Interference management method and device in optical communication system

By combining adaptive beamforming and interference vector orthogonalization with dynamic time slot scheduling, the problem of co-channel interference in optical communication systems is solved, achieving efficient interference management and stable transmission performance, which is suitable for high-density optical communication networks such as LiFi.

CN122268475APending Publication Date: 2026-06-23SHAOXING AIFENGHUAN COMM EQUIP CO LTD
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Patent Information

Application Number
CN202610130024.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-30
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

In optical communication systems with multiple transmitters and receivers, existing interference management techniques cannot effectively suppress co-channel interference, leading to difficulties in signal demodulation, reduced transmission rates, and increased bit error rates. Furthermore, existing methods are inflexible in resource allocation when channel conditions change, affecting transmission efficiency.

Method used

By employing adaptive beamforming optimization, multi-dimensional interference vector orthogonalization, and dynamic time slot scheduling strategies, a closed-loop optimization system is constructed using real-time channel state information to dynamically adjust beam parameters and interference signal processing, thereby achieving active interference suppression and improved transmission efficiency.

Benefits of technology

It achieves low-interference and high-stability transmission performance in multi-user dynamic scenarios, improves interference suppression accuracy and transmission efficiency, and is suitable for high-density optical communication networks.

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Abstract

The invention belongs to an optical communication system, and discloses an interference management method and device in an optical communication system, and the method comprises the following steps: S1, collecting the channel state information between each transmitter and each receiver in the optical communication system in real time, and constructing a data model based on the channel state information; s2, based on the data model, dynamically adjusting beam parameters of the LED array through an adaptive beam forming strategy; s3, interference signal parameters in the channel state information are utilized, and structured alignment processing is carried out on interference signals of all transmitters through an interference vector orthogonalization algorithm; s4, setting an interference suppression judgment standard, judging whether the current interference level meets the requirement or not based on the judgment standard, and if the current interference level does not meet the requirement, starting a dynamic time slot scheduling strategy; and S5, updating the data model of the channel state information according to a preset period, repeating the steps S2-S4, and continuously adjusting beam parameters, interference orthogonalization parameters and time slot allocation parameters through an iterative optimization algorithm to realize dynamic adaptive interference management.
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