“…However, the soliton transmission process can be simulated more accurately with the variable coefficient NLS (vcNLS) equation, when the transmission medium or boundary condition is not uniform [33], [34], [35], [36], [37], [38], [39], [40]. For the vcNLS equation, dynamics of solitons have been explored [33], and soliton interactions have been discussed [34], [35]. In addition, the breather-to-soliton transitions for the vcNLS equation have been found [36], and nonautonomous multipeak solitons have been obtained [37].…”