{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,19]],"date-time":"2026-07-19T02:58:17Z","timestamp":1784429897310,"version":"3.55.0"},"reference-count":35,"publisher":"MDPI AG","issue":"16","license":[{"start":{"date-parts":[[2022,8,18]],"date-time":"2022-08-18T00:00:00Z","timestamp":1660780800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100003725","name":"Ministry of Education","doi-asserted-by":"publisher","award":["NRF-2021R1A6A1A03039493"],"award-info":[{"award-number":["NRF-2021R1A6A1A03039493"]}],"id":[{"id":"10.13039\/501100003725","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003725","name":"Ministry of Education","doi-asserted-by":"publisher","award":["NRF-2022R1A2C1004401"],"award-info":[{"award-number":["NRF-2022R1A2C1004401"]}],"id":[{"id":"10.13039\/501100003725","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003725","name":"Ministry of Education","doi-asserted-by":"publisher","award":["PID2019-106808RA-I00"],"award-info":[{"award-number":["PID2019-106808RA-I00"]}],"id":[{"id":"10.13039\/501100003725","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003725","name":"Korea government (MSIT)","doi-asserted-by":"publisher","award":["NRF-2021R1A6A1A03039493"],"award-info":[{"award-number":["NRF-2021R1A6A1A03039493"]}],"id":[{"id":"10.13039\/501100003725","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003725","name":"Korea government (MSIT)","doi-asserted-by":"publisher","award":["NRF-2022R1A2C1004401"],"award-info":[{"award-number":["NRF-2022R1A2C1004401"]}],"id":[{"id":"10.13039\/501100003725","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003725","name":"Korea government (MSIT)","doi-asserted-by":"publisher","award":["PID2019-106808RA-I00"],"award-info":[{"award-number":["PID2019-106808RA-I00"]}],"id":[{"id":"10.13039\/501100003725","id-type":"DOI","asserted-by":"publisher"}]},{"name":"SpanishMCIN\/AEI\/10.13039\/501100011033","award":["NRF-2021R1A6A1A03039493"],"award-info":[{"award-number":["NRF-2021R1A6A1A03039493"]}]},{"name":"SpanishMCIN\/AEI\/10.13039\/501100011033","award":["NRF-2022R1A2C1004401"],"award-info":[{"award-number":["NRF-2022R1A2C1004401"]}]},{"name":"SpanishMCIN\/AEI\/10.13039\/501100011033","award":["PID2019-106808RA-I00"],"award-info":[{"award-number":["PID2019-106808RA-I00"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>The healthcare Internet of Things (H-IoT) is an interconnection of devices capable of sensing and transmitting information that conveys the status of an individual\u2019s health. The continuous monitoring of an individual\u2019s health for disease diagnosis and early detection is an important application of H-IoT. Ambient assisted living (AAL) entails monitoring a patient\u2019s health to ensure their well-being. However, ensuring a limit on transmission delays is an essential requirement of such monitoring systems. The uplink (UL) transmission during the orthogonal frequency division multiple access (OFDMA) in the wireless local area networks (WLANs) can incur a delay which may not be acceptable for delay-sensitive applications such as H-IoT due to their random nature. Therefore, we propose a UL OFDMA scheduler for the next Wireless Fidelity (Wi-Fi) standard, the IEEE 802.11be, that is compliant with the latency requirements for healthcare applications. The scheduler allocates the channel resources for UL transmission taking into consideration the traffic class or access category. The results demonstrate that the proposed scheduler can achieve the required latency for H-IoT applications. Additionally, the performance in terms of fairness and throughput is also superior to state-of-the-art schedulers.