Although control of teleoperated robot systems has been
addressed widely in the last decades, it is not yet clear
what the best control scheme is [2], [6], [7]. When using
scattering-based communication channels, local and remote
sides exchange only velocity and force information, which
may lead to a position drift between master and slave, as
reported in [13]. Moreover, the scattering formalism preserves
passivity of the communication channel in general only for
constant transmission delays [14], [15], and passivity alone is
not sufficient to guarantee good performance. The wave-based
method is inclined to cause the wave reflection problem