| 한글제목(Korean Title) |
Secondary System Initialization Protocol Using FFT-based Correlation Matching for Cognitive Radio Ad-hoc Networks |
| 영문제목(English Title) |
Secondary System Initialization Protocol Using FFT-based Correlation Matching for Cognitive Radio Ad-hoc Networks |
| 저자(Author) |
Sang-Jo Yoo
Ju-Tae Jang
Myunghwan Seo
Hyung-Weon Cho
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| 원문수록처(Citation) |
VOL 11 NO. 01 PP. 0123 ~ 0145 (2017. 01) |
한글내용
(Korean Abstract) |
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영문내용
(English Abstract) |
Due to the increasing demand for spectrum resources, cognitive radio networks and dynamic spectrum access draw a lot of research into efficiently utilizing limited spectrum resources. To set up cluster-based CR ad-hoc common channels, conventional methods require a relatively long time to successfully exchange the initialization messages. In this paper, we propose a fast and reliable common channel initialization protocol for CR ad-hoc networks. In the proposed method, the cluster head sequentially broadcasts a system activation signal through its available channels with a predetermined correlation pattern. To detect the cluster head’s broadcasting channels and to join the cluster, each member node implements fast Fourier transform (FFT) and computes autocorrelation of an FFT bin sequence for each available channel of the member node. This is compared to the predetermined reference pattern. The join request and channel decision procedures are also presented in this paper. In a simulation study, the performance of the proposed method is evaluated.
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| 키워드(Keyword) |
cognitive radio network
common channel
CR ad-hoc
secondary system initialization
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| 파일첨부 |
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