TIIS (한국인터넷정보학회)
Current Result Document :
| 한글제목(Korean Title) |
Initial Rendezvous Protocol using Multicarrier Operation for Cognitive Radio Ad-hoc Networks |
| 영문제목(English Title) |
Initial Rendezvous Protocol using Multicarrier Operation for Cognitive Radio Ad-hoc Networks |
| 저자(Author) |
Ik-Soo Choi
Sang-Jo Yoo
Myunghwan Seo
Chul-Hee Han
Bongsoo Roh
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| 원문수록처(Citation) |
VOL 12 NO. 06 PP. 2513 ~ 2533 (2018. 06) |
한글내용
(Korean Abstract) |
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영문내용
(English Abstract) |
In cognitive radio technology, the overall efficiency of communications systems can be improved without allocating additional bands by allowing a secondary system to utilize the licensed band when the primary system, which has the right to use the band, does not use it. In this paper, we propose a fast and reliable common channel initialization protocol without any exchange of initialization messages between the cluster head and the member nodes in cognitive ad-hoc networks. In the proposed method, the cluster and member nodes perform channel-based spectrum sensing. After sensing, the cluster head transmits a system activation signal through its available channels with a predetermined angle difference pattern. To detect the cluster head’s transmission channels and to join the cluster, each member node implements fast Fourier transform (FFT) and computes autocorrelation for the angle difference sequence of the received signal patterns. This is compared to the predetermined reference angle difference pattern. The join-request and channel-decision procedures are presented in this paper. Performance evaluation of the proposed method is presented in the simulation results.
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| 키워드(Keyword) |
Cognitive radio networks
common channel
average angle difference pattern
system activation signal
boundary symbol synchronization
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| 파일첨부 |
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