Cognitive Radio with Secondary Packet-By-Packet Vertical Handover


According to the commons model of cognitive radio, the activity of secondary (unlicensed) nodes is required to guarantee quality-of-service (QoS) constraints on the transmission of primary (licensed) terminals. Towards this goal, vertical handover between different radio interfaces is currently being investigated as a promising solution to enhance flexibility in unlicensed channel access. In this paper, we propose an analysis of cognitive radio with vertical handover capability in a simple scenario with one secondary node and two primary nodes that employ different radio interfaces with packet-based transmission. The maximum stable throughput of the secondary node is evaluated under maximum-delay QoS constraints on the primary activity as a function of system geometry, QoS constraints and sensing errors. Numerical results show the relevant advantages of optimal vertical handover in terms of the throughput of secondary nodes.

DOI: 10.1109/ICC.2008.205

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@inproceedings{Gambini2008CognitiveRW, title={Cognitive Radio with Secondary Packet-By-Packet Vertical Handover}, author={Jonathan Gambini and Osvaldo Simeone and Umberto Spagnolini and Yeheskel Bar-Ness and Yungsoo Kim}, booktitle={ICC}, year={2008} }