Coexistence between Cognitive Radio Network and Digital TV
Macau（2009）
摘要
In order to study the coexistence between cognitive radio network and incumbent services, two representative systems of WRAN and DTV were selected. A simple interference analysis method was proposed through a coexistence scenario. Through calculation and simulation, a series of critical values were found. 8 km and 20 km of WRAN cell radius are of great significance to control the interference to DTV. If WRAN cell radius less than 8 km, more than one tier of interferers are permitted. On the other hand, when WRAN cell radius exceeds 20 km, the distance from DTV receiver to WRAN BS should be larger than the sum of the two radiuses (R+r).
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关键词
critical value,dtv receiver,wran bs,interference analysis method,digital tv,interference control,coexistence,simple interference analysis method,incumbent service,cognitive radio,wireless regional area networks,wran cell radius,distance 8 km,cognitive radio network,radiofrequency identification,great significance,coexistence scenario,wran cell,interference suppression,distance 20 km,interference,wran,digital television,antennas,tv,bit error rate
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