2019³â Ãá°èÇмú´ëȸ
Current Result Document :
ÇѱÛÁ¦¸ñ(Korean Title) |
¹«¼±Àü·Â ¼¾¼ ³×Æ®¿öÅ©¸¦ À§ÇÑ Slotted ALOHA ±â¹ÝÀÇ ·£´ý Á¢¼Ó ÇÁ·ÎÅäÄÝ |
¿µ¹®Á¦¸ñ(English Title) |
Slotted ALOHA-based Random Access Protocol for Wireless-Powered Sensor Networks |
ÀúÀÚ(Author) |
°íÀ¯ÇÐ
±è³²È£
You-Hak Ko
Nam-Ho Kim
ÃÖÇöÈ£
Hyun-Ho Choi
|
¿ø¹®¼ö·Ïó(Citation) |
VOL 23 NO. 01 PP. 0603 ~ 0606 (2019. 05) |
Çѱ۳»¿ë (Korean Abstract) |
º» ³í¹®¿¡¼´Â ¹«¼±Àü·Â ¼¾¼ ³×Æ®¿öÅ©¿¡¼ ´Ù¼öÀÇ ¼¾¼ ³ëµå°¡ ÇϺ£½ºÆÃÇÑ ¿¡³ÊÁö¸¦ ÀÌ¿ëÇÏ¿© µ¥ÀÌÅ͸¦ ±âÁö±¹À¸·Î Àü¼ÛÇÏ°íÀÚ ÇÒ ¶§, slotted ALOHA ±â¹ÝÀÇ ·£´ý Á¢¼Ó ÇÁ·ÎÅäÄÝÀ» Á¦¾ÈÇÏ°í ä³Î ó¸®À²À» ÃÖ´ëÈÇÏ´Â ÃÖÀûÀÇ ·£´ý ½½·ÔÀÇ °³¼ö¸¦ µµÃâÇÑ´Ù. ¼öÇÐÀû ºÐ¼®À» ÅëÇÏ¿© ó¸®À²ÀÌ ·£´ý ½½·Ô °³¼ö¿¡ µû¶ó concavity¸¦ °¡ÁüÀ» ¹àÈ÷°í ÃÖÀûÀÇ ½½·Ô °³¼ö¸¦ ±¸ÇÑ´Ù. ½Ã¹Ä·¹À̼ÇÀ» ÅëÇÏ¿© °í·ÁÇÏ´Â ¹«¼±Àü·Â ¼¾¼ ³×Æ®¿öÅ©¿¡¼ Á¦¾ÈÇÏ´Â slotted ALOHA ±â¹ÝÀÇ ·£´ý Á¢¼Ó ÇÁ·ÎÅäÄÝÀÌ ÃÖÀû ·£´ý ½½·Ô °³¼ö¸¦ »ç¿ëÇÒ ¶§ ó¸®À²ÀÌ ÃÖ´ëȵÊÀ» È®ÀÎÇÏ¿´´Ù. |
¿µ¹®³»¿ë (English Abstract) |
In this paper, we propose a slotted-ALOHA-based random access protocol and derive the optimal number of random slots that maximize channel throughput when multiple energy harvesting sensor devices perform random access in wireless-powered sensor networks (WPSN). Throughput numerical analysis, we prove that the throughput has a concavity with respect to the number of random slots and obtain the optimal number of slots. Simulation results show that the throughput of the proposed slotted ALOHA-based random access protocol is maximize when the derived optimal number of slots is employed in the considered WPSN. |
Å°¿öµå(Keyword) |
±Ý¼Ó
°áÇÔ °Ë»ç
À§»ó °ËÃâ
Phase Detection
Wireless-powered sensor networks
Energy harvesting
Slotted ALOHA
Random access protocol
Optimization
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