Paper Info
Title
Optimum Sensing Bandwidth For Energy-Efficient Cognitive Radio Communications
Abstract
Cognitive radio may discover more idle (unoccupied) spectrum by spending more power for spectrum sensing, while the transmission power can be reduced by using more spectrum (bandwidth). We analyze the tradeoff between the sensing power and transmission power in achieving a given throughput in cognitive radio networks and examine the optimum sensing bandwidth that maximizes the energy efficiency, defined as the number of bits that can be successfully delivered per unit of energy (bits per Joule). Maximizing the energy efficiency enables economical green wireless networks and reduces CO2 emission. The effect of the sensing time, the number of cognitive radios, and the primary user spectrum occupancy rate on the optimum sensing bandwidth is examined in cooperative spectrum sensing.
Year
Venue
Keywords
2015
2015 IEEE INTERNATIONAL CONFERENCE ON UBIQUITOUS WIRELESS BROADBAND (ICUWB)
Cognitive radio networks, spectrum sensing, optimum sensing bandwidth, energy efficiency, sensing-transmission power tradeoff
Field
DocType
Citations 
Wireless network,Efficient energy use,Bandwidth allocation,Electronic engineering,Bandwidth (signal processing),Spectral efficiency,Engineering,Throughput,Joule,Cognitive radio
Conference
2
PageRank 
References 
Authors
0.36
12
3
Name
Order
Citations
PageRank
Sang Wu Kim127047.79
chenxuan cui220.36
Nathan M. Neihart312924.22