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ICC
2008
IEEE

Cognitive Radio with Secondary Packet-By-Packet Vertical Handover

8 years 8 months ago
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.
Jonathan Gambini, Osvaldo Simeone, Umberto Spagnol
Added 30 May 2010
Updated 30 May 2010
Type Conference
Year 2008
Where ICC
Authors Jonathan Gambini, Osvaldo Simeone, Umberto Spagnolini, Yeheskel Bar-Ness, Yungsoo Kim
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