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논문 기본 정보

자료유형
학술저널
저자정보
Jaeyoung Kim (Pusan National University) Sanghwa Chung (Pusan National University) Hyungteak Shin (Pusan National University)
저널정보
Korean Institute of Information Scientists and Engineers Journal of Computing Science and Engineering Journal of Computing Science and Engineering Vol.15 No.3
발행연도
2021.9
수록면
97 - 106 (10page)
DOI
10.5626/JCSE.2021.15.3.97

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초록· 키워드

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Time slotted channel hopping (TSCH) is one of the techniques defined in the IEEE802.15.4e standard. TSCH operates based on a time-division scheme and uses 16 separate channels for each communication, ensuring high reliability. Since the entire network operates synchronously, the network participation process is indispensable. However, due to the channel change technique of TSCH, the network participation time of a new node that wants to participate in the network becomes longer. In the previous research, channels for beaconing were chosen randomly to reduce network formation time. However, this approach is effective in networks with a smaller number of nodes, e.g., congestion occurs due to collisions of beacon messages in networks with approximately more than 20, which increases the network participation time. In addition, since channels are selected stochastically, beacons can’t be broadcast evenly throughout the network. To solve this problem, this paper proposes a collision-minimizing scheduling scheme. The strategy allocates a separate timeslot for each node, eliminating the possibility of beacon message collisions. In this experiment, the average network join time decreased by 15%. The technique applied to this technique can reduce the network formation time without network congestion in a dense industrial environment.

목차

Abstract
Ⅰ. INTRODUCTION
Ⅱ. RELATED WORK
Ⅲ. COLLISION-MINIMIZING BEACON SCHEDULING
Ⅳ. EXPERIMENTS
Ⅴ. CONCLUSION
REFERENCES

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