{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,13]],"date-time":"2026-03-13T12:25:58Z","timestamp":1773404758287,"version":"3.50.1"},"reference-count":31,"publisher":"MDPI AG","issue":"5","license":[{"start":{"date-parts":[[2015,5,20]],"date-time":"2015-05-20T00:00:00Z","timestamp":1432080000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>The Internet of things (IoT) is a novel paradigm where all things or objects in daily life can communicate with other devices and provide services over the Internet. Things or objects need identifying, sensing, networking and processing capabilities to make the IoT paradigm a reality. The IEEE 802.15.4 standard is one of the main communication protocols proposed for the IoT. The IEEE 802.15.4 standard provides the guaranteed time slot (GTS) mechanism that supports the quality of service (QoS) for the real-time data transmission. In spite of some QoS features in IEEE 802.15.4 standard, the problem of end-to-end delay still remains. In order to solve this problem, we propose a cooperative medium access scheme (MAC) protocol for real-time data transmission. We also evaluate the performance of the proposed scheme through simulation. The simulation results demonstrate that the proposed scheme can improve the network performance.<\/jats:p>","DOI":"10.3390\/s150511628","type":"journal-article","created":{"date-parts":[[2015,5,20]],"date-time":"2015-05-20T11:05:46Z","timestamp":1432119946000},"page":"11628-11652","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":13,"title":["An Energy-Efficient Transmission Scheme for Real-Time Data in Wireless Sensor Networks"],"prefix":"10.3390","volume":"15","author":[{"given":"Jin-Woo","family":"Kim","sequence":"first","affiliation":[{"name":"Research Institute of Information Science and Engineering, Mokpo National University,  Mokpo City 530-729, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jos\u00e9","family":"Barrado","sequence":"additional","affiliation":[{"name":"Department of Applied Physics I, University of Malaga, Avenida Cervantes, 2, M\u00e1laga 29071, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Dong-Keun","family":"Jeon","sequence":"additional","affiliation":[{"name":"Department of Mechatronics, Incheon National University, Incheon City, 406-772, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2015,5,20]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"14","DOI":"10.1109\/MPRV.2011.85","article-title":"Ubicomp systems at 20: Progress, opportunities, and challenges","volume":"11","author":"Caceres","year":"2012","journal-title":"IEEE Pervasive Comput."},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Giusto, D., Iera, A., Morabito, G., and Atzori, L. (2010). The Internet of Things, Springer.","DOI":"10.1007\/978-1-4419-1674-7"},{"key":"ref_3","unstructured":"Ashton, K. (2009). That \u2018Internet of Things\u2019 Thing. RFID J., Available online: http:\/\/www.rfidjournal.com\/article\/view\/4986."},{"key":"ref_4","doi-asserted-by":"crossref","unstructured":"Kunadt, A., Heinig, A., Starke, E., Pfeifer, G., Cherif, C., and Fischer, W.-J. (2010, January 1\u20134). Design and properties of a sensor network embedded in thin fiber reinforced composites. Proceedings of the IEEE Sensors 2010 Conference, Waikoloa, HI, USA.","DOI":"10.1109\/ICSENS.2010.5690085"},{"key":"ref_5","unstructured":"IEEE 802.15 WPAN Task Group 4. Available online: http:\/\/www.ieee802.org\/15\/pub\/TG4.html."},{"key":"ref_6","doi-asserted-by":"crossref","unstructured":"Kushalnagar, N., Montenegro, G., and Schumacher, C.P.P. (2007). IPv6 over Low-Power Wireless Personal Area Networks (6LoWPANs): Overview, Assumptions, Problem Statement, and Goals, IETF. IETF RFC 4919.","DOI":"10.17487\/rfc4919"},{"key":"ref_7","doi-asserted-by":"crossref","unstructured":"Montenegro, G., Kushalnagar, N., Hui, J., and Culler, D. (2007). Transmission of IPv6 Packets over IEEE 802.15.4 Networks, IETF. IETF RFC 4944.","DOI":"10.17487\/rfc4944"},{"key":"ref_8","unstructured":"Routing Over Low Power and Lossy Networks (Roll). Available online: http:\/\/datatracker.ietf.org\/wg\/roll\/."},{"key":"ref_9","unstructured":"ZigBee Alliance Plans Further Integration of Internet Protocol Standards. Available online: https:\/\/docs.zigbee.org\/zigbee-docs\/dcn\/09-5003.pdf."},{"key":"ref_10","unstructured":"Anis, K., Mario, A., and Eduardo, T. (2005). IEEE 802.15.4 for Wireless Sensor Networks: Technical Overview, IPP-HURRAY. IPP-HURRAY Technical Report (TR-050702)."},{"key":"ref_11","unstructured":"Jian, X., Chen, L., Lino, F., and Eduardo, T. (2011, January 5\u20139). An Explicit GTS Allocation Algorithm for IEEE 802.15.4. Proceeding of IEEE 16th Conference on Emerging Technologies & Factory Automation (ETFA 2011), Toulouse, France."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"169","DOI":"10.1007\/s11241-007-9038-x","article-title":"An implicit GTS allocation mechanism in IEEE 802.15.4 for time-sensitive wireless sensor networks: theory and practice","volume":"39","author":"Anis","year":"2008","journal-title":"Real-Time Syst."},{"key":"ref_13","doi-asserted-by":"crossref","unstructured":"Song, J.K., Ryoo, J.-D., Kim, S., Kim, J.W., Kim, H.Y., and Mah, P.S. (2007, January 20\u201323). A dynamic GTS allocation algorithm in IEEE 802.15.4 for QoS guaranteed real-time applications. Proceedings of the IEEE International Symposium on Consumer Electronics (ISCE \u201907), Dallas, TX, USA.","DOI":"10.1109\/ISCE.2007.4382182"},{"key":"ref_14","first-page":"26","article-title":"Enhanced Superframe Structure of the IEEE802.15.4 Standard for Real-time Data Transmission in Star Network","volume":"51","author":"Hou","year":"2012","journal-title":"Int. J. Comput. Appl."