  Technological developments alongside VLSI achievements enable mobile devices
to be equipped with multiple radio interfaces which is known as multihoming. On
the other hand, the combination of various wireless access technologies, known
as Next Generation Wireless Networks (NGWNs) has been introduced to provide
continuous connection to mobile devices in any time and location. Cognitive
radio networks as a part of NGWNs aroused to overcome spectrum inefficiency and
spectrum scarcity issues. In order to provide seamless and ubiquitous
connection across heterogeneous wireless access networks in the context of
cognitive radio networks, utilizing Mobile IPv6 is beneficial. In this paper, a
mobile device equipped with two radio interfaces is considered in order to
evaluate performance of spectrum handover in terms of handover latency. The
analytical results show that the proposed model can achieve better performance
compared to other related mobility management protocols mainly in terms of
handover latency.
