Secrecy rate optimization for two-hop relay system with energy#br# harvesting based on cooperative jamming
LEI Wei-jia, JIANG Xue, ZUO Li-jie, XIE Xian-zhong
Systems Engineering and Electronics . 2015, (12): 2835 -2841 .  DOI: 10.3969/j.issn.1001-506X.2015.12.26