Co-channel Interference Monitoring based on Cognitive Radio Node Station

2018 5th International Conference on Electrical Engineering, Computer Science and Informatics (EECSI) Pub Date : 2018-10-01 DOI:10.1109/EECSI.2018.8752773

Arief Marwanto, M. U. Nuha, Jenny P Hapsary, Daniel Triswahyudi

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Abstract

Most of installation on wireless LAN on the building is not considering location and geographic space are which probable co-channel interference among near-far wi-fi stations. The use of the same channel which causes of receiver stations experiences of error transmission and delay among data transmission. To analyze this drawbacks, cognitive radio (CR) is adopted which able to monitoring co-channel interference on wi-fi stations. Node MCU Arduino is used to proposed cognitive radio terminal which able to analyzed and monitoring co-channel interference among wi-fi stations known as co-channel monitoring cognitive radio (CCMCR). One of the CR task is ability to sensing the whole spectrum channel that operated in certainty frequency. Node MCU is sensed the energy power of the wi-fi stations and converted by analog-to-digital converter which detected power level of the received signal strength indicator (RSSI). The proposed model is examined by indoor experiments which obtained 63.8% co-channel average and adjacent-channel is 36.1%. Thus the proposed CCMCR node station is able to monitor co-channel interference and adjacent-channel as well. Therefore, the results could be used as the basic analysis for the development and installation of wi-fi stations in the building.

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基于认知无线节点站的同信道干扰监测

在建筑物上安装无线局域网时，大多没有考虑到位置和地理空间，远近wi-fi站之间可能产生共信道干扰。同一信道的使用导致接收站在数据传输中经历错误传输和延迟。为了分析这一缺陷，采用认知无线电(CR)来监测wi-fi站的同信道干扰。利用Arduino单片机提出认知无线电终端，能够分析和监测wi-fi站之间的同信道干扰，称为同信道监测认知无线电(CCMCR)。CR任务之一是能够感知在确定频率下工作的全频谱信道。节点MCU检测wi-fi站的能量功率，并通过模数转换器进行转换，模数转换器检测接收信号强度指示器(RSSI)的功率电平。通过室内实验对该模型进行了验证，共信道平均值为63.8%，相邻信道平均值为36.1%。因此所提出的CCMCR节点站既能监测同信道干扰，也能监测邻接信道干扰。因此，研究结果可作为该建筑wi-fi站点开发和安装的基础分析。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2018 5th International Conference on Electrical Engineering, Computer Science and Informatics (EECSI)

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