Providing Spectrum Information Service Using TV White Space via Distributed Detection System

Electromagnetic spectrum resources are a very important resource. With the rapid development of radio technology, electromagnetic spectrum resources have become scarce. Abuse of spectrum resources and interference with primary user often occur. Pre-sensing the electromagnetic environment and perform...

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Bibliographic Details
Published in:IEEE transactions on vehicular technology 2019-08, Vol.68 (8), p.7655-7667
Main Authors: Chen, Zhenjia, Zhang, Yonghui
Format: Article
Language:English
Subjects:
Ad hoc networks
distributed detection
Efficient markets
Electromagnetic spectrum
Embedded systems
Frequencies
Identification methods
Information services
IP networks
Multicast
phase extreme range estimation
Protocols
Radio signals
TV White Space (TVWS)
Wireless communication
Wireless sensor networks
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Summary:Electromagnetic spectrum resources are a very important resource. With the rapid development of radio technology, electromagnetic spectrum resources have become scarce. Abuse of spectrum resources and interference with primary user often occur. Pre-sensing the electromagnetic environment and performing dynamic spectrum access is the direction of future wireless technology development. This paper focuses on the electromagnetic spectrum information service platform. We design a spectrum detection node in combination with an embedded system. The distributed spectrum detection network is constructed by using the TV White Space as the communication frequency band of the backbone network. From the perspective of signal source, research on detection and identification methods based on radio signal characteristics improves the efficiency of electromagnetic spectrum detection. A phase extreme range estimation method based on radio frequency I/Q data is proposed to improve signal estimation accuracy in a low signal-noise-ratio environment. The interquartile range is proposed to distinguish noise and signal. The experiment results show that distributed electromagnetic spectrum information service platform based on signal characteristics can improve detection accuracy and increase system flexibility.
ISSN:0018-9545
1939-9359
DOI:10.1109/TVT.2019.2921383