{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,25]],"date-time":"2025-10-25T14:22:24Z","timestamp":1761402144218},"reference-count":22,"publisher":"Oxford University Press (OUP)","issue":"8","license":[{"start":{"date-parts":[[2021,5,3]],"date-time":"2021-05-03T00:00:00Z","timestamp":1620000000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"}],"funder":[{"name":"Ministry Of Science and Technology","award":["108-2221-E-006-056-MY3","108-2221-E-240-002"],"award-info":[{"award-number":["108-2221-E-006-056-MY3","108-2221-E-240-002"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2022,8,11]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>IEEE 802.11ah is a new protocol designed for Internet of Things (IoT). IEEE 802.11ah uses a hierarchical ID assignment schema and designs the corresponding channel access method such that stations can access channel alternatively through the four-level\u2019s hierarchical channel access structure. Nevertheless, collisions still cannot be effectively avoided in a dense IOT networking environment using the legacy IEEE 802.11ah. The work proposed the registration-based situation-aware access extension (RSAE) control scheme to avoid collisions, decrease backoff\u2019s waiting time and improve slot utilization through the following two ways: (i) in contrast to the traditional CSMA\/CA protocol that generates the backoff time for the next channel access after the collision happened, registering the backoff time to AP for scheduling the next channel access before the collision happens; (ii) extending the channel accessing\u2019s privilege of those stations that did not complete the data transmission\/receiving in the current slot to the available time of the next slot. Comparing with the legacy IEEE 802.11ah, the performance evaluation of the proposed RSAE scheme shown that it still can have a better throughput and a lower collision rate when there is a bigger number of stations in a slot.<\/jats:p>","DOI":"10.1093\/comjnl\/bxab036","type":"journal-article","created":{"date-parts":[[2021,3,18]],"date-time":"2021-03-18T20:11:12Z","timestamp":1616098272000},"page":"1977-1997","source":"Crossref","is-referenced-by-count":6,"title":["The Collision Avoidance and Situation-Aware Media Access Scheme Using the Registered-Backoff-Time Method for the IEEE 802.11ah-Based IoT Wireless Networks"],"prefix":"10.1093","volume":"65","author":[{"given":"Rung-Shiang","family":"Cheng","sequence":"first","affiliation":[{"name":"Department of Information Technology , , Taichung 70101, Taiwan, R.O.C"},{"name":"Overseas Chinese University , , Taichung 70101, Taiwan, R.O.C"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yin-Ming","family":"Li","sequence":"additional","affiliation":[{"name":"Department of Computer Science and Information Engineering , 40700, Tainan, Taiwan, R.O.C"},{"name":"National Cheng Kung University , 40700, Tainan, Taiwan, R.O.C"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chung-Ming","family":"Huang","sequence":"additional","affiliation":[{"name":"Department of Computer Science and Information Engineering , 40700, Tainan, Taiwan, R.O.C"},{"name":"National Cheng Kung University , 40700, Tainan, Taiwan, R.O.C"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","published-online":{"date-parts":[[2021,5,3]]},"reference":[{"key":"2022081612372424000_ref1","first-page":"1","article-title":"5G internet of things: A survey","volume":"10","author":"Li","year":"2018","journal-title":"J. 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