Abstract:
In the field of Internet-of-Things, Constrained application Protocol (CoAP) has
emerged as a new protocol. Recently, some mobility schemes have been proposed based
on constrained application protocol based proxy mobile IPv6 (CoAP PMIP). This
mobility scheme tends to induce large handover delay and signalling cost because of
using a centralized local mobility anchor (LMA) for mobility management and data
delivery. To address these problems, a hash-based proxy mobile IPv6 based
constrained application protocol is proposed, named CoAP-PMIP-Hash. In the
proposed scheme, the functions of Local Mobility Anchor (LMA) are distributed among
each Mobile Access Gateway (MAG). The control functions for binding update and
query operations are performed based on a hash function. From the simulation results,
it is shown that the proposed scheme performs better than the existing scheme in terms
of the end-to-end delay, throughput, and signalling cost.
