Visible light communication multi-cell interference management method
A technology for visible light communication and interference management, which is applied in the field of visible light communication multi-cell interference management, and can solve problems such as the proposed multi-cell interference management method for visible light communication and less interference channels.
Active Publication Date: 2018-12-21
ZHONGTIAN BROADBAND TECH +1
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Problems solved by technology
[0009] At present, there are few researches on multi-cell interference channels for visible light communication, and there is no effective multi-cell interference management method for visible light communication.
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[0138] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0139] The present invention proposes two new frameworks for the visible light interference management framework, using information theory, signal processing and convex optimization methods, and proposes a closed expression and tighter channel capacity calculation method that meets the constraint requirements of visible light communication, which can be simple Quickly complete the design and calculation of visible light interference management and beamforming.
[0140] figure 2 It shows the basic flow of centralized visible light communication multi-cell interference management using the technical solution of the present invention. The visible light interference channel system model is as follows: figure 1 As shown, the specific steps are as follows:
[0141] Step 1: Set system-related parameters and input signals according to design requirements.
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The invention discloses a visible light communication multi-cell interference management method, comprises a concentrated visible light communication multi-cell interference management method and a distributed visible light communication multi-cell interference management method, belongs to the visible light communication field and relates to interference channel MISO multi-cell visible light interference management frameworks. According to the method, an information theory, signal processing and convex optimization method is utilized, the concentrated and distributed interference management frameworks are proposed, interference among cells can be effectively reduced through the proposed interference management frameworks, a user target rate can be guaranteed, emission power can be further reduced, and energy efficiency is further improved; the pertinent methods are proposed for different scenes, method calculation precision is high, a solution speed is fast, information exchange in a system can be effectively reduced through the distributed interference management method, a network load is reduced, energy loss of the whole system can be reduced through the characteristics, and system energy efficiency can be further improved.
Description
technical field [0001] The invention belongs to the field of visible light communication, and in particular relates to a multi-cell interference management method for visible light communication. Background technique [0002] The study of visible light communication technology has important scientific significance and application prospects. The goal of visible light communication is to perform high-speed transmission on the basis of LED lighting systems, and the relevant requirements for indoor lighting must first be guaranteed. Therefore, unlike the radio frequency wireless communication system established under the constraint of limited average electric power, visible light communication needs to meet the constraints of limited peak power and limited average optical power in order to ensure the safety and comfort of human eyes and the requirements of lighting brightness. At the same time, in order to meet the requirements of LED Unlike the performance requirements of opti...
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IPC IPC(8): H04B10/116H04B10/114
CPCH04B10/1143H04B10/116
Inventor 马帅杨瑞鑫李世银贺阳代佳辉
Owner ZHONGTIAN BROADBAND TECH