The Journal of China Universities of Posts and Telecommunications
Energy efficiency optimization of cognitive relay network based on cooperative spectrum sensing
Song Yaolian, Zhang Fan, Shao Yubin, Long Hua
Acta Metallurgica Sinica(English letters) . 2015, (3): 26 -34 .  DOI: 10.1016/S1005-8885(15)60649-5

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