  We show that the U(1)-prime models linked with the seesaw mechanism at TeV
scale can lead to a successful baryogenesis through soft leptogenesis with a
resonant behavior in the B parameter. Such a consideration constrains the
Z-prime mass to be larger than 2-3 TeV depending on the seesaw scale and the
spharelon rate. Together with multi-TeV Z-prime, large sneutrino-antisneutrino
mixing and CP violating phenomena required by TeV leptogenesis could be
searched for in future colliders by observing the distinct same-sign
dilepton--dichargino as well as dislepton--diHiggs signatures.
