Analysis on Interference of DTV into CDMA
In-Kyoung Cho, Yanming Cheng, Yong-Sup Shim, SangHyun Chang, Il-Kyoo Lee · ICEIC : International Conference on Electronics, Informations and Communications · 2010
Korea has made a plan to allocate CH 14~ CH 51(470 ㎒~698 ㎒) for DTV. Therefore, it is necessary to take into account compatibility between DTV and other potential service systems. This paper assumes that DTV operates on CH 51 (692 ㎒~ 698 ㎒) and CDMA operates on CH 52 (698 ㎒~704 ㎒) in spare band, and then analyzes interference of DTV into CDMA. According to interference scenarios, protection requirements and system parameters, in the case of DTV potentially interferes into CDMA, in the worst case, Minimum Coupling Loss (MCL) method is used to determine that the required protection distance between DTV and CDMA BS should be more than 665.67 ㎞; and Spectrum Engineering Advanced Monte Carlo Analysis Tool (SEAMCAT) is used to determine that the guard band between DTV and CDMA MS is 11.25 ㎒ for the worst case of rural environment. The analysis results may offer a reference and be helpful for considering interference of DTV into CDMA before DTV will be used.