@article {Gmira20181436, title = {A New Energy Efficiency/Spectrum Efficiency Model for Cooperative Cognitive Radio Network}, journal = {Mobile Networks and Applications}, volume = {23}, number = {5}, year = {2018}, pages = {1436-1448}, doi = {10.1007/s11036-018-1078-z}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85055932107\&doi=10.1007\%2fs11036-018-1078-z\&partnerID=40\&md5=2a9aa8fcbffa8cca76f1910b052525eb}, author = {Gmira, S. and Kobbane, A. and Ben-Othman, J. and El Machkour, M.} }