Performance Evaluation of a CR-based WRAN System using Spectrum Utilization Efficiency
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.
Spectrum utilization efficiency cognitive radio spectrum overlay sharing DTV and TV channels
Hyunduk Kang Heonjin Hong Changjoo Kim
Radio Technology Research Department Electronics and Telecommunications Research Institute Republic of Korea
国际会议
大连
英文
1-4
2008-10-12（万方平台首次上网日期，不代表论文的发表时间）