Evaluation of a Pastry-based P2P Overlay for Supporting Vertical Handover
T. Hoßfeld, S. Oechsner, K. Tutschku, F.-U. Andersen
Research Report 368
Abstract
Vertical handovers (VHO) are expected to be a key feature in
Beyond 3G (B3G) networks. This paper presents and evaluates a
Pastry-based P2P overlay network for supporting vertical handover
in B3G networks. The P2P overlay is used to quickly locate
attachment points (APs) for mobile entities and to retrieve
rapidly the configuration and coverage information of these APs.
The advantage of the P2P-based solution is its distributed nature,
its scalability, and its self-organizing capability. The
performance of the P2P-based VHO support architecture is evaluated
in terms of the search time for APs, the scalability of the
algorithm, and for homogenous and heterogeneous network layouts. In
addition, the solution is compared with the conventional
client-server approach.