Institute of Electrical & Electronic Engineers
SIGMA is an IP diversity-based mobility management scheme that aims to reduce handoff latency and packet loss of mobile IP. In this paper, the authors propose a power-aware version of SIGMA (called PEARS) which reduces power consumption by intelligently switching off network devices, and improves handoff performance by reducing the number of unnecessary handoffs. The effectiveness of PEARS and SIGMA has been evaluated on a Linux-based experimental testbed. PEARS have been found to require considerably less power than SIGMA. The schemes used in PEARS can also be used to reduce power consumption of multi-homed mobile nodes and routers.