TY - GEN
T1 - A layer 2 scheme for inter-RAT handover between UMTS and WiMAX in tight coupling architecture
AU - Liu, Bin
AU - Martins, Philippe
AU - Samhat, Abed Ellatif
AU - Berlin, P.
PY - 2008/12/1
Y1 - 2008/12/1
N2 - The future B3G or 4G mobile networks will consist of heterogeneous networks, including GSM, UMTS, and WiMAX. In order to realize a seamless vertical handover (inter-RAT handover), a variety of interworking architectures and inter-RAT handover mobility managements have been proposed. In this paper we consider the tight coupling architecture to achieve the interconnection between UMTS and WiMAX systems. A novel common interworking sublayer (IW sublayer) is proposed at layer 2 on RNC, W-RNC and UE to provide a seamless PS inter-RAT handover between UMTS and WiMAX. This IW sublayer scheme, which features SR ARQ mechanism, focuses on eliminating packet loss and reducing handover latency that are common problems for most inter-RAT handover scenarios. The simulation results of the tight coupling architecture show that, compared with other context transfer schemes like buffering-and-forwarding of FMIPv6, the IW sublayer solution can achieve a lossless and prompt handover.
AB - The future B3G or 4G mobile networks will consist of heterogeneous networks, including GSM, UMTS, and WiMAX. In order to realize a seamless vertical handover (inter-RAT handover), a variety of interworking architectures and inter-RAT handover mobility managements have been proposed. In this paper we consider the tight coupling architecture to achieve the interconnection between UMTS and WiMAX systems. A novel common interworking sublayer (IW sublayer) is proposed at layer 2 on RNC, W-RNC and UE to provide a seamless PS inter-RAT handover between UMTS and WiMAX. This IW sublayer scheme, which features SR ARQ mechanism, focuses on eliminating packet loss and reducing handover latency that are common problems for most inter-RAT handover scenarios. The simulation results of the tight coupling architecture show that, compared with other context transfer schemes like buffering-and-forwarding of FMIPv6, the IW sublayer solution can achieve a lossless and prompt handover.
KW - FMIPv6
KW - Inter-RAT handover
KW - Layer 2
KW - TCP
KW - Tight coupling
KW - UMTS
KW - Vertical handover
KW - WiMAX
UR - https://www.scopus.com/pages/publications/69949155054
U2 - 10.1109/PIMRC.2008.4699522
DO - 10.1109/PIMRC.2008.4699522
M3 - Conference contribution
AN - SCOPUS:69949155054
SN - 9781424426447
T3 - IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
BT - 2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2008
T2 - 2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2008
Y2 - 15 September 2008 through 18 September 2008
ER -