BRIDGE: Border-node assistance for diffusion through a gating mechanism for collocated WPANs

IEEE 802.15.4 Wireless Personal Area Networks (WPANs) are envisaged to play an important role in future ubiquitous network applications. When multiple PANs operate in the same area called personal operating space (POS), they are not aware of each other´s presence and hence not able to communicate with each other. In this paper, we present a framework for intercommunication of neighboring PANs located in the same area through sensor nodes residing at the border. By time sharing the logical channels, a gating operation is performed by the border sensor nodes of two non-interfering PANs. The framework includes detecting neighboring PAN, identifying border sensor nodes and a gating protocol. The simulation results show improvement in delivery ratio when number of border sensor nodes is increased.