In this paper, a scheme for sharing bandwidth-non-orthogonal multiple access (SB-NOMA) based on coordinated multi-point (CoMP) is proposed to improve total sum capacity and user capacity. The proposed algorithm is implemented in a cellular network platform, and the performance is analysed via two cases. First, the network performance is evaluated considerning both channel conditions and interference effects, which is addressed as the worst-case condition. The total network capacity is evaluated assuming Channel Estimation Error (CEE) and Imperfect Successive Interference cancelation (SIC). Second, the network is tested assuming ideal case condition materialized by canceling the effect of inter-channel interference (ICC) of the Base Station (BS) on Near User (NUE). The simulation results show that the capacity increases for SB-NOMA with installed by increasing the number of Cooperative BS (CBSs), where (2bits/Hz/s) is the gain in total capacity that is achieved by increasing the CBSs by one. Moreover, power allocation to the proposed scheme shown (0.15 - 0.85) represents the best value for maintaining capacity achievement.