A high-speed power line carrier adaptive modulation method and system

CN115865273BActive Publication Date: 2026-08-28STATE GRID JIANGSU ELECTRIC POWER CO LTD MARKETING SERVICE CENT
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202211481513.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-11-24
Publication Date
2026-08-28
Estimated Expiration
2042-11-24

AI Technical Summary

Technical Problem

这将很复杂并且耗时

Benefits of technology

[0037]1、本发明使用基于分组EESM方案的自适应调制算法，经过对不同编码和调制方式的多次仿真，得到了最佳的调制切换信噪比阈值，提高了频谱效率；

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN115865273B_ABST
    Figure CN115865273B_ABST
Patent Text Reader

Abstract

A high-speed power line carrier adaptive modulation method and system, a mathematical model of multipath fading channel is established, and the modulation and coding method is analyzed. The OFDM transmission system is constructed, and the relationship between the beam and the bit error rate of OFDM is analyzed; The effective signal-to-noise ratio value of exponential effective signal-to-noise ratio mapping (EESM) is calculated, and different modulation and coding methods are determined according to different signal-to-noise ratio value ranges. The use of the grouping EESM scheme improves the throughput of the system, and the use of the neural network for channel EESM estimation has a processing time lower than that of the channel EESM calculation, and has better adaptive ability.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Adaptive bit power loading method and device

    CN102299885A

  • A channel quality determination method under a high-dynamic scene

    CN109842577A