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Signaling and Routing Protocols for iCAR
Hongyi Wu, Chunming Qiao and Sudhir S. Dixit

Based on the integration of cellular and IEEE 802.11 technologies, the iCAR (integrated Cellular and Ad hoc Relaying) system was recently proposed to address the congestion problem due to limited bandwidth in a cellular system and provide interoperability for heterogeneous networks. In this paper, we present three signaling and routing protocols for establishing QoS (e.g., bandwidth) guaranteed connections for IP traffic in iCAR. In particular, we discuss how to establish a relaying route between an MH (Mobile Host ) and a BTS (Base Transceiver Station) in a nearby cell via ARSs (Ad hoc Relaying Stations ), and evaluate the performance of the protocols in terms of request rejection rate and signaling overhead through both analysis and simulations.

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