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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)

Current Result Document :

ÇѱÛÁ¦¸ñ(Korean Title) WiMAX/WLAN¿ë ´ÙÁßÇ¥ÁØ LDPC º¹È£±â ¼³°è
¿µ¹®Á¦¸ñ(English Title) A Design of Multi-Standard LDPC Decoder for WiMAX/WLAN
ÀúÀÚ(Author) ¼­ÁøÈ£   ¹ÚÇØ¿ø   ½Å°æ¿í   Jin-Ho Seo   Hae-Won Park   Kyung-Wook Shin  
¿ø¹®¼ö·Ïó(Citation) VOL 17 NO. 02 PP. 0363 ~ 0371 (2013. 02)
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(Korean Abstract)
º» ³í¹®¿¡¼­´Â IEEE 802.16e ¸ð¹ÙÀÏ WiMAX Ç¥ÁØÀÇ 19°¡Áö ºí·Ï±æÀÌ(576¡­2304)¿¡ µû¸¥ 6°¡Áö ºÎÈ£À²(1/2, 2/3A, 2/3B, 3/4A, 3/4B, 5/6)°ú IEEE 802.11n WLAN Ç¥ÁØÀÇ 3°¡Áö ºí·Ï±æÀÌ(648, 1296, 1944)¿¡ µû¸¥ 4°¡Áö ºÎÈ£À²(1/2, 2/3, 3/4, 5/6)À» Áö¿øÇÏ´Â ´ÙÁßÇ¥ÁØ LDPC º¹È£±â¸¦ ¼³°èÇÏ¿´´Ù. Layered º¹È£¹æ½ÄÀÇ ºí·Ï-½Ã¸®¾ó(ºÎºÐº´·Ä) ±¸Á¶¿Í SM(sign-magnitude) ¼öü°è ±â¹ÝÀÇ DFU(decoding function unit)¸¦ Àû¿ëÇÏ¿© Çϵå¿þ¾î º¹Àâµµ¸¦ ÃÖ¼ÒÈ­½ÃÄ×´Ù. ¼³°èµÈ ȸ·Î´Â FPGA ±¸ÇöÀ» ÅëÇØ Çϵå¿þ¾î µ¿ÀÛÀ» °ËÁõÇÏ¿´À¸¸ç, 0.13-§­ CMOS ¼¿ ¶óÀ̺귯¸®·Î ÇÕ¼ºÇÑ °á°ú ¾à 312,000 °ÔÀÌÆ®¿Í 70,000 ºñÆ®ÀÇ ¸Þ¸ð¸®·Î ±¸ÇöµÇ¾ú°í, 100 MHz@1.8V·Î µ¿ÀÛÇÏ¿© 79¡­210 MbpsÀÇ ¼º´ÉÀ» °®´Â °ÍÀ¸·Î Æò°¡µÇ¾ú´Ù.
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(English Abstract)
This paper describes a multi-standard LDPC decoder which supports 19 block lengths(576¡­2304) and 6 code rates(1/2, 2/3A, 2/3B, 3/4A, 3/4B, 5/6) of IEEE 802.16e mobile WiMAX standard and 3 block lengths(648, 1296, 1944) and 4 code rates(1/2, 2/3, 3/4, 5/6) of IEEE 802.11n WLAN standard. To minimize hardware complexity, it adopts a block-serial (partially parallel) architecture based on the layered decoding scheme. A DFU(decoding function unit) based on sign-magnitude arithmetic is used for hardware reduction. The designed LDPC decoder is verified by FPGA implementation, and synthesized with a 0.13-§­ CMOS cell library. It has 312,000 gates and 70,000 bits RAM. The estimated throughput is about 79¡­210 Mbps at 100 MHz@1.8v.
Å°¿öµå(Keyword) LDPC   ¿¡·¯Á¤Á¤ºÎÈ£   WiMAX   WLAN   ÃÖ¼ÒÇÕ ¾Ë°í¸®µë   layered decoding   LDPC   error correction code   WiMAX   WLAN   min-sum algorithm   layered decoding  
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