Performance analysis of 3G systems in presence of UWB interference  

作　　者：SUN Xue-bin GAO Ming-liang ZHOU Zheng ZHAO Cheng-lin LIU Wei 

机构地区：[1]School of Telecommunication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China [2]China Mobile Research Institute (China), Beijing 100053, China

出　　处：《The Journal of China Universities of Posts and Telecommunications》2011年第2期120-124,共5页中国邮电高校学报（英文版）

基　　金：supported by the National Natural Science Foundation of China (60902046,60972079);the National major special science and technology project of China (2009ZX03006-006,2009ZX03006-009)

摘　　要：In this paper,the impact of the interference from multiple ultra wideband（UWB） transmitters to a 3rd-generation（3G） terminal is evaluated under UWB emission power limit regulations of federal communications commission（FCC）,european telecommunications standards institute（ETSI） and Japan respectively.A three-dimensional interference model is presented where a discrete spatial distribution of UWB transmitters is considered.It is assumed that a mobile terminal and a large number of UWB devices exist in one room simultaneously.A parameter which characterizes the link budget degradation at the victim receiver is defined to measure the UWB interference to 3G systems.The maximum acceptable density of UWB transmitters and the minimum acceptable distance between UWB transmitters and the 3G terminal are analyzed under different link budget degradations.The simulation results demonstrate that the performance of time division-synchronous code division multiple access（TD-SCDMA） is the best,the one of code division multiple access 2000（CDMA2000） is the worst and the one of wideband code division multiple access（WCDMA） lies between them in presence of UWB interference.In this paper,the impact of the interference from multiple ultra wideband（UWB） transmitters to a 3rd-generation（3G） terminal is evaluated under UWB emission power limit regulations of federal communications commission（FCC）,european telecommunications standards institute（ETSI） and Japan respectively.A three-dimensional interference model is presented where a discrete spatial distribution of UWB transmitters is considered.It is assumed that a mobile terminal and a large number of UWB devices exist in one room simultaneously.A parameter which characterizes the link budget degradation at the victim receiver is defined to measure the UWB interference to 3G systems.The maximum acceptable density of UWB transmitters and the minimum acceptable distance between UWB transmitters and the 3G terminal are analyzed under different link budget degradations.The simulation results demonstrate that the performance of time division-synchronous code division multiple access（TD-SCDMA） is the best,the one of code division multiple access 2000（CDMA2000） is the worst and the one of wideband code division multiple access（WCDMA） lies between them in presence of UWB interference.

关 键 词：UWB TD-SCDMA CDMA2000 WCDMA INTERFERENCE 

分 类 号：TN929.5[电子电信—通信与信息系统] TU356[电子电信—信息与通信工程]