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¹«¼± ·£¿¡ ´ëÇؼ­ ¹«¼± ·£ ¹æ½ÄÀÇ À̷аú ¿ø¸®, À¯¼± ·£°ú ¹«¼±·£ÀÇ Â÷ÀÌÁ¡, ¹«¼±·£ÀÇ ±¸¼º°ú È°¿ë»ç·Ê µî Àü¹ÝÀûÀÎ ³»¿ëÀ» ´ãÀº ÀÚ·áÀÔ´Ï´Ù. ÇÊ¿äÇϽŠºÐ¿¡°Ô ¿©·¯¸ð·Î µµ¿òÀÌ µÇ¸®¶ó »ý°¢µÇ¸ç, ¸ðµÎ ÁÁÀº °á°ú ¹ÞÀ¸½Ã±æ ¹Ù¶ø´Ï´Ù.

¹«¼±LAN(WirelessLAN)±â¼ú
¸ñÂ÷/Â÷·Ê

1. ¹«¼± LAN (Wireless LAN)

2. ¹«¼± LANÀÇ ¹æ½Ä

2 - 1 ¹«¼± LANÀÇ º¯Á¶ ¹æ½Ä

1) FSK ¹æ½Ä

2) PSK ¹æ½Ä

2 - 2 ¹«¼± ·£ÀÇ Á¾·ù
1) Àû¿Ü¼± ¹æ½Ä
2) Çù´ë¿ª(Narrow band) ¹æ½Ä

3) È®»ê´ë¿ª (Spread spectrum) ¹æ½Ä

3) - 1 È®»ê ´ë¿ª ±â¼ú (Spread Spectrum Technology)
3) - 2 Á÷Á¢È®»ê(Direct Sequence) ¹æ½Ä
3) - 3 ÁÖÆļö È£ÇÎ (Frequency Hopping) ¹æ½Ä
2 - 3 IEEE 802.11 Ç¥ÁؾÈ

3. À¯¼± LAN °ú ¹«¼± LAN ÀÇ Â÷ÀÌÁ¡

3 - 1 ¹«¼± LANÀÇ MAC °èÃþ

1) ¹«¼± LAN ÇÁ·ÎÅäÄÝ ¿ä±¸ »çÇ×

2) À¯¼± LAN°ú ¹«¼± LANÀÇ MAC

3) CSMA/CAÀÇ ¿ø¸®

4) Wireless LAN°ú ±âÁ¸ À¯¼± ·£ÀÇ Â÷ÀÌÁ¡

5) ¹«¼±LAN°ú À¯¼±LANÀÇ Àå´ÜÁ¡ ºñ±³

6) Wireless LAN System µµÀÔ ½Ã °í·Á»çÇ×

4. ¹«¼± LANÀÇ ±¸¼º

4 - 1 802.11ÀÇ ¹«¼± LAN ½Ã½ºÅÛ ±¸¼º ¹æ½Ä

1) Independent ¹æ½Ä (µ¶¸³ ¹æ½Ä)

2) Infrasturcture(±â¹Ý ±¸Á¶) ¹æ½Ä

4 - 2 ±¸¼ºµµ
1) standard ±¸¼º
2) ÄÉÀÌºí ¸ðµ©/ADSL ±¸¼º

3) - 1 : ±¸¼º¹æ¹ý - Ad-Hoc (Peer-to-Peer Network)

3) - 2 :±¸¼º¹æ¹ý - Infrastructure (Connection to wired Network)
3) - 3 : ±¸¼º¹æ¹ý - Roaming [Mobile computing Network]

4) wireless LANÀÇ ±¸¼º¿ä¼Ò

5. ¹«¼± LAN ÀÀ¿ë ºÐ¾ß

1) Çб³

2) ´ëÇüÀ¯ÅëÁ¡

3) °ñÇÁÀå

4) ±³À°Àå

5) ±º Á¤º¸È­ ½Ã¼³

6) Soho Network

6. ÃÖ±Ù ¹«¼± LANÀÇ °æÇâ

1) ¹«¼±Åë½Å, ¹«¼± ·£

2) ´ëÇа¡ ¹«¼±·£ ±¸Ãà È°±â

3) ¹«¼±·£ÀÇ ¿Ü»ê - ÅäÁ¾°£¿¡ ÀÚÁ¸½ÉÀ» °Ç ÇÑÆǽºÎ

4) ´«¿¡ ¶ç´Â Àåºñ.. ¹«¼± ·£ÀÇ µ¿Çâ

7. ¼º°ø »ç·Ê

1) Applebee·¹½ºÅä¶û

2) Operadora VIPs·¹½ºÅä¶û(Mexico)

