{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,28]],"date-time":"2025-10-28T10:55:15Z","timestamp":1761648915464,"version":"build-2065373602"},"reference-count":24,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2021,8,9]],"date-time":"2021-08-09T00:00:00Z","timestamp":1628467200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Information"],"abstract":"<jats:p>Cognitive radio (CR) is one of the emerging technologies for 4G\/5G applications. Cooperative relay communications and network coding are some techniques that helped in enhancing the CR applications. This paper considers a primary broadcasting system for multimedia video streaming applications that broadcasts data to the primary users and to an aiding cooperative relay CR secondary system. The cooperative overlay secondary system can use many error control coding techniques for point-to-point data retransmissions such as channel coding, network coding, and combined coding techniques to enhance the system performance under variable channel conditions. This work proposes a novel adaptive combined channel network coding (AC2NC) technique for data retransmissions. The new AC2NC first analyses the channel feedback information and then selects the best retransmission coding technique based on the targeted bandwidth or transmission time optimization. This is instead of using a single static channel or network coding technique with dynamic channel conditions. The proposed AC2NC improves the system throughput, decreases the retransmission time, and avails more spectrum access opportunities for the secondary system\u2019s own data transmissions. The AC2NC relative bandwidth and time saving opportunities for CR users can exceed 90% under certain channel conditions versus some static coding techniques.<\/jats:p>","DOI":"10.3390\/info12080320","type":"journal-article","created":{"date-parts":[[2021,8,9]],"date-time":"2021-08-09T09:03:53Z","timestamp":1628499833000},"page":"320","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Adaptive Combined Channel-Network Coding for Cooperative Relay Aided Cognitive Radio Networks"],"prefix":"10.3390","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1739-9615","authenticated-orcid":false,"given":"Mohamed S.","family":"AbuZeid","sequence":"first","affiliation":[{"name":"Electronics and Electrical Communications Engineering Department, Faculty of Engineering, Cairo University, Giza 12613, Egypt"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9796-7813","authenticated-orcid":false,"given":"Yasmine A.","family":"Fahmy","sequence":"additional","affiliation":[{"name":"Electronics and Electrical Communications Engineering Department, Faculty of Engineering, Cairo University, Giza 12613, Egypt"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Magdy S.","family":"El-Soudani","sequence":"additional","affiliation":[{"name":"Electronics and Electrical Communications Engineering Department, Faculty of Engineering, Cairo University, Giza 12613, Egypt"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2021,8,9]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"745","DOI":"10.1016\/S0923-5965(01)00005-4","article-title":"Forward error correction (FEC) codes based multiple description coding for Internet video streaming and multicast","volume":"16","author":"Puri","year":"2001","journal-title":"Signal Process. Imag. Commun."},{"key":"ref_2","unstructured":"Moreira, J.C., and Farrell, P.G. (2006). Essentials of Error-Control Coding, John Wiley and Sons."},{"key":"ref_3","doi-asserted-by":"crossref","unstructured":"Ao, W.-C., and Chen, K.-C. (2010, January 18\u201321). End-to-End HARQ in Cognitive Radio Networks. Proceedings of the 2010 IEEE Wireless Communication and Networking Conference, Sydney, NSW, Australia.","DOI":"10.1109\/WCNC.2010.5506263"},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"749","DOI":"10.1109\/JSAC.2019.2898784","article-title":"Delay-Sensitive Communications Over IR-HARQ: Modulation, Coding Latency, and Reliability","volume":"37","author":"Sahin","year":"2019","journal-title":"IEEE J. Sel. Areas Commun."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"698","DOI":"10.1587\/transcom.E94.B.698","article-title":"Survey of Network Coding and Its Applications","volume":"94","author":"Matsuda","year":"2011","journal-title":"IEICE Trans. Commun."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"532","DOI":"10.1109\/TWC.2014.2353618","article-title":"Network Coding Based Wireless Broadcast with Performance Guarantee","volume":"14","author":"Wang","year":"2015","journal-title":"IEEE Trans. Wirel. Commun."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"5211","DOI":"10.1109\/JIOT.2021.3056580","article-title":"Practical Network Coding Technologies and Softwarization in Wireless Networks","volume":"8","author":"Zhu","year":"2021","journal-title":"IEEE Internet Things J."