Gateway performance for network‐controlled WLAN IP mobility

Abstract

[173][174][175][176][177][178][179][180][181][182][183][184][185][186][187][188][189][190][191][192]. This paper provides a comparison of WIP with cellular IP (CIP) and mobile IP (MIP), and identifies the main requirements for a broadband-accessed network-based GW that supports WIP mobility. The paper then evaluates GW-contributed handoff message processing delay in the WIP architecture through an analytical system model and OPNET simulation model, and provides a comparison of the GW-contributed handoff message processing delays for non-preemptive vs preemptive queuing schemes. Both analytical and simulation results show that WIP handoff message processing delay at the GW has negligible impact on the overall system delay. Finally, this paper presents the simulation results of the fast routing table lookup and forwarding speed on the GW overall performance, which can assist service providers in the challenging implementation issues that they face.