
Connectivity ◾ 117
between base stations is utilized over the downlink. In the case of buer forwarding, the source
base station forwards information destined for the mobile device to the target base station, when
the handover process is initiated. On the other hand, in the information bicasting approach, the
SGW bicasts/multicasts the information destined for the mobile device to a set of candidate target
base stations, together with the source base station. Relative to the buer forwarding approach,
bicasting demands a signicantly higher backhaul capacity and may still not be able to eliminate
information loss during the handover process. ...