0064] Step 12: Calculate the signal-to-interference-noise ratio.

[0066] According to the unquantized signal model y=Hx+n∈R received by the base station

[0067]

[0071]

[0074]

[0076] Step 13: Calculate the soft information of the (m-1)×o+1th user to the m×o2th user after sorting.

[0082]

[0085] Calculate the transition probability of the ith sub-channel in the N parallel binary discrete memoryless channels and express as:

[0086]

[0088]

[0091]

[0093]

[0095]

[0098]

[0102]

[0104] Calculate the soft information of each bit information of the current ...

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Abstract

The invention belongs to the technical field of mobile communication, and particularly relates to a detection method for a MU-MIMO one-bit ADC system, including sorting users according to the two-norm of the channel matrix column vector of MU-MIMO; As useful signals and undetected signals as interference, calculate the SINR; according to the improved soft input detection algorithm, calculate the soft information of each bit information of the current detection user in the N parallel B-DMC framework, and each detection only detects o user information; if all user information has been detected, then the detection process ends, otherwise the next user continues to be detected; the present invention reduces the complexity of signal detection and is beneficial to project implementation.

Description

Detection method for MU‑MIMO one-bit ADC system technical field The invention belongs to the technical field of mobile communication, particularly a kind of for multi-user-multi-input multiple-output (Multi- User Multiple-Input Multiple-Output, MU-MIMO) detection method for one-bit ADC system. Background technique [0002] Massive MIMO, as one of the key technologies of 5G, has received extensive attention in the industry. However, massive MIMO systems Significantly increases hardware cost and power consumption of RF circuits. Of all the components in the RF chain, the ADC is the most power-hungry component. Power consumption increases exponentially with the number of quantization bits. At the same time, millimeter wave technology, which is the key technology of 5G, makes existing parties This solution becomes difficult to implement because a high-precision ADC with a higher sampling frequency is required. In order to overcome the power consumption and system achie...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B17/336H04B7/0413
CPCH04B17/336H04B7/0413Y02D30/70
Inventor 王华华余永坤李小文陈发堂王丹梁泽乾
Owner CHONGQING UNIV OF POSTS & TELECOMM