Handover latency comparison of SIGMA, FMIPv6, HMIPv6, FHMIPv6

In our earlier study, we proposed SIGMA, a seamless IP diversity based generalized mobility architecture. SIGMA utilizes IP diversity to achieve a seamless handover of a mobile host, and is designed to solve many of the drawbacks of mobile IP. In this paper, we compare the handover latency of SIGMA and recent MIPv6 enhancements, namely, FMIPv6, HMIPv6, and FHMIPv6. Various parameters are considered such as layer 2 handover/setup latency, IP address resolution latency, layer 2 beacon period, and mobile host moving speed. Our results show that SIGMA handover latency is insensitive to layer 2 setup latency, IP address resolution latency and beacon periods. Moreover, SIGMA is able to seamlessly handle relatively high speed movement of mobile host