Table 1 Signaling overheads of HIP, Micro-HIP, and our proposed scheme

# of UPDATE packets per handover when communicating with two CNs

9

3

2

# of UPDATE packets per handover when communicating with n CNs

3*(n + 1)

3

2

Signaling overheads on MN's interface

Yes

Yes

No

Signaling overheads due to configuration of new IP address

Yes

Yes

No