<\/jats:p>","DOI":"10.3390\/s22166209","type":"journal-article","created":{"date-parts":[[2022,8,18]],"date-time":"2022-08-18T23:28:41Z","timestamp":1660865321000},"page":"6209","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":21,"title":["Preparing Wi-Fi 7 for Healthcare Internet-of-Things"],"prefix":"10.3390","volume":"22","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5708-1532","authenticated-orcid":false,"given":"Yazdan Ahmad","family":"Qadri","sequence":"first","affiliation":[{"name":"Department of Information and Communication Engineering, Yeungnam University, Gyeongsan-si 38541, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"family":"Zulqarnain","sequence":"additional","affiliation":[{"name":"Department of Information and Communication Engineering, Yeungnam University, Gyeongsan-si 38541, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2133-5286","authenticated-orcid":false,"given":"Ali","family":"Nauman","sequence":"additional","affiliation":[{"name":"Department of Information and Communication Engineering, Yeungnam University, Gyeongsan-si 38541, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Arslan","family":"Musaddiq","sequence":"additional","affiliation":[{"name":"Department of Computer Science and Media Technology, Linnaeus University, 391 82 Kalmar, Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6005-9608","authenticated-orcid":false,"given":"Eduard","family":"Garcia-Villegas","sequence":"additional","affiliation":[{"name":"Department of Network Engineering, Universitat Polit\u2019ecnica de Catalunya (UPC), 08034 Barcelona, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8454-6980","authenticated-orcid":false,"given":"Sung Won","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Information and Communication Engineering, Yeungnam University, Gyeongsan-si 38541, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,8,18]]},"reference":[{"key":"ref_1","unstructured":"(2022, July 02). Ageing and Health. Available online: https:\/\/www.who.int\/news-room\/fact-sheets\/detail\/ageing-and-health."},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Hasenauer, R., Belviso, C., and Ehrenmueller, I. (2019, January 24\u201326). New Efficiency: Introducing Social Assistive Robots in Social Eldercare Organizations. Proceedings of the 2019 IEEE International Symposium on Innovation and Entrepreneurship (TEMS-ISIE), Hangzhou, China.","DOI":"10.1109\/TEMS-ISIE46312.2019.9074296"},{"key":"ref_3","doi-asserted-by":"crossref","unstructured":"Marques, G., Pitarma, R., Garcia, N.M., and Pombo, N. (2019). Internet of Things Architectures, Technologies, Applications, Challenges, and Future Directions for Enhanced Living Environments and Healthcare Systems: A Review. Electronics, 8.","DOI":"10.3390\/electronics8101081"},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"3909","DOI":"10.3934\/mbe.2022180","article-title":"A novel compact broadband and radiation efficient antenna design for medical IoT healthcare system","volume":"19","author":"Dayo","year":"2022","journal-title":"Math. Biosci. Eng."},{"key":"ref_5","doi-asserted-by":"crossref","unstructured":"Ranieri, C.M., MacLeod, S., Dragone, M., Vargas, P.A., and Romero, R.A.F. (2021). Activity Recognition for Ambient Assisted Living with Videos, Inertial Units and Ambient Sensors. Sensors, 21.","DOI":"10.3390\/s21030768"},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"14070","DOI":"10.3390\/s140814070","article-title":"A Cloud-Based Internet of Things Platform for Ambient Assisted Living","volume":"14","author":"Cubo","year":"2014","journal-title":"Sensors"},{"key":"ref_7","doi-asserted-by":"crossref","unstructured":"Sarabia-J\u00e1come, D., Usach, R., Palau, C.E., and Esteve, M. (2020). Highly-efficient fog-based deep learning AAL fall detection system. Internet Things, 11.","DOI":"10.1016\/j.iot.2020.100185"},{"key":"ref_8","doi-asserted-by":"crossref","unstructured":"Hajar, M.S., Al-Kadri, M.O., and Kalutarage, H.K. (2021). A survey on wireless body area networks: Architecture, security challenges and research opportunities. Comput. Secur., 104.","DOI":"10.1016\/j.cose.2021.102211"},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"678","DOI":"10.1109\/ACCESS.2015.2437951","article-title":"The Internet of Things for Health Care: A Comprehensive Survey","volume":"3","author":"Islam","year":"2015","journal-title":"IEEE Access"},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"1121","DOI":"10.1109\/COMST.2020.2973314","article-title":"The Future of Healthcare Internet of Things: A Survey of Emerging Technologies","volume":"22","author":"Qadri","year":"2020","journal-title":"IEEE Commun. Surv. Tutor."