Packet Transmissions in Cognitive Radio Networks: How to Cheaply Get Efficiency and Reliability

Abstract

The ever growing demand for wireless multimedia applications and services occurred in the last years has spurred the research community to tackle several demanding technical challenges. Advanced next-generation wireless systems solicit the designer to solve a hard multi-facet severely constrained problem, that is to say, providing very high data rates under strict quality of service (QoS) levels, while at the same time facing the lack of wide available segments in the overcrowded electromagnetic spectrum