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Ç¥ÁعøÈ£ TTAK.IR-S.2131/R1 ±¸Ç¥ÁعøÈ£
Á¦°³Á¤ÀÏ 2022-06-29 ÃÑÆäÀÌÁö 18
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¿µ¹®Ç¥Áظí Method for the Determination of Performance Objectives for Satellite Hypothetical Reference Digital Paths using Adaptive Coding and Modulation
Çѱ۳»¿ë¿ä¾à °íÁÖÆļö ´ë¿ªÀ» »ç¿ëÇÏ´Â µðÁöÅÐÀ§¼ºÅë½Å½Ã½ºÅÛ¿¡¼­´Â °­¿ì°¨¼è µîÀÇ Ã¤³Î ¿­È­¸¦ º¸»ó Çϸ鼭, ¿À·ù¼º´ÉÀ» À¯ÁöÇϱâ À§ÇÏ¿© ACM ¹æ½ÄÀ» »ç¿ëÇÏ´Â °ÍÀÌ ÇʼöÀûÀÌ´Ù. ÀÌ Ç¥ÁØ¿¡ ¼­´Â µðÁöÅÐ À§¼ºÅë½Å½Ã½ºÅÛ¿¡¼­ ¿ä±¸µÇ´Â ¼º´É¸ñÇ¥¿¡ ´ëÇÑ ¹è°æÀ» Á¦½ÃÇÏ°í, ACM ¹æ½Ä À» »ç¿ëÇÏ´Â µðÁöÅÐÀ§¼ºÅë½Å½Ã½ºÅÛ¿¡¼­ »ç¿ëÇÒ ¼ö ÀÖ´Â ¼º´É ¸ñÇ¥·Î ÆÐŶ¿À·ùÀ²(packet error rate; PER) ¶Ç´Â ½ÅÈ£´ëÀâÀ½ºñÀÇ ÇÔ¼ö·Î Ç¥ÇöµÇ´Â ½ºÆåÆ®·³È¿À²À» Á¦½ÃÇÑ´Ù. ºÎ¼Ó¼­ ¿¡¼­´Â °íÁ¤ºñÆ®À² Àü¼Û ¼­ºñ½º¿¡ ´ëÇÑ ¼º´É¸ñÇ¥¸¦ Á¦½ÃÇÑ´Ù. ¶Ç, µ¿Àû °­¿ì°¨¼è Ư¼º ½Ç Çè°á°ú¸¦ Á¦½ÃÇÏ°í, °­¿ì °¨¼è ±Øº¹À» À§ÇÏ¿© ACM ¹æ½ÄÀ» »ç¿ëÇÏ´Â À§¼º½Ã½ºÅÛ¿¡ Àû¿ë °¡´ÉÇÑ ¼º´É ÆĶó¹ÌÅ͸¦ Á¦½ÃÇÑ´Ù.
¿µ¹®³»¿ë¿ä¾à Satellite systems operating in high frequency bands are required to employ an efficient means to countermeasure degraded propagation due to rain fading. Adoption of ACM allows to maintain the error performance in spite of degraded propagation but at lower throughput rates. The standard provides a method for determining the performance objectives for satellite communication systems using ACM, in terms of either the packet error ratio (PER) or the spectral efficiency (bit/s/Hz) as a function of carrier to noise ratio (C/N).
±¹Á¦Ç¥ÁØ ITU-R S.2131
°ü·ÃÆÄÀÏ TTAK_[1].IR-S.2131_R1.pdf TTAK_[1].IR-S.2131_R1.pdf            

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