Energy efficient spectrum sensing and handoff strategies in cognitive radio networks
2013 (English)In: IEEE Communications Magazine, ISSN 0163-6804, E-ISSN 1558-1896Article in journal (Refereed) Submitted
The limited spectrum resources and dramatic growth of high data rate communications have motivated opportunistic spectrum access using the promising concept of cognitive radio networks. Although this concept has emerged primarily to enhance spectrum utilization, the importance of energy consumption poses new challenges, because energy efficiency and communication performance can be at odds. In this paper, the existing approaches to energy efficiency spectrum sensing and handoff are classified. The tradeoff between energy consumption and throughput is established as function of the numerous design parameters of cognitive radio networks, both in the case of local and of cooperative spectrum sensing. It is argued that a number of important aspects still needs to be researched, such as fairness, dynamic behavior, reactive and proactive schemes for energy efficiency.
Place, publisher, year, edition, pages
IEEE Communications Society, 2013.
Cognitive radio networks, energy efficiency, spectrum handoff, spectrum sensing, spectrum mobility
IdentifiersURN: urn:nbn:se:kth:diva-136462OAI: oai:DiVA.org:kth-136462DiVA: diva2:676304
QS 20142013-12-052013-12-052014-04-09Bibliographically approved