Date Added: Jan 2010
The LTE (Long Term Evolution) technologies defined by 3GPP is the last step toward the 4th Generation (4G) of radio technologies designed to increase the capacity and speed of mobile telephone networks. Mobility management for supporting seamless handover is the key issue for the next generation wireless communication networks. The Evolved Packet Core (EPC) standard adopts the proxy mobile IPv6 protocol to provide the mobility mechanisms. However, the PMIPv6 still suffers the high handoff delay and the large packet lost. The authors' protocol provides a new protocol to reduce handoff delay and packet lost with the assistance of relay nodes over LTE networks. In this paper, they consider the security issue when selecting relay nodes during handoff procedure.