移动通信(第四版)李建东-郭梯云编著---西电出版社--课后习题答案

11.5.8.19.[(/)]joutMGSNLsMjG(S/N)outLsG20.PN1.2288Mc/s(c/schip/s,/)9.6kb/s3dB,7dBdBG216.9102288.1log103[(/)]21(73)11joutMGSNLsdB21.m2n12nmn22.n=15m=215-1=32767p662-4(8)(8)(8)(8)(8)10000310000000000000111100131001000000001011120265101000001011010113366310110111101100111423051100010011000101iiiiiCCCCC100003(8)m23.OFDMOFDM1/224.OFDM450kHz32s280~840kb/sOFDMOFDMp8844432128GICPs;(CP)5640TsCPs;CPTs_CP=6×CP=s768;111.56640sfMHzkHzTkHzB450288fBNskbR/37510768288616QAM+1/2skbR/750107684212886(CP)34QPSK+3/4skbR/5.56210768243288625.OFDM(ICI)26.OFDM28.IFFT/FFTOFDM1.2.10dBm10W10dBdBmmWWdB4.200m2m4.12()4.12(2002)64.09dhthrkm5d1=10kmd2=5km450MHz82xkm32.4420lg20lg32.4420lg1520lg450109.03fsLfddB321045010368fc833612131231051010104501047.141510ddxmddp983-421dB74.11xx109.0321130.03LdB4.12()4.12(2002)64.094.12()4.12(2002)64.094.12()4.12(2002)64.09dhthrkmdhthrkm4.12()4.12(2002)64.094.12()4.12(2002)64.094.12()4.12(2002)64.094.12()4.12(2002)64.094.12()4.12(2002)64.094.12()4.12(2002)64.094.12()4.12(2002)64.094.12()4.12(2002)64.094.12()4.12(2002)64.094.12()4.12(2002)64.094.12()4.12(2002)64.094.12()4.12(2002)64.094.12()4.12(2002)64.09200m200m4.12()4.12(2002)64.094.12()4.12(2002)64.09dhthrkmdhthrkm4.12()4.12(2002)64.094.12()4.12(2002)64.094.12()4.12(2002)64.094.12()4.12(2002)64.094.12()4.12(2002)64.0932.4420lg20lg32.4420lg1520lg450109.0346.100m6bGdB3m0mGdB10km150MHz1210W(1)32.4420lg20lg32.4420lg15020lg1095.96fsLfddBp1113-23(,)25mAfddBp1123-24(,)6bbHhddB(,)0mmHhfdB95.96256126.96LdB(2)10lg10610126.96110.9680.96pPdBWdBm11.COST-207IMT-2000PDPCOST-207IMT-200012.AOA1.3Rake/4.2101101021p154,4-17,(a)011010jm000jP00jC1jm011jP11jC51jm110jP10jC0jm101jP01jC1jm011jP11jC00111001118.101,NMSE22NMSE3010,2N=4/MSE432sin(2/)kdkNMSE(1)MSE222011201[][][2cos(2/)][2cos(2/)sin(2/)sin(2(1)/)]kkkkkEeEdxEkNyyEkNkNkN(2)20[]0kEesin(2/)0kN21[]0kEesin(2(1)/)0kNMSE=2[4cos2/]EkN(3))4/2sin(kyk)4/2cos(2kdk2212211111sin()sin()sin((1))222111sin((1))sin()sin((1))222kkkkkkkkkyyyREEyyykkk10001,3,5,....000,2,4,....01kk12cos()sin()2cos()sin((1))2222TTkkkkkkkPEdydyEk001,3,5,....020,2,4,....TTkkMSE=22TTkEdRP11REEREE)ddkkkkkyyyyyykkkkkkkkkREEREEkkkkkkkkkkkkkkk11yyyyyy1111REEREE[4cos2/])4/2cos(42c(211111sin()sin()sin((1))sin()sin()sin((1))sin((1))sin()sin((1))REEREE11REEREEREE62201,3,5,....4cos()40,2,4,.....2kkEdEkkMSE=100000220001,3,5,....0022kMSE=000040220202,4,....0122k42sin(2/)kdkN2241,3,5,....4sin()02,4,.....2kkkEdEk22sin()2sin()sin((1))222TkkPEk201,3,5,....002,4,6,.....TTkk101,3,5,.....00002,4,6,.....01kRkMSE=100040222041,3,5,....0022kMSE=000000220042,4,6,....0122k11.900MHz80/kmh12sks/3.241117.52222mcfTmsf23324.3107.510182NTR1.2.00200200200000001201201201222041,3,5,....22041,3,5,....022041,3,5,....22041,3,5,....22041,3,5,....22041,3,5,....22041,3,5,....22041,3,5,....22041,3,5,....22041,3,5,....22041,3,5,....22041,3,5,....222041,3,5,....22041,3,5,....22041,3,5,....22041,3,5,....22041,3,5,....20000120120120120120120123.4.473.FDMA25kHzFDD100MHzkHzB52100255.100C=5/T=180/15%k5%20%()0375.0159036011805a/75.31000375.0App1845-2B=5%A=3.75n=77B=20%A=3.75n=527TDMATDMATDMA38.CDMAFH-CDMAPNDS-CDMAPN13.14.8km40kmkmrN403kmN4083N8.33N=9j=3i=017.18.MSC21.40km40kmTDMATDMAPNPN8(1)725.777p2105-24MTPSCCPTCAPMAPOMAPISDN-UPSP27.29.RAGSMRARAVLRMTT1HLRMTVLRIDT2VLRMSCMTT3T410.5km2.GSMD-AMPSPDCGSMAMPSPDCTDMA/FDMAGSM200kHz/8/16270kb/s,D-AMPS30kHz/3/648kb/sPDC25kHz,/3/642kb/sGSM22.8kb/sD-AMPS13kb/sPDC11.2kb/sGSMGSM3.123456HLRVLR12D-AMPSD-AMPSTDMA/FDMATDMA/FDMA270kb/s,D-AMPS270kb/s,D-AMPSPDC270kb/s,D-AMPS30kHz30kHz3/622.8kb/sD-AMPS9345(AUC)SIM6HLRVLRHLR--GSMHLRVLR—HLR4.()BSIC5.7-1312126.20ms80bit1294)21/()4340(bit40bit134bitskb/4.13)2120/(1347.TDMAMAHOFDMABSBSBSMSCMSCTDMAMAHOMSFDMAFDMA8.GSM()9.GSM()10.()80bit134bit134bit1011.GPRSGSMGSMGPRS()12.GPRS()1.CDMATDMA2.CDMA3.4.CDMA5.CDMA1/3CDMA6.CDMA117.CDMACDMA8.CDMA9IS-95CDMA×××106×103)×10×1033))