[ Ȱ ]
2 ī ͳ
(AD-HOC ̿)
ؼ Ǿ ͳ ʿ Ȳ Ǿϴ. 15m Ͽ Ͽµ 뿡 ִ ̿ ̻ ߽ϴ. ̻ Ǿư ͳȯ ϴ. ̻ ϰ ġϱ Ȱ Ǿ ȯ̶ ȭƮ ̿ ƴ ܺη ־ ̰͵ ȵ Ȳ. Ͽϴ.
ϰ Ȳ Ȳ ƴѵ ϰ ΰ ϰ ־ κ Ʈ . ΰ 亯 ־ ϴ ߰ ī ΰ ؼ AD-HOC Ͽ ȯ Ͽ ҽϴ. Ȳ Ե鿡 Ǿ ϸ ϰڽϴ.
ݽ MW-1000USB
ǰ MW-1000USB ǰ 2 Դϴ. IEEE 802.11b ȣȯǰ KT ݽ̿ ǰ KT ݽ ڿ ī带 ϰ ־ Ϳ ־ϴ.
ΰ ׳ ׳ ,,, 90 ̷ ϼ ֽϴ. USB̺ 1.5m̸ Ǿ и ʽϴ.
ũ ÷ Դϴ. ֵ ִ ƮȦ ֽϴ. ̲ ϱ ִ ΰ ŷ ϸ ǰ ִ 簡 ֽϴ.
ǰ ׳ stacked dipole ׳ ε մϴ. ׳ ־ Ʒ ÷ մϴ. ѹ о ô ͵ ǵ մϴ.
׳ Ư
ҷ ȯ ߿ ϳ ׳ Դϴ. ̷ ׳ Ư ľϴ ȯ ִ Դϴ. ⼭ ̷ 밡 մϴ.
̳ ü ָ , ƮƮ ġƮ κи ָ ׳ ⼺(/ ) ⼺(ƮƮ ġƮ ) ׳ ȣ Ǵ ̿ ° ϴ. κ ׳ Ư ٸ ۼŵǴ ȣ Ⱑ ϴ. ̷ ׳(Antenna Pattern)̶ մϴ. ⼺(Uni-directional)̳ ⼺(Omni-directional)̳İ ׳ Դϴ. ̿ ⼺ ׳ ȣ ȣ ۼ ʴٸ ȣ DZ ƽϴ.
ϳ Ư ׳ؼ(Antenna Polarization)Դϴ. ڱ ε İ ϴ Ư Դϴ. Ϲݻڴ Ȯ ؼ ؼ ʿ ϴ. ּ ؼ (Vertical) (horizontal) ˾ƾ߸ մϴ. Ư ۽ſ ׳ ſ ׳ ؼ ġ ȣ 90%̻ ݰ ֱ Դϴ. ó ׳ ׳ Ҵٸ ڽ ׳ ó ϰ մϴ.
׳ װ ¶ ϰ ؼ Ư ֽϴ. ׳ ̵Űų AP 籸Ͽ ȯ Űų Ȯϰų ֽϴ. Ʈ ణ ׳ ִ , AP ׳ 1¥ ׳ ǰٴ 䳢 ó 2 ׳ AP ϴ ؼ ϴ Դϴ.
ܿ ׳ ϰų ȣ ⸦ Ÿ ̵(gain) ս(loss) ú(dB)̶ ǥõǴµ ̰ ׳ ִ ȣ ⸦ մϴ. ̰ ׳ Էµ ° µǴ ʰ踦 ǹϸ( ڼ մϴ). ٸ ú µǴ ȣ Ⱑ ݵ º ƴ ϼ.( º 2:1 ú 3dB, 100:1϶ 20dB ̶ Դϴ.) ׳ ȣ ϱ ˸ ȯ شٰ ؾ մϴ. Ʒ ǥ ׳ dipole׳ ̵ 6dB̰ parabolic׳ ְ 25dB̾ parabolic׳ ȣ ξ ָ parabolic dipole ȣ ϰ ˴ϴ. ؼ ̵ ȣü ġ ̿ؾ ϸ ̷ ſ ̰ ñκ 㰡 ƾ 쵵 Ƿ Ϲ ȣ ڳ ִ ƴմϴ.
ó:()Ÿ Ʈ
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Ϲ ˷ Ѵ Ǿ ΰ ī带 ϴ ϴ ϴ Դϴ. ΰ ī ϳ ٸ Ǿ ͳݸ ϴ . win2000 win98 ġ δ Ǿ ִµ win2000 ΰ ī ް win2000 ִ Ͽϴ.
ΰ win2000 뿡 üũ Դϴ.
ǻ win2000 ġ Ǿ PC1̶ Īϸ win98 ġ Ǿ PC2 ϰڽϴ.
