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As integration of heterogeneous networks has become one of the most important characters for next-generation networks, it becomes a very challenging issue to ensure effective handoff when mobile node moves between different heterogeneous networks. In this paper we propose an effective handoff mechanism based on location information. By processing geographical data (consisting of information about...
In this paper, we consider an OFDMA-based two-hop relay network which consists of a single base station, dedicated fixed relay stations and subscriber stations. We investigate the optimal location of the relay stations aiming to maximize system throughput. We also focus on the impact of different relay strategies (i.e., decode-and-forward vs. amplify-and-forward) for each source-destination pair on...
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