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Conference Paper Performance Evaluation of a CR-Based WRAN System using Spectrum Utilization Efficiency
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Authors
Hyun Duk Kang, Heon Jin Hong, Chang Joo Kim
Issue Date
2008-10
Citation
International Conference on Wireless Communications, Networking and Mobile Computing (WiCOM) 2008, pp.1-4
Language
English
Type
Conference Paper
DOI
https://dx.doi.org/10.1109/WiCom.2008.311
Project Code
08MR4500, Development of Spectrum Engineering and Millimeterwave Utiliziing Technology, Kim Chang-Joo
Abstract
A cognitive radio system is one of promising solutions that can relieve the spectrum shortage problem by using spectrum overlay sharing. The performance of a cognitive radio system can be evaluated by the spectral utilization efficiency. Considering net system coverage, we propose area efficiency in order to measure the spectrum utilization efficiency of a CRbased wireless regional area network (WRAN) system over TV bands. Based on a coexistence scenario between WRAN and DTV systems, we evaluate area efficiency and compare it with the conventional ones such as spectral/coverage efficiency. From simulation results it is observed that area efficiency Is more useful than spectral/coverage efficiency under spectrum sharing environment such as the number of available frequency bands and the available amount of given geographical area. © 2008 IEEE.
KSP Keywords
Cognitive Radio System, Coverage efficiency, Performance evaluation, Spectrum utilization, TV Band, Utilization efficiency, Wireless Regional Area Network, area efficiency, coexistence scenario, cognitive radio(CR), frequency band