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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)

Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)

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ÇѱÛÁ¦¸ñ(Korean Title) WCDMA ½Ã½ºÅÛ¿¡¼­ Hybrid Interference Cancellation ±â¹ýÀ» Àû¿ëÇÑ ´ÙÁß»ç¿ëÀÚ °ËÆıâÀÇ ¼º´ÉºÐ¼®
¿µ¹®Á¦¸ñ(English Title) Performance Analysis of the Multi-User Detector Employing a Hybrid Interference Cancellation Scheme in a WCDMA System
ÀúÀÚ(Author) ¼­Á¤¿í   ¿ÀâÇå   ÀåÀº¿µ   Á¶¼ºÁØ   Jung-Wook Seo   Chang-Heon Oh   Eun-Young Chang   Sung-Joon Cho  
¿ø¹®¼ö·Ïó(Citation) VOL 06 NO. 02 PP. 0221 ~ 0227 (2002. 04)
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(Korean Abstract)
º» ³í¹®¿¡¼­´Â 3GPP(3rd Generation Partnership Project) ºñµ¿±â(asynchronous) WCDMA(Wide-band CDMA) ½Ã½ºÅÛ¿¡ HIC(Hybrid Interference Cancellation) ±â¹ýÀÇ MUD (Multi-User Detector)¸¦ Àû¿ëÇÏ¿© Rayleigh ÆäÀ̵ù ä³Î¿¡¼­ BER (Bit Error Rate) ¼º´ÉÀ» ÄÄÇ»ÅÍ ½Ã¹Ä·¹À̼ÇÀ» ÅëÇØ ±¸ÇÏ¿´´Ù. ÀÌ °á°ú¸¦ °¨»êÇü °£¼·Á¦°Å±â¹ýÀÇ ´ëÇ¥ÀûÀÎ ¹æ½ÄÀÎ SIC(Successive Interference Cancellation) ±â¹ý, PIC(Parallel Interference Cancellation) ±â¹ýÀÇ BER(Bit Error Rate) ¼º´É°ú ºñ±³ ºÐ¼®ÇÏ¿´´Ù. ºÐ¼®ÇÑ °á°ú, Àü¼Û·üÀÌ ³ôÀº »ç¿ëÀÚµéÀº PIC ±â¹ýÀ̳ª HIC ±â¹ýÀ» »ç¿ëÇÏ¿© °£¼·À» Á¦°ÅÇÏ´Â °ÍÀÌ È¿°úÀûÀÌ°í, Àü¼Û·ü ÀÌ ³·Àº »ç¿ëÀÚµéÀº SIC ±â¹ýÀ̳ª HIC ±â¹ýÀ» »ç¿ëÇÏ´Â °Ô È¿°úÀûÀ̶ó´Â °ÍÀ» ¾Ë ¼ö ÀÖ¾ú´Ù. ¶ÇÇÑ, Àü¼Û·ü¿¡ ÀÇÁ¸ÇÏÁö ¾Ê°í ¸ðµç »ç¿ëÀÚÀÇ ¼º´ÉÀ» °í·ç ¸¸Á·½ÃÅ°±â À§Çؼ­´Â HIC ±¸Á¶¸¦ »ç¿ëÇÏ´Â °ÍÀÌ È¿°úÀûÀ̾ú´Ù. ±× ÀÌÀ¯·Î¼­´Â ÆäÀ̵ù ä³Î»óÀÇ ÀÌÀ¯¿¡¼­ ¶Ç´Â ¿øÇÏ´Â ¼­ºñ½º¸¦ ¸¸Á·½ÃÅ°±â À§Çؼ­ »ç¿ëÀÚ°¡ Àü·ÂÀ» ³ôÀÏÁö¶óµµ HIC ±â¹ý¿¡¼­´Â Àü´Ü¿¡ »ç¿ëÇÏ´Â SIC¿¡ ÀÇÇØ Àü·ÂÀÌ ³·Àº »ç¿ëÀÚµéÀÇ ¼º´ÉÀ» º¸ÀåÇØÁÖ°í ÈÄ´Ü¿¡ »ç¿ëÇÏ´Â PIC¿¡ ÀÇÇØ SIC °úÁ¤¿¡¼­ Àü·ÂÀÌ ¼¾ »ç¿ëÀÚ°¡ ¹Þ´Â, Àü·ÂÀÌ ¾àÇÑ »ç¿ëÀڷκÎÅÍÀÇ °£¼·ÀÌ È¿°úÀûÀ¸·Î Á¦°ÅµÇ±â ¶§¹®ÀÌ´Ù.
¿µ¹®³»¿ë
(English Abstract)
In this paper, in order to know the effect of the interference, we have analyzed the BER (Bit Error Rate) performance of the MUD(Multi-User Detector) employing HIC(Hybrid Interference Cancellation) scheme for the asynchronous WCDMA system based on 3GPP(3rd Generation Partnership Project) Spec. through the In this paper, in order to know the effect of the interference, we have analyzed the BER (Bit Error Rate) performance of the MUD(Multi-User Detector) employing HIC(Hybrid Interference Cancellation) scheme for the asynchronous WCDMA system based on 3GPP(3rd Generation Partnership Project) Spec. through the computer simulation. we have assumed Rayleigh fading channel. And we have compared its BER performance with SIC's(Successive Interference Cancellation) and with PIC's(Parallel Interference Cancellation), which are the representative schemes in the subtractive interference cancellation. From the results, it is shown that PlC or HIC is effective for high data-rate users and SIC of HIC for low data-rate users to eliminate the interference. Regardless of the data rate, it is reasonable to use the HIC structure for WCDMA system to satisfy all of users' services. The reason is that the SIC scheme in front of HIC can guarantee the performance of low power users to cancel the serious interference caused by the high power users, while PIC in the rear of it can guarantee the performance of high power users to cancel the interference caused by the low power users.
Å°¿öµå(Keyword) WCDMA   MUD   Interference Cancellation   SIC   PIC   HIC  
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