现代移动通信-蔡跃明-第三版-习题参考答案

11.123452.12900MHz2200MHz30m/s80m/s900MHz30m/s80m/s61118309001090()310mffHzc622288090010240()310mffHzc2200MHz30m/s80m/s26111830220010220()310mffHzc6222880220010586.7()310mffHzc3/0.1sT(BER)P14()0dB-10dB-20dB-30dBrP()5075100a(ns)0dB-10dB-20dB-30dBrP()510b()s002-2614ans725.27]01.01.011[)100)(01.0()75)(1.0()50)(1()0)(1(2222228.149801.01.011)100)(01.0()75)(1.0()50)(1()0)(1(nsrms:ns27)725.27(8.149821.0/sTnsTs27010nsTs270minb(0.01)(0)1*(5)(0.1)(10)5.41[10.10.01]s22222(0.01)(0)1*(5)(0.1)(10)31.530.0110.1s3rms:231.53(5.41)1.50s1.0/sT1015sTsmin15sTsab15s45BsDBscsDTTBBBsDBcscsBBTT61800MHz40m6dB1m1dB10km:1210W1()32.4420lg()20lg()fsLdBdkmfMHz117.5455dB)1800lg(20)10lg(2044.32fsL4dBdhHbb14),(dBfhHmm4),(dBdfAm33),((,)(,)(,)MfsmbbmmLLAfdHhdHhfdBLM5455.168144335455.1172(,)(,)(,)MfsmbbmmLLAfdHhdHhfdmbmbMTRLLLGGLPPdBWGGLPPmbMTR5455.151165455.16810)lg(107900MHz10km80m6dB1.5m0dB-102dBm1()32.4420lg()20lg()fsLdBdkmfMHz111.5249dB)900lg(20)10lg(2044.32fsLdBdhHbb8),(dBfhHmm3),(dBdfAm7.29),((,)(,)(,)MfsmbbmmLLAfdHhdHhfdBLM2249.152837.295249.1112(,)(,)(,)MfsmbbmmLLAfdHhdHhfdmbmbMTRLLLGGLPP5dBWPGGLPPTmbMTR132062249.152)lg(10)lg(10WPT4539.261.123452.3.8km40kmRND3kmDkmR40,8403RN335NijjiN22NN=39610.100C5/0t180/K15520)(0375.0360015.018053600ErlCTKA)(75.30375.0100ErlUAAErl8%20512.()13.1.//1.,2.73.1LMSLMS2()EenLMST()()endnnnX()W()12()nnuennW()W()X()nX()n(|x)dn()dn()en()ennX()()enunX()1nnW()nW()nLMSmax01/umax(2)RLSRLSnW()21()()nniiJneiRLSnxxR()RLSRLSRLSRLSRLSFastRLS8FastRecursiveLeastSquaresLatticeRLS4./RAKE5.RLSLMSLMS2()EenRLSnW()21()()nniiJneiRLSnxxR()RLS6.RAKECDMARAKE5.1-1RAKECDMA0()mt1()mt)(trCDMA12L5.1-1RAKE9RAKEL7.900MHzv=80km/h,1224.3ks/s1290.4230.4230.4236.34ms16cmmcTffvfv224.3/243000.00634154cNkbsT1.FDMATDMACDMA(FDMA)(TDMA)(CDMA)5FDMA25kHzFDD100FDD2510025002.5kHzMHz6FDMATDMACDMAa)b)c)d)FDMATDMACDMAFDMATDMACDMA7OFDMAOFDMAOFDM10OFDMA1OFDMA2OFDMA3CDMAOFDMA8OFDM-TDMAOFDM-TDMAOFDMTDMAOFDMOFDM-TDMA1OFDM-TDMAOFDM2OFDM-TDMA/10.OFDMCDMACDMAOFDMCDMAOFDMOFDMCDMA:(1)MC-DS-CDMANcNcOFDM(2)MT-CDMAMC-DS-CDMAOFDM(3)MC-CDMAcNcNMC-CDMACDMA1.GSMGSM112.GSMMSMSTEBTSBSCMSCOMCBTSEIRBSCAUCHLRVLRPSTNISDNPDN3.TDMATDMABTSMSTDMABTSMSBCCHCCCHTS0BCCHCCCH51TS0TS051TDMAFS4.-70dB3bitRACHMSBSAB5.12TMSITMSIMSBSMSCVLRTMSITMSITMSITMSIMSRNMSRNHLRVLRVMSCBSMSIS-95/13PNIS-951/21/313G33G23G33GCNRANMTUIM43G2G11232341453GITU33144kbit/s384kbit/s2Mbit/s63GWCDMAcdma2000TD-SCDMAWiMAX3.1IPWLANLAN2G3G2IPIPv6Internet31Gbps100Mbps8kbps100Mbps3G