Title:
LINK-BASED AUTONOMOUS CELL SCHEDULING DEVICE AND METHOD FOR INCREASING TRAFFIC THROUGHPUT IN TSCH PROTOCOL
Document Type and Number:
WIPO Patent Application WO/2022/102841
Kind Code:
A1
Abstract:
The present invention provides a link-based autonomous cell scheduling device and method for increasing traffic throughput in a TSCH protocol configured to adjust the number of cells allocated to each node by varying the length of a slot frame for each link on the basis of a routing tree form without additional communication overhead. The link-based autonomous cell scheduling device comprises: a routing information management unit for recording information on a preferred parent node and a child node of a node in a routing information table and managing same; a slot frame management unit for generating and modifying multiple slot frames with reference to routing information, packet queue information, and transmission/reception result information of the routing information table; a slot frame schedule determination unit for integrating multiple slot frames with reference to a link Unicast slot frame table, a Broadcast slot frame table, and an EB slot frame table to create one integrated slot frame corresponding to a global slot frame size, and recording the integrated slot frame in an integrated slot frame table; and a TSCH MAC layer drive unit for operating after checking an assigned cell of the integrated slot frame with reference to the integrated slot frame table in a TSCH MAC layer, wherein the link-based autonomous cell scheduling device calculates an ASFN after adjusting an ASN in a TSCH MAC timeslot operation procedure, adjusts the length of the link Unicast slot frame for all neighboring links, and calculates the cell.
Inventors:
CHUNG SANGHWA (KR)
LEE HEEJUN (KR)
LEE HEEJUN (KR)
Application Number:
PCT/KR2020/016684
Publication Date:
May 19, 2022
Filing Date:
November 24, 2020
Export Citation:
Assignee:
PUSAN NATIONAL UNIV INDUSTRYUNIV COOPERATION FOUNDATION (KR)
International Classes:
H04W72/12; H04W40/24; H04W72/04; H04W84/18
Foreign References:
| US20200137719A1 | 2020-04-30 | |||
| KR101870894B1 | 2018-06-26 |
Other References:
KIM SEOHYANG; KIM HYUNG-SIN; KIM CHONGKWON: "ALICE: Autonomous Link-based Cell Scheduling for TSCH", 2019 18TH ACM/IEEE INTERNATIONAL CONFERENCE ON INFORMATION PROCESSING IN SENSOR NETWORKS (IPSN), ACM, 15 April 2019 (2019-04-15), pages 121 - 132, XP033559606, DOI: 10.1145/3302506.3310394
TAHERI JAVAN NASTOOH; SABAEI MASOUD; HAKAMI VESAL: "IEEE 802.15.4.e TSCH-Based Scheduling for Throughput Optimization: A Combinatorial Multi-Armed Bandit Approach", IEEE SENSORS JOURNAL, IEEE, USA, vol. 20, no. 1, 1 January 2020 (2020-01-01), USA, pages 525 - 537, XP011764078, ISSN: 1530-437X, DOI: 10.1109/JSEN.2019.2941012
LEE YUN-SUNG, SANG-HWA CHUNG): "The IEEE 802.15.4e based Distributed Scheduling Mechanism for the Energy Efficiency of Industrial Wireless Sensor Networks) ", JOURNAL OF KIISE, KOREAN INSTITUTE OF INFORMATION SCIENTISTS AND ENGINEERS, KR, vol. 44, no. 2, 15 February 2017 (2017-02-15), KR , pages 213 - 222, XP055929080, ISSN: 2383-630X, DOI: 10.5626/JOK.2017.44.2.213
TAHERI JAVAN NASTOOH; SABAEI MASOUD; HAKAMI VESAL: "IEEE 802.15.4.e TSCH-Based Scheduling for Throughput Optimization: A Combinatorial Multi-Armed Bandit Approach", IEEE SENSORS JOURNAL, IEEE, USA, vol. 20, no. 1, 1 January 2020 (2020-01-01), USA, pages 525 - 537, XP011764078, ISSN: 1530-437X, DOI: 10.1109/JSEN.2019.2941012
LEE YUN-SUNG, SANG-HWA CHUNG): "The IEEE 802.15.4e based Distributed Scheduling Mechanism for the Energy Efficiency of Industrial Wireless Sensor Networks) ", JOURNAL OF KIISE, KOREAN INSTITUTE OF INFORMATION SCIENTISTS AND ENGINEERS, KR, vol. 44, no. 2, 15 February 2017 (2017-02-15), KR , pages 213 - 222, XP055929080, ISSN: 2383-630X, DOI: 10.5626/JOK.2017.44.2.213
Attorney, Agent or Firm:
OH, Wihwan (KR)
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