Paging issues and methods for multiaccess

Battery-powered multiaccess devices, with their increased flexibility and reachability, are becoming common. Such devices would have to disassociate their radio accesses from the surrounding networks whenever they are left unused, in order to address battery lifetime limitations. In single-access networks, paging has been proven an effective method for minimizing power consumption. In a heterogeneous multiaccess environment, a paging function may be even more important in extending battery lifetimes. This study investigates the issues at hand, presents related work, analyzes the paging issues in multiaccess scenarios, and proposes two multiaccess paging schemes, which utilize (but do not replace) existing paging functions in access technologies as a foundation to realize multiaccess paging. We further specify how to realize multiaccess paging in Ambient Networks, and present numerical analysis results on the different degrees of battery lifetime savings under different communication, network and device use settings.