电力物联网中节能的免许可D2D接入算法设计
孙晨,吴哲奕,袁建涛

Energy saving and channel access algorithm of unlicensed D2D networks in power Internet of things
Chen SUN,Zhe-yi WU,Jian-tao YUAN
图 2 免许可信道的传输周期
Fig.2 Transmission period time on unlicensed channels