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¡¡¡¡¹Ø¼ü´Ê£ºOFDM; DFT; ¶à¾¶Ë¥Âä; ISI; ICI

Wireless Mobile Communications Based on OFDM

ZHANG Zhaoxin

(College of Electronic and Informaiton, Hebei University,Baodin g,071000,China)

¡¡¡¡Abstract£ºIn this article, the principle of OFDM and its application in Mobile C ommunications are introduced by several straightaway picturesª±Firstly ,based o n high utilization of frequency spectrum and reduced multi path fading , explains basic cause of bringing about OFDM¡äs advantages,secondly , analyzes ISI( Int er Symbol Interference) and ICI( Inter Carrier Interference) cance l lation brought by using Cyclic Prefix in a time dispersive channelª±Introduces O FDM¡äs disadvantages in the end
¡¡¡¡Keywords£ºOFDM; DFT; multipath fading; ISI; ICI


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£Û1£Ý١ѧ¼ó£¬ÂÞÌÎ.OFDMÒƶ¯Í¨Ðż¼ÊõÔ­ÀíÓëÓ¦ÓãÛM£Ý.±±¾©£ºÈËÃñÓʵç´óѧ³ö°æÉç, 2003
£Û2£ÝSensitivity of Orthogonal Frequencydivision Multiple xed Systems to Carrier and Clock Synchronization Errors Signal Processing Steendam, Heidi; Moeneclaey,Marcª±2000,80(17)£º1217-1 229
£Û3£ÝÍõÎIJ©£¬Ö£Ù©.¿í´øÎÞÏßͨÐÅOFDM¼¼Êõ£ÛM£Ý.±±¾©£ºÈËÃñÓʵç³ö°æÉ磬2003
£Û4£Ýhttp://www.microelectronic.etechnik. tudarmstadt.de/lec tures/winter/vlsi_comms/download/chap2_OFDM_ basics.pdf. OFDM Bas ics for Wireless Communications
£Û5£Ýhttp://bwrc.eecs.berkeley.edu/People/Grad_Students/dejan/ee225c/ofdm.pdf,OFDM Receiver Design
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