Performance issues for localised IP mobility management

Base IP mobility presents performance limitations when a mobile host increases its handoff rate between successive wireless points of attachment as a result of its mobility pattern. These limitations are augmented when latency externalities such as the round trip time between the mobile node and its peers, add to the total of latency and signalling overhead, impeding the performance of the mobility function. To alleviate that, IP mobility management has been extended by localised IP mobility management (LMM) functions focusing within the context of micromobility. This paper presents an investigation on performance issues for LMM. Based on generic principles derived from the effect of localising mobility control signalling, it explores the behaviour of the localisation effect of the mobility management entity.