Cool-Tether: energy efficient on-the-fly wifi hot-spots using mobile phones
Proceedings of the 5th international conference on Emerging networking experiments and technologies
Experimental validation of analytical performance models for IEEE 802.11 networks
COMSNETS'10 Proceedings of the 2nd international conference on COMmunication systems and NETworks
IEEE Communications Magazine
Context-based opportunistic forwarding in multi-hop cellular networks using mobile relays
Proceedings of the 2nd ACM workshop on High performance mobile opportunistic systems
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Multi-hop Cellular Networks using Mobile Relays (MCN-MR) are being studied to overcome certain limitations of traditional single hop cellular systems through the integration of cellular and Peer to Peer (P2P) ad-hoc communications. Current MCN-MR research is generally analytical or simulation based, and there is yet the need for studies that empirically demonstrate the potential of MCN-MR and provide valuable models for the research community. In this context, this paper presents the first 2-hop MCN-MR empirical performance models derived from field tests over live networks. The MCN-MR performance is measured for downlink transmissions as the throughput experienced by mobile users. The model parameters are shown to depend on the distance, Line-Of-Sight (LOS) or Non-LOS (NLOS) conditions, and communication settings of the ad-hoc link. As a result, the paper also reports a set of distance-based empirical P2P link level models.