Supercharge Your Innovation With Domain-Expert AI Agents!

1-bit quantized A/D mixed millimeter wave channel estimation method

A 1-bit, channel estimation technology, applied in channel estimation, diversity/multi-antenna systems, advanced technology, etc., can solve problems such as data transmission performance distortion, and achieve the effect of reducing hardware costs

Active Publication Date: 2022-02-25
HANGZHOU DIANZI UNIV
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Low-precision A / D has certain limitations: it will cause a certain degree of distortion to data transmission performance

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
  • 1-bit quantized A/D mixed millimeter wave channel estimation method
  • 1-bit quantized A/D mixed millimeter wave channel estimation method
  • 1-bit quantized A/D mixed millimeter wave channel estimation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0068] The following example simulates the mmWave communication scenario in which each radio frequency chain can be connected to all antennas of the base station. The specific parameters are set as follows: number of antennas M = 64, number of radio frequency connections N RF =1, the number of users N=1, and the number of cycles is 5000.

[0069] Such as Figure 5 Shown is a fixed reward function threshold (ξ = 10), different quantization thresholds (τ = 0.35 / 0.4 / 0.45 / 0.5 / 0.55 / 0.6 / 0.65 / 0.7) under the change of the average number of iterations with the signal-to-noise ratio , the range of signal-to-noise ratio is -20 to 10dB. It can be seen from the figure that as the quantization threshold τ and SNR increase, the average number of iterations decreases gradually and tends to 1. Therefore, a larger quantization threshold should be used as much as possible to reduce the average number of iterations. combine Figure 6 , when the quantization threshold value τ=0.45, the error p...

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 a 1-bit quantized A / D mixed millimeter wave channel estimation method. The method comprises the following steps: step 1, an application scene and a channel model; step 2, implementation of beam search and acquisition of beam detection probability under the 1-bit quantization A / D condition; step 3, confidence interval estimation and beam judgment reliability; and 4, obtaining of the reward function threshold design of an optimal beam. According to the method, in the millimeter wave beam searching process, 1-bit A / D is used for quantification, the reliability of the optimal beam obtained under the 1-bit quantification condition is improved by designing n-fold Bernoulli distribution, the confidence interval and the reward function, and under the condition that the accuracy is guaranteed, the observation frequency is reduced so as to improve the estimation efficiency of the system. The algorithm does not depend on a high-precision quantification A / D device, and hardware cost of system design and corresponding system energy consumption are reduced. In addition, the feasibility of channel estimation of the algorithm under the condition that hardware is limited is verified through simulation.

Description

technical field [0001] The invention belongs to the technical field of millimeter wave communication, and proposes a method for estimating a 1-bit quantized A / D mixed millimeter wave channel. Background technique [0002] Millimeter wave communication is one of the most promising technologies for the fifth generation (5G) wireless communication system. While it provides greater bandwidth, spectrum resources and data rates, it also brings a huge challenge: extremely high spectrum lead to large path loss. In order to combat path loss, it is usually necessary to use a large-scale antenna array at the base station to improve the efficiency and performance of data transmission. Due to the short wavelength of the millimeter wave signal, the smaller antenna size can be compactly integrated into a large-scale antenna array, so as to better complete highly directional beamforming and channel estimation techniques. [0003] There have been extensive studies on beam search and channe...

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
IPC IPC(8): H04B7/0413H04B7/06H04B7/08H04L25/02
CPCH04B7/0413H04B7/0695H04B7/088H04L25/0202H04L25/0204Y02D30/70
Inventor 王文齐赵楼刘春山孙佳蓓
Owner HANGZHOU DIANZI UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com