},{"key":"ref_15","doi-asserted-by":"crossref","unstructured":"Kramer, G., Maric, I., and Yates, R.D. (2006). Cooperative Communications, Foundations and Trends\u00ae in Networking.","DOI":"10.1561\/1300000004"},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"3062","DOI":"10.1109\/TIT.2004.838089","article-title":"Cooperative diversity in wireless networks: Efficient protocols and outage behavior","volume":"50","author":"Laneman","year":"2004","journal-title":"IEEE Trans. Inf. Theory"},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"2415","DOI":"10.1109\/TIT.2003.817829","article-title":"Distributed space-time coded protocols for exploiting cooperative diversity in wireless networks","volume":"49","author":"Laneman","year":"2003","journal-title":"IEEE Trans. Inf. Theory"},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"1927","DOI":"10.1109\/TCOMM.2003.818096","article-title":"User Cooperation Diversity Part I and Part II","volume":"51","author":"Sendonaris","year":"2003","journal-title":"IEEE Trans. Commun."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"122","DOI":"10.1109\/TWC.2010.01.071135","article-title":"Performance analysis of distributed space-time coded protocols for wireless multi-hop communications","volume":"9","author":"Vajapeyam","year":"2010","journal-title":"IEEE Trans. Wirel. Commun."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"166","DOI":"10.1016\/j.dsp.2009.05.005","article-title":"Performance evaluation for conventional and MMSE multiuser detection algorithms in imperfect reception conditions","volume":"20","author":"Halunga","year":"2010","journal-title":"Digit. Signal Process."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"191","DOI":"10.1016\/j.dsp.2009.05.007","article-title":"Imperfect cross-correlation and amplitude balance effects on conventional multiuser decoder with turbo encoding","volume":"20","author":"Halunga","year":"2009","journal-title":"Digit. Signal Process."},{"key":"ref_22","doi-asserted-by":"crossref","unstructured":"Shamna, H.R., Appari, N.L., and Jacob, L. (2013, January 19\u201321). Co-operative MAC protocol: Performance modeling and analysis. Proceedings of the IEEE Recent Advances in Intelligent Computational Systems (RAICS 2013), Trivandrum, India.","DOI":"10.1109\/RAICS.2013.6745479"},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"340","DOI":"10.1109\/JSAC.2007.070210","article-title":"CoopMAC: A cooperative MAC for wireless LANs","volume":"25","author":"Liu","year":"2007","journal-title":"IEEE J. Sel. Areas Commun."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"1201","DOI":"10.1109\/TMC.2006.137","article-title":"rDCF: A relay-enabled medium access control protocol for wireless ad hoc networks","volume":"5","author":"Zhu","year":"2006","journal-title":"IEEE Trans. Mob. Comput."},{"key":"ref_25","doi-asserted-by":"crossref","unstructured":"Feng, J., Zhang, R., Ng, S., and Hanzo, L. (2011, January 27\u201331). Relay selection for energy efficient cooperative media access control. Proceedings of the IEEE Wireless Communications and Networking Conference (WCNC 2011), Cancun, Mexico.","DOI":"10.1109\/WCNC.2011.5779142"},{"key":"ref_26","doi-asserted-by":"crossref","unstructured":"Ben Nacef, A., Senouci, S.-M., Ghamri-Doudane, Y., and Beylot, A.-L. (2011, January 5\u20139). A cooperative low power mac protocol for wireless sensor networks. Proceedings of the IEEE International Conference on Communications (ICC 2011), Kyoto, Japan.","DOI":"10.1109\/icc.2011.5962416"},{"key":"ref_27","unstructured":"Nguyen, D.-L., Tran, L.-Q.-V., Berder, O., and Sentieys, O. (2013, January 9\u201313). A Low-Latency and Energy-Efficient MAC Protocol for Cooperative Wireless Sensor Networks. Proceedings of the IEEE Global Communications Conference (GLOBECOM 2013), Atlanta, GA, USA."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"1173","DOI":"10.1007\/s11276-011-0338-7","article-title":"On enabling cooperative communication and diversity combination in IEEE 802.15.4 wireless networks using off-the-shelf sensor motes","volume":"17","author":"Ilyas","year":"2011","journal-title":"Wirel. Netw."},{"key":"ref_29","unstructured":"OMNeT++ Homepage. Available online: http:\/\/www.omnetpp.org."},{"key":"ref_30","unstructured":"Chen, F., and Dressler, F. (2007, January 16\u201317). A Simulation Model of IEEE 802.15.4 in OMNeT++. Proceedings of the 6. GI\/ITG KuVS Fachgespr\u00e4ch Drahtlose Sensornetze, Aachen, Germany."},{"key":"ref_31","unstructured":"Texas Instruments CC2630 Datasheet. Available online: http:\/\/www.ti.com."}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/15\/5\/11628\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T20:46:37Z","timestamp":1760215597000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/15\/5\/11628"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2015,5,20]]},"references-count":31,"journal-issue":{"issue":"5","published-online":{"date-parts":[[2015,5]]}},"alternative-id":["s150511628"],"URL":"https:\/\/doi.org\/10.3390\/s150511628","relation":{},"ISSN":["1424-8220"],"issn-type":[{"value":"1424-8220","type":"electronic"}],"subject":[],"published":{"date-parts":[[2015,5,20]]}}}