数字移动系统的同频干扰及通信间断率

123123GSM1CCIqCIRAMPSCIR1890%CIR18[1]GSMDCS-1800CIR93129dB[2]dBdBdBdBdBqqOutageProbability12coutPXqYPPXPP−=≤≥−=1)()(1min1XYGSM-80dBm~-88dBmYcPminPminP2UNRDU3==2DRGSM=3U=3ND33×N43×=4=3.464=7U=4.5826NU73×NdB1nd−⋅=κµfdd3221)(nnnfdd−+−⋅⋅=κµfdd≥κf1n2n1n2.18~2.072n3.29~4.16=2=4d1n2nRD−RD−CIRfdfdR22)1(nnYXURRDCIR−=⎟⎠⎞⎜⎝⎛−==µµ,4fdR=2fdRfdRCIR221)1(2nnnUCIR−=+fdR5LOSRician[3]Nakagami[4]Rician/Nakagami[5]outP()[]()[]∑∫∏∞=∞−=−+−−⎪⎩⎪⎨⎧⎢⎢⎣⎡+++⎟⎠⎞⎜⎝⎛+=002/1212/)1(222/1)1/(1!121hmLkkhhKoutkqttktKhePλσσπ⎪⎭⎪⎬⎫⎥⎦⎤⎥⎦⎤⎢⎣⎡++−∑=−−dtKthqtmLkkk12111tan)1()/(tansinσλ6KRicianNakagami456URician2σkmkKqLUKi.i.d=[22]kmkΩ=[44]=12qdBfdRK0510U1KU2q1KUi.i.d=[333]=[333]qkmkΩK=10912182qdBqqLUK=5=12=2qdBkmkΩ=2.5Lk,,1L=L13633L1KU3DTXGSM9GSM122SIR923q12dB26dB3dBqdBdB210−qdBdB1.C.Y.1990.2A...1997.13R.J.C.BuktitudeandG.K.Bedal,Propagationcharacteristicsonmicrocellularurbanmobileradiochannelsat910MHz,''IEEEJ.Select.AreasCommun.,vol.7,pp.31-39,Jan.1989.4A.A.Abu-DayyaandN.C.Beaulieu,''OutageProbabilitiesofcellularmobileradiosystemwithmultipleNakagamiinterference,''IEEETrans.VehTechnol.,vol.40,pp.756-768,Nov.1991.52000197520001956198219961944