X Chen,
FK Gong, G Li, H Zhang… - IEEE Communications …, 2017 - ieeexplore.ieee.org
… where s1,i and s2,i denote the signal for the first user and the second user in the i-th pair (i
= 1, 2,..., N), α1,i and α2,i represent the corresponding power allocation coefficients, α1,i + α2,i …