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ÀÌÀü°Ç
ÇѱÛÁ¦¸ñ(Korean Title)
°øÀ¯´ë¿ª¿¡¼ ¹«¼± LAN°úÀÇ °øÁ¸À» À§ÇÑ IEEE 802.16 WMANÀÇ MAC ÇÁ·ÎÅäÄÝ
¿µ¹®Á¦¸ñ(English Title)
IEEE 802.16 WMAN MAC Protocol for the Coexistence with WLAN in Shared Bands
ÀúÀÚ(Author)
ÇÑÈ£¼º
À̽ÂÇü
¹Ú¼ö¿ø
Çѱ⿵
°Çö±¸
À±¼ø¿µ
Ho Seong Han
Seung Hyong Rhee
Suwon Park
Kiyoung Han
Hyongoo Kang
Soonyoung Yoon
¿ø¹®¼ö·Ïó(Citation)
VOL 37 NO. 02 PP. 0142 ~ 0149 (2010. 04)
Çѱ۳»¿ë
(Korean Abstract)
º» ³í¹®¿¡¼´Â IEEE 802.11 WLAN°ú IEEE 802.16 WMAN ¹«¼± ³×Æ®¿öÅ©°¡ °°Àº °ø°£¿¡¼ °øÀ¯´ë¿ª(shared band)À» »ç¿ëÇÏ´Â »óȲ¿¡¼ °øÁ¸ÀÌ °¡´ÉÇϵµ·Ï 802.16 MAC ÇÁ·ÎÅäÄÝÀÇ ¼öÁ¤À» Á¦¾ÈÇÑ´Ù. Á¦¾ÈÇÏ´Â WMAN MAC ÇÁ·ÎÅäÄÝÀº WLANÀ» °í·ÁÇÏ¿© BS(Base Station)¿Í SS(Subscriber Station)°¡ Åë½ÅÇÒ ¶§ WLANÀÇ Åë½ÅÀ» Áö¿¬½ÃÄÑ Ãæµ¹À» ÇÇÇÏ´Â ¹æ½ÄÀ¸·Î µ¿ÀÛÇÑ´Ù. Áï, BS¿¡¼ SS·Î µ¥ÀÌÅ͸¦ Àü¼ÛÇÏ´Â ÇÏÇâ ¼ºê ÇÁ·¹ÀÓ(downlink subframe)¿¡¼´Â SS°¡ ÇÒ´ç¹ÞÀº ¹ö½ºÆ®(burst) ±¸°£¿¡¼ CTS(Clear To Send)¸¦ »ç¿ëÇÏ¿© WLANÀÇ Àü¼ÛÀ» ¸·°í, SS¿¡¼ BS·Î µ¥ÀÌÅ͸¦ Àü¼ÛÇÏ´Â »óÇâ ¼ºê ÇÁ·¹ÀÓ(uplink subframe)¿¡¼´Â BS°¡ CTS¸¦ »ç¿ëÇÏ¿© WLANÀÇ Åë½ÅÀ» Áö¿¬½ÃŲ´Ù. Á¦¾ÈÇÏ´Â ÇÁ·ÎÅäÄÝÀº WLAN°úÀÇ Ãæµ¹À» ¹æÁöÇÏ¿© Àü¼ÛÈ¿À²À» ³ôÀÏ ¼ö ÀÖÀ¸¸ç, À̸¦ ½Ã¹Ä·¹À̼ǿ¡ ÀÇÇØ ºÐ¼®ÇÑ´Ù.
¿µ¹®³»¿ë
(English Abstract)
In this paper, we propose to modify the IEEE 802.16 MAC protocol in order to allow the coexistence of IEEE 802.11 and IEEE 802.16 wireless networks in shared bands. Our suggested protocol enables 802.16 WMAN to control WLAN devices for the coexistence. That is, in the downlink subframes(BS to SS), SS(Subscriber Station) prohibits WLAN to transmit by using CTS(Clear to Send) in order to protect it's burst. In the uplink subframes(SS to BS), on the other hand, BS(Base Station) sends CTS to block WLAN's communications. Our proposals enables the coexistence between WLAN and WMAN, and simulation results show that our protocols enhance the throughput of the entire system.
Å°¿öµå(Keyword)
°øÁ¸
WLAN
WMAN
°£¼·
MAC
Coexistence
interference
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