A low-overhead handover scheme for LTE-Advanced OFDM cellular networks

This paper raises a low-overhead LTE-Advanced relay network handover scheme. When relay involved in the LTE-Advanced cellular network, handover scenario and process will become more complicated. We consider two-hop relay network, the backhaul hop (BS-RS hop) resource is very precious and become a bottleneck of LTE-Advanced network performance. Directly using traditional handover scheme in relay network will bring in a lot of backhaul signaling. So a new handover scheme is raised. The scheme concentrates on reducing signaling cost while ensure users´ QoS.