ī ġ κ USB ̹ ġϰ Ǿ USB Ʈ ġ Դϴ. ġ Ʒ ǥ κ Ÿ Ÿϴ. ŬϿ ȰŰ â Ÿϴ.
ִ Ʈũ, SSID, WEP, ä Դϴ. AP ΰ ī ϱ ߿Ѻκ ƮũĿ Ad-hoc Դϴ. SSID, Ad-hocä κ Ǿ ν ΰ մϴ. Ʈũ, SSID, WEP, äο ˾ ڽϴ.
Infrastructure(Acccess Point Network) Ad-Hoc(Peer-to-Peer Network)?
ī AP ִ ۸(Operation Mode) մϴ.
AP : Ad-Hoc(Ȥ Peer-to-Peer Network)
"Ȥ"̶ ϰ. ϸ Ʈũ ۰ ġ մϴ. ũž PC ǻ͵ ī带 ִ ̸ ϰ մϴ. ڸ 1:1 ũν ̺ ϴ Ͱ ϰ. AP ϴ ٴ ŷڼ̳ ȼ ϴ.
AP ִ : Infrastructure(Access Point Network)
"Ʈ" ϰ. ϸ Ʈũ ս մϴ. ī带 PC ǻ͵ Access Point Ͽ ս Ʈũ Ǿ ͳ ս մϴ. Access Point ֽϴ. ܼ ϴ ⺻ Access Point (Access point+ͳ ) ֽϴ. Ʒ Դϴ. ڸ AP 꿡 شմϴ. Ad-Hoc ٴ ŷڼ ȼ ϴ.
SSID?
Ʈũ ȣ ִ ̺ DZ 꿡 ϸ Ǿ ü ϱ ٸ Ʈũ ϴ ȥ Ұ ϴ. ̷ ذϱ ID(ĺȣ) Ͽ Ͽ ȣ ID Խ ϰ ˴ϴ. ̷ ID SSID θϴ. ȿ ΰ̻ Ʈũ 簡ϸ ̶ SSID AP ٸ SSID Էϸ ڴ ī忡 ԷµǴ SSID شƮũ ֽϴ.
WEP
WEP ϴ Ͱ ȣ ϱ Ͽ Wi-Fi ǥؿ ǵǾ ִ Դϴ. Ϲ ϴ ϴ Ͱ , ȣ , 쿡 Ư Ʈ Ǵ ü Ѱ Ƿ ̷ ȿ ʽϴ. WEP ۵Ǵ ȣȭν Ʈ å Ǵ Ͱ ȣ ϴ ߱Ѵ. ȣȭ Ŭ̾Ʈ AP ũ ȣϸ, ϴ ȣ Ȯ ϱ ȣ ȣ, ȣȭ, VPN, ٸ Ϲ ֽϴ.
ä(Channel)̶?
츮 802.11bǥ ä 1 13((2412~2472Mhz, ä 5Mhz ) մϴ. ä TV ä Ͻø ˴ϴ. ۱ ÷ ش ä ߾ ϴ ó AP Ȥ Ϸ ä ž մϴ.
Ʈũ 2 ̻ Ʈũ Ѵٸ ä µ ̶ AP 4ä μž ȭ ֽϴ. ù° AP 1 ä ִٸ 4ä ξ(2,3,4,5ä), ° AP 6 ä ž ϰ. ° AP 11 ä ž մϴ. ä ī峪 AP ش ä Է Ǿ մϴ.
ó:()Ÿ Ʈ,
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PC2
PC2 ȭ Դϴ.
Ʈũ Ad-hoc, SSID rock, ä 1 Ͽϴ. WEP ʾҴµ ȣȭ ϶ ؼ Դϴ.
TCP/IP κ κ IPڵҴ ް Ǿִµ ϸ ʾҽϴ. IP, ݸũ, Ʈ, DNS Ͽϴ.
ġ ϴ ̿ ΰ ϰ ־ ȵǰų Ȥ , ӵ Ʈ غ մϴ. Ʈ Ʈ ȯ濡 ˾ƺ.
32 Ʈ Ǿġ ҽϴ. ̴ ΰ θ ְ Ǿ Ÿ 6.5m Դϴ.
Ʈ
Ʈ ϴ ȯ濡 Ʈ 1 ϰ
̳ ֹ ̻ ȯ濡 PC2 1 ī Ÿ 1m 2 Īϸ Ʈ մϴ.
1 1 2 ī ġ ġ Դϴ. PC1 ġ ḭ̄ PC2 ġ īԴϴ.
2 PC2 1 ī Ÿ 1M ϰ Ʈ ϴ Դϴ.
PC
ռ Ǿ ü Դϴ. PC2 30mbps ĿϴͶ ū ȵɰŶ մϴ.
PC 1
MAINBOARD |
K7S5A(SIS735) |
|
CPU |
DURON 1G@1.33G |
|
RAM |
KINGMAX DDR333 256M |