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- W2160173669 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 CR- based 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." @default.
- W2160173669 created "2016-06-24" @default.
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- W2160173669 date "2008-10-01" @default.
- W2160173669 modified "2023-09-27" @default.
- W2160173669 title "Performance Evaluation of a CR-Based WRAN System using Spectrum Utilization Efficiency" @default.
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- W2160173669 doi "https://doi.org/10.1109/wicom.2008.311" @default.
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