On the Tradeoffs of Cross-Layer Protocols for Cognitive Radio Networks
Cristina Comaniciu, Nie Nie, Katia Jaffr√®s-Runser · Auerbach Publications eBooks · 2008
Cross-layer solutions have been extensively proposed for various types of wireless networks. Although the literature is rich in showing the benefits for this approach, the inherent drawbacks associated with an increased overhead are seldom analyzed. In this book chapter, we attempt to better understand the tradeoffs involved with cross-layering for the new emerging generation of wireless networks that adds intelligence, flexi-bility and control to the network nodes. To this extent we propose a joint distributed power control, routing and MAC protocol for cognitive radio networks and we obtain performance tradeoffs via analysis and simulation. Wireless networks are evolving towards networks of small, smart devices which opportunistically share the wireless spectrum with minimal in-frastructure and coordination. The new generation of smart terminals can provide intelligent adaptive services by adjusting to the environment thanks