A decision threshold optimization method and system for a communication system
A judgment threshold and communication system technology, applied in the field of communication, can solve problems such as rapid adjustment of receivers, occupation of communication channel resources, unfavorable implementation of hardware circuits, etc., and achieve strong adaptability
Active Publication Date: 2021-09-03
BEIJING UNIV OF POSTS & TELECOMM
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However, in the existing solutions, the implementation of the hardware circuit is not conducive to the rapid adjustment of the receiver, and adding a preamble sequence or a training sequence will occupy a certain amount of communication channel resources
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[0040] In order to make the objects, technical solutions, and advantages of the present invention more clearly, the technical solutions in the embodiments of the present invention will be described in contemplation in the embodiments of the present invention, and will be described, and the embodiments described in the embodiments of the present invention will be described. It is a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, those of ordinary skill in the art will belong to the scope of the present invention without all other embodiments obtained without creative labor.
[0041] Clustering algorithm is a statistical analysis of the data set of classification methods, the method according to the similarity between clustering data partitioning, and the quality judgment code division basis to measure the effect of each cluster analysis, or further may be globally local optimal. k-Means algorithm embod...
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An embodiment of the present invention provides a decision threshold optimization method and system for a communication system, the method comprising: performing cluster analysis on the level amplitude of the input signal through the k-Means clustering algorithm to obtain the first cluster center array and the first clustering result array; sort the clustering centers of the first clustering center array in ascending order to obtain a second clustering center array, and sort the first clustering center according to the second clustering center array The class result array is updated to obtain a second cluster result array; according to the second cluster center array and the second cluster result array, the arithmetic mean value between adjacent cluster centers is obtained to obtain a decision threshold . The embodiment of the present invention solves the problem of optimization of the decision threshold by the communication receiver by introducing the k-Means clustering algorithm, so that the setting of the decision threshold is more flexible and accurate, and can effectively deal with communication problems of time-varying channels, and has the advantages of Greater adaptability.
Description
Technical field [0001] The present invention relates to communications technologies, and in particular relates to a communication system for a decision threshold limit optimization method and system. Background technique [0002] In the process of digital communications, the amplitude level of the input signal to obtain a receiver having a time-varying, in order to reduce the error rate of the communication system, it is necessary to optimize the decision threshold of the receiver, in order to achieve efficient and correct recognition detecting multilevel signal the goal of. [0003] In the conventional embodiment, a class of the receiver decision threshold is not adjustable, and the other receiver may be adaptively adjusted decision thresholds. For conventional adaptive thresholding techniques, the receiver based on changes in the strength of the received signal, the door limits make corresponding adjustments, there are three prior art solutions to adjust the door limit: 1, is a...
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IPC IPC(8): H04L25/03
CPCH04L25/03312H04L25/03318
Inventor 张明伦林兴龙
Owner BEIJING UNIV OF POSTS & TELECOMM