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"100","DOI":"10.1109\/MWC.001.2000332","article-title":"Will OFDMA Improve the Performance of 802.11 WiFi Networks?","volume":"28","author":"Avallone","year":"2021","journal-title":"IEEE Wirel. Commun."},{"key":"ref_12","unstructured":"(2022, July 13). PAR Details. Available online: https:\/\/development.standards.ieee.org\/myproject-web\/public\/view.html#pardetail\/6886."},{"key":"ref_13","doi-asserted-by":"crossref","unstructured":"Bankov, D., Khorov, E., Lyakhov, A., and Sandal, M. (2019). Enabling real-time applications in Wi-Fi networks. Int. J. Distrib. Sens. Netw., 15.","DOI":"10.1177\/1550147719845312"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"90","DOI":"10.1109\/MCOM.007.2100271","article-title":"Toward Enabling High-Five Over WiFi: A Tactile Internet Paradigm","volume":"59","author":"Gokhale","year":"2021","journal-title":"IEEE Commun. Mag."},{"key":"ref_15","unstructured":"(2021). IEEE Standard for Information Technology\u2013Telecommunications and Information Exchange between Systems Local and Metropolitan Area Networks\u2013Specific Requirements Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications Amendment 1: Enhancements for High-Efficiency WLAN (Standard No. IEEE Std 802.11ax-2021)."},{"key":"ref_16","unstructured":"Cavalcanti, D., and Venkatesan, G. (2022, July 13). 802.1 TSN over 802.11 with Updates from Developments in 802.11be. Available online: https:\/\/www.ieee802.org\/1\/files\/public\/docs2020\/new-Cavalcanti-802-1TSN-over-802-11-1120-v02.pdf."},{"key":"ref_17","doi-asserted-by":"crossref","unstructured":"Shukla, S., Hassan, M.F., Khan, M.K., Jung, L.T., and Awang, A. (2019). An analytical model to minimize the latency in healthcare internet-of-things in fog computing environment. PLOS ONE, 14.","DOI":"10.1371\/journal.pone.0224934"},{"key":"ref_18","doi-asserted-by":"crossref","unstructured":"Qureshi, H.N., Manalastas, M., Ijaz, A., Imran, A., Liu, Y., and Al Kalaa, M.O. (2022). Communication Requirements in 5G-Enabled Healthcare Applications: Review and Considerations. Healthcare, 10.","DOI":"10.3390\/healthcare10020293"},{"key":"ref_19","doi-asserted-by":"crossref","unstructured":"Rodrigues, V.F., Righi, R.d.R., da Costa, C.A., and Antunes, R.S. (2022). Smart Hospitals and IoT Sensors: Why Is QoS Essential Here?. J. Sens. Actuator Netw., 11.","DOI":"10.3390\/jsan11030033"},{"key":"ref_20","first-page":"1572","article-title":"Study QoS-aware Fog Computing for Disease Diagnosis and Prognosis","volume":"27","author":"Peng","year":"2022","journal-title":"Mob. Netw. Appl."},{"key":"ref_21","doi-asserted-by":"crossref","unstructured":"Zaman, U., Mehmood, F., Iqbal, N., Kim, J., and Ibrahim, M. (2022). Towards Secure and Intelligent Internet of Health Things: A Survey of Enabling Technologies and Applications. Electronics, 11.","DOI":"10.3390\/electronics11121893"},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"2136","DOI":"10.1109\/COMST.2020.3012715","article-title":"IEEE 802.11be Wi-Fi 7: New challenges and opportunities","volume":"22","author":"Deng","year":"2020","journal-title":"IEEE Commun. Surv. Tutor."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"113","DOI":"10.1109\/MCOM.001.1900338","article-title":"IEEE 802.11 be extremely high throughput: The next generation of Wi-Fi technology beyond 802.11 ax","volume":"57","author":"Kasslin","year":"2019","journal-title":"IEEE Commun. Mag."