Energy and Throughput Tradeoff in Temporal Spectrum Sharing
2012 (English)In: 2012 7th International ICST Conference on Cognitive Radio Oriented Wireless Ntworks and Communications, CROWNCOM 2012; Stockholm; 18 June 2012 through 20 June 2012, IEEE Computer Society, 2012, 265-269 p.Conference paper (Refereed)
It is envisaged that diverse types of short-range wireless systems coexist in shared spectrum in a near future. For low-power systems, throughput and energy efficiency are two design objectives that often conflict with each other. In this paper, we investigate the tradeoff between the throughput and the energy efficiency for a data-hungry but battery-driven low-power network which opportunistically shares radio spectrum in temporal domain. We provide a mathematical framework that determines the optimum frame lengths for the different objectives, and analyze the tradeoff. To this purpose, we propose an energy consumption model that reflects the characteristics of low-power transceivers including power consumption at the receiver side. Numerical results show that the optimum frame length for energy efficiency results in significant loss in throughput, and vice versa. This suggests that the transmission duration of the opportunistic network should be chosen depending on the prime system objective.
Place, publisher, year, edition, pages
IEEE Computer Society, 2012. 265-269 p.
Temporal spectrum sharing, throughput, energy efficiency, sensing, power consumption
IdentifiersURN: urn:nbn:se:kth:diva-107905DOI: 10.4108/icst.crowncom.2012.248433ISI: 000310377900047ScopusID: 2-s2.0-84869384914ISBN: 978-1-936968-55-8OAI: oai:DiVA.org:kth-107905DiVA: diva2:578794
2012 7th International ICST Conference on Cognitive Radio Oriented Wireless Ntworks and Communications, CROWNCOM 2012; Stockholm;18 June 2012 through 20 June 2012
ProjectsEnergy-efficient wireless networking (eWIN)
FunderICT - The Next GenerationWireless@kth
QC 201212192012-12-192012-12-192014-05-05Bibliographically approved