3) Sankta Maria º´¿ø(½º¿þµ§ HeIsingborg)

4) ¾Æ½Ã¾Æ³ª Ç×°ø(Çѱ¹)

5) KLM Airlines(³×´ú¶õµå)

6) Autoliv°øÀå(½º¿þµ§)

7) LG¹éÈ­Á¡

8) GORO Yudhistira UtamaÇÒÀÎÁ¡

9) Army Air Force Exchange Service(AAFES, US)

10) Sydneyõ¹®´ë(¿À½ºÆ®·¹Àϸ®¾Æ)

11) ¿ö½ÌÅϱ¹¸³¹Ì¼ú°¶·¯¸®

º»¹®/³»¿ë

ºñ·Ï Ãʱ⿡´Â LAN ¹è¼±ÀÌ Èûµé°Å³ª, À̵¿ÀÌ ºó¹øÇÑ °÷, ¶Ç´Â À¯¼±À¸·Î ¼³Ä¡ÇÒ °æ¿ì À§ÇèÇϰųª ºñ¿ëÀÌ ºñ½Ñ °÷¿¡¸¸ ¹éº»À¸·Î À¯¼±À» µÎ°í ¼Ò·® ÀÌ¿ëµÇ°ÚÁö¸¸ Á¡Â÷ÀûÀ¸·Î À¯¼±·£ÀÌ Â÷ÁöÇß´ø ¸¹Àº ºÎºÐÀ» ´ë½ÅÇÏ°Ô µÉ °ÍÀÌ´Ù.¡¡

2. ¹«¼± LANÀÇ ¹æ½Ä

2 - 1 ¹«¼± LANÀÇ º¯Á¶ ¹æ½Ä

1) FSK ¹æ½Ä
¹«¼± LAN¿¡¼­ »ç¿ëµÇ´Â FSK(Frequency Shift Keying) º¯Á¶¹æ½ÄÀ¸·Î´Â 2GFSK(Gaussian FSK)³ª 4GFSK°¡ ÀÖÀ¸¸ç, ÀÌ º¯Á¶ ¹æ½ÄÀº FHSS(Frequency Hopping Spread Spectrum) ¹æ½Ä¿¡¼­ »ç¿ëµÇ°í ÀÖ´Ù.
2FSK´Â ÁÖÆļö°¡ ´Ù¸¥ 2Á¾·ùÀÇ ÀüÆÄ·Î 0°ú 1À» Ç¥ÇöÇÏÁö¸¸, 4FSK´Â ÁÖÆļö°¡ ´Ù¸¥ 4Á¾·ùÀÇ ÀüÆÄ·Î 00, 01, 10, 11À» Ç¥ÇöÇϸç Çѹø¿¡ 2ºñÆ®ÀÇ Á¤º¸·®À» °®´Â´Ù.
µðÁöÅÐ ½ÅÈ£¸¦ ±×´ë·Î ¾Æ³¯·Î±× ½ÅÈ£·Î º¯Á¶Çϸé ÁÖÆļö ´ë¿ªÀÌ ¹«ÇÑÈ÷ ³Ð¾îÁö¹Ç·Î ÇÊÅÍ¿¡ ½ÅÈ£¸¦ º¸³» ¹æÁöÇÒ ÇÊ¿ä°¡ ÀÖ´Ù. ÀÌ ÇÊÅÍÀÇ Çϳª·Î¼­ Gaussian Filter°¡ ÀÖÀ¸¸ç, GFSKÀÇ G´Â ÀÌ°ÍÀ» ÀǹÌÇÑ´Ù.

2) PSK ¹æ½Ä
PSK (Phase Shift Keying, À§»ó ÆíÀÌ º¯Á¶) ¹æ½Ä¿¡´Â BPSK(B´Â Binary·Î, 2À§»óÀ» ÀǹÌ)³ª QPSK(Q´Â Quadrature·Î, 4À§»óÀ» ÀǹÌ)°¡ »ç¿ëµÈ´Ù. À̰͵µ 2Á¾·ù(BPSK) ¶Ç´Â 4Á¾·ù(QPSK)ÀÇ À§»óÀÌ ¡¦(»ý·«)
Âü°í¹®Çå

http://www.netguru.co.kr/
http://www.rftnc.com/
http://www.interani.net/
http://www.samjung-corp.co.kr/
http://www.magicLAN.com/
http://www.sdt.co.kr/
http://www.daesin-it.net/
http://www.nascom.co.kr/
etc....


ÀÚ·áÁ¤º¸
ID : nfck******
Regist : 2013-02-16
Update : 2021-03-30
FileNo : 16091327

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¹«¼±   LAN   Wireless   ±â¼ú  


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