},{"key":"ref_8","doi-asserted-by":"crossref","unstructured":"Tran, T., Nguyen, T., and Bose, B. (2008, January 3\u20134). A Joint Network-Channel Coding Technique for Single-Hop Wireless Networks. Proceedings of the 2008 IEEE Fourth Workshop on Network Coding, Theory and Applications, Hong Kong, China.","DOI":"10.1109\/NETCOD.2008.4476175"},{"key":"ref_9","unstructured":"AbuZeid, M.S., Fahmy, Y.A., and El-Soudani, M.M. (2011). IR-HARQ vs. Joint Channel Network Coding for Cooperative Wireless Communication. Cyber J. Multidiscip. J. Sci. Technol. J. Sel. Areas Telecommun. (JSAT) August Ed., 39\u201343."},{"key":"ref_10","first-page":"22","article-title":"Performance Improvement of WSNs using Joint Reed Solomon and Network Coding","volume":"177","author":"Salim","year":"2020","journal-title":"Int. J. Comput. Appl."},{"key":"ref_11","doi-asserted-by":"crossref","unstructured":"Benamira, E., Merazka, F., and Kurt, G.K. (2018, January 27\u201331). Joint Channel Coding and Cooperative Network Coding on PSK Constellations in Wireless Networks. Proceedings of the 2018 IEEE International Conference on Smart Communications in Network Technologies (SaCoNeT), El Oued, Algeria.","DOI":"10.1109\/SaCoNeT.2018.8585449"},{"key":"ref_12","doi-asserted-by":"crossref","unstructured":"Elfergani, I., Hussaini, A.S., Rodriguez, J., and Abd-Alhameed, R. (2018). Antenna Fundamentals for Legacy Mobile Applications and Beyond, Springer International Publishing.","DOI":"10.1007\/978-3-319-63967-3"},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"144778","DOI":"10.1109\/ACCESS.2020.3013698","article-title":"A Comprehensive Survey of \u201cMetamaterial Transmission-Line Based Antennas: Design, Challenges, and Applications\u201d","volume":"8","author":"Alibakhshikenari","year":"2020","journal-title":"IEEE Access"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"6658819","DOI":"10.1155\/2021\/6658819","article-title":"MTM- and SIW-Inspired Bowtie Antenna Loaded with AMC for 5G mm-Wave Applications","volume":"2021","author":"Althuwayb","year":"2021","journal-title":"Int. J. Antennas Propag."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"3922","DOI":"10.1002\/mop.32529","article-title":"A new class of wideband microstrip falcate patch antennas with reconfigurable capability at circular-polarization","volume":"62","author":"Shirkolaei","year":"2020","journal-title":"Microw. Opt. Technol. Lett."},{"key":"ref_16","doi-asserted-by":"crossref","unstructured":"Bagwari, A., Bagwari, J., and Tomar, G. (2019). Cognitive Radio Networks: IEEE 802.22 Standards. Sensing Techniques for Next Generation Cognitive Radio Networks, IGI Global.","DOI":"10.4018\/978-1-5225-5354-0"},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"1511","DOI":"10.1109\/COMST.2014.2361687","article-title":"Interference Mitigation in Cognitive-Radio-Based Femtocells","volume":"17","author":"Kpojime","year":"2015","journal-title":"IEEE Commun. Surv. Tutor."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"1314","DOI":"10.1109\/TVT.2015.2412039","article-title":"Adaptive-TTCM-Aided Near-Instantaneously Adaptive Dynamic Network Coding for Cooperative Cognitive Radio Networks","volume":"65","author":"Liang","year":"2016","journal-title":"IEEE Trans. Veh. Technol."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"1945","DOI":"10.1109\/COMST.2017.2661861","article-title":"Network Coding in Cognitive Radio Networks: A Comprehensive Survey","volume":"19","author":"Naeem","year":"2017","journal-title":"IEEE Commun. Surv. Tutor."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"1924","DOI":"10.1109\/COMST.2017.2690866","article-title":"Cooperative Overlay Spectrum Access in Cognitive Radio Networks","volume":"19","author":"Liang","year":"2017","journal-title":"IEEE Commun. Surv. Tutor."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"188","DOI":"10.1109\/MCOM.2018.1700687","article-title":"Cognitive Non-Orthogonal Multiple Access with Cooperative Relaying: A New Wireless Frontier for 5G Spectrum Sharing","volume":"56","author":"Lv","year":"2018","journal-title":"IEEE Commun. Mag."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"824","DOI":"10.1109\/COMST.2014.2362796","article-title":"Radio Resource Allocation Techniques for Efficient Spectrum Access in Cognitive Radio Networks","volume":"18","author":"Tsiropoulos","year":"2016","journal-title":"IEEE Commun. Surv. Tutor."},{"key":"ref_23","doi-asserted-by":"crossref","unstructured":"Sadeghi, P., Traskov, D., and Koetter, R. (2009, January 15\u201316). Adaptive network coding for broadcast channels. Proceedings of the 2009 IEEE Workshop on Network Coding, Theory, and Applications, Lausanne, Switzerland.","DOI":"10.1109\/NETCOD.2009.5191398"},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"2934","DOI":"10.1109\/TCOMM.2011.091411.070335","article-title":"Generalized Adaptive Network Coded Cooperation (GANCC): A Unified Framework for Network Coding and Channel Coding","volume":"59","author":"Bao","year":"2011","journal-title":"IEEE Trans. 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