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Current Result Document :

ÇѱÛÁ¦¸ñ(Korean Title) IEEE802.16j ±â¹ÝÀÇ 2-È© ¼¿·ê·¯ Áß°è½Ã½ºÅÛ¿¡¼­ ÇÏÇ⸵ũ Á¢±Ù¿µ¿ª°ú Á߰迵¿ª¿¡ ´ëÇÑ ÃÖÀû ¹«¼±ÀÚ¿ø ÇÒ´ç¹æ¹ý ¿¬±¸
¿µ¹®Á¦¸ñ(English Title) A Study on the Optimal Wireless Resource Allocation for the Access and Relay Zones of Downlink in a 2-hop Cellular Relay System based on IEEE802.16j
ÀúÀÚ(Author) ÀÌÀÎȯ   ±è¼¼Áø   Á¶¼ºÈ£   In Hwan Lee   Se-Jin Kim   Sung Ho Cho  
¿ø¹®¼ö·Ïó(Citation) VOL 11 NO. 03 PP. 0043 ~ 0051 (2010. 06)
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(Korean Abstract)
º» ³í¹®¿¡¼­´ÂOFDMA-TDD ±¸Á¶¸¦ °®´Â IEEE802.16j ±â¹ÝÀÇ 2-È© ¼¿·ê·¯ Áß°è½Ã½ºÅÛ¿¡¼­ non-transparent ¹æ½ÄÀÇ ¹«¼± Áß°è±â¸¦ ÀÌ¿ëÇÏ¿© ¼­ºñ½º ¿µ¿ªÀ» È®ÀåÇÒ ¶§, ½Ã½ºÅÛ Àü¼Û·ü ¹× ÇÏÇ⸵ũ Á¢±Ù¿µ¿ª(Access zone)°ú Á߰迵¿ª(Relay zone)¿¡ ´ëÇÑ ÃÖÀû ¹«¼±ÀÚ¿ø ÇÒ´ç¹æ¹ýÀ» ¿¬±¸ÇÑ´Ù. ºÐ¼®À» À§ÇØ ¸ÕÀú non-transparent ¹æ½ÄÀÇ MAC (Media Access Control) ÇÁ·¹ÀÓ ±¸Á¶¸¦ ¾Ë¾Æº¸°í, Á¢±Ù¿µ¿ª°ú Á߰迵¿ª¿¡¼­ ´Ü¸»°ú Áß°è±â µîÀÇ ³×Æ®¿öÅ© ±¸¼º¿ä¼Òµé¿¡ ´ëÇÑ °£¼·¿ä¼ÒµéÀ» Á¶»çÇÑ´Ù. ¸ðÀǽÇÇèÀ» ÅëÇÏ¿© ±âÁö±¹°ú Áß°è±âÀÇ °Å¸®¿¡ µû¶ó È®ÀåµÇ´Â 2-È© ¼¿ Ä¿¹ö¸®Áö Å©±â¿Í Àü¼Û·üÀ» ºÐ¼®ÇÏ°í, ºÐ¼®µÈ °á°ú¸¦ ÀÌ¿ëÇÏ¿© ÇÏÇ⸵ũ Á¢±Ù¿µ¿ª°ú Á߰迵¿ª¿¡ ´ëÇÑ ÃÖÀû ¹«¼±ÀÚ¿ø ÇÒ´ç·®À» Á¦½ÃÇÑ´Ù.
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(English Abstract)
In this paper, we evaluate the system throughput and the method of optimal wireless resource allocation for the access zone (AZ) and relay zone (RZ) in downlink when the cell coverage is extended using the non-transparent Relay Station (RS) in a 2-hop cellular relay system based on IEEE802.16j, which uses the OFDMA-TDD structure. For the analyses, we first introduce the MAC (Media Access Control) frame structure in the non-transparent mode, then we investigate the interfering elements in both AZ and RZ for the network devices such as the Mobile Station (MS) and RS. Through computer simulation, we analyze the cell coverage extension and system throughput in terms of the distance between Base Station (BS) and RS, then we present the amount of the optimal allocation of wireless resource for the AZ and RZ in downlink using our results.
Å°¿öµå(Keyword) IEEE802.16j   OFDMA-TDD   Multi-hop Relay   Coverage Extension   Resource Allocation IEEE 802.16j   OFDMA-TDD   ´ÙÁßÈ© Áß°è±â   Ä¿¹ö¸®Áö È®Àå   ÀÚ¿øÇÒ´ç  
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