},{"key":"ref_24","unstructured":"Park, E., Lim, D., Kim, J., and Choi, J. (2022, August 15). Tone Plan Discussion. Available online: https:\/\/mentor.ieee.org\/802.11\/dcn\/19\/11-19-1066-03-00be-tone-plan-discussion.pptx."},{"key":"ref_25","unstructured":"Park, M., Lee, W.B., Wu, T., Cariou, L., and Stacey, R. (2022, August 15). Beyond 802.11ax-Throughput Enhancement Utilizing Multi-bands across 2.4 5 6 GHz Bands. Available online: https:\/\/mentor.ieee.org\/802.11\/dcn\/18\/11-18-0857-00-0wng-beyond-802-11ax-throughput-enhancement-utilizing-multi-bands-across-2-4-5-6ghz-bands.pptx."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"88664","DOI":"10.1109\/ACCESS.2020.2993448","article-title":"Current Status and Directions of IEEE 802.11be, the Future Wi-Fi 7","volume":"8","author":"Khorov","year":"2020","journal-title":"IEEE Access"},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"1765","DOI":"10.1007\/s11036-020-01567-7","article-title":"Survey and Perspective on Extremely High Throughput (EHT) WLAN \u2014 IEEE 802.11be","volume":"25","author":"Yang","year":"2020","journal-title":"Mob. Netw. Appl."},{"key":"ref_28","unstructured":"(1997). IEEE Standard for Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications (Standard No. IEEE Std 802.11-1997)."},{"key":"ref_29","doi-asserted-by":"crossref","unstructured":"Bankov, D., Didenko, A., Khorov, E., and Lyakhov, A. (2018, January 30). OFDMA Uplink Scheduling in IEEE 802.11ax Networks. Proceedings of the 2018 IEEE International Conference on Communications (ICC), Kansas City, MO, USA.","DOI":"10.1109\/ICC.2018.8422767"},{"key":"ref_30","doi-asserted-by":"crossref","unstructured":"Avdotin, E., Bankov, D., Khorov, E., and Lyakhov, A. (2019, January 3\u20136). OFDMA Resource Allocation for Real-Time Applications in IEEE 802.11ax Networks. Proceedings of the 2019 IEEE International Black Sea Conference on Communications and Networking (BlackSeaCom), Sochi, Russia.","DOI":"10.1109\/BlackSeaCom.2019.8812774"},{"key":"ref_31","doi-asserted-by":"crossref","unstructured":"Naik, G., Bhattarai, S., and Park, J. (2018, January 30). Performance Analysis of Uplink Multi-User OFDMA in IEEE 802.11ax. Proceedings of the 2018 IEEE International Conference on Communications (ICC), Kansas City, MO, USA.","DOI":"10.1109\/ICC.2018.8422692"},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"8855","DOI":"10.1109\/ACCESS.2022.3140560","article-title":"An Efficient Backoff Procedure for IEEE 802.11ax Uplink OFDMA-Based Random Access","volume":"10","author":"Domino","year":"2022","journal-title":"IEEE Access"},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"3338","DOI":"10.1109\/TMC.2020.3000503","article-title":"Hybrid OFDMA Random Access With Resource Unit Sensing for Next-Gen 802.11ax WLANs","volume":"20","author":"Lanante","year":"2021","journal-title":"IEEE Trans. Mob. Comput."},{"key":"ref_34","unstructured":"(2005). Amendment to IEEE Std 802.11, 1999 Edition (Reaff 2003), IEEE Standard for Information Technology\u2013Local and Metropolitan Area Networks\u2013Specific Requirements\u2013Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications\u2014Amendment 8: Medium Access Control (MAC) Quality of Service Enhancements (Standard No. IEEE Std 802.11e-2005)."},{"key":"ref_35","unstructured":"Bajaj, T. (2022, August 15). Vector Emplace() Function in C++ STL. Available online: https:\/\/www.geeksforgeeks.org\/vector-emplace-function-in-c-stl\/."}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/22\/16\/6209\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T00:11:53Z","timestamp":1760141513000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/22\/16\/6209"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,8,18]]},"references-count":35,"journal-issue":{"issue":"16","published-online":{"date-parts":[[2022,8]]}},"alternative-id":["s22166209"],"URL":"https:\/\/doi.org\/10.3390\/s22166209","relation":{},"ISSN":["1424-8220"],"issn-type":[{"value":"1424-8220","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,8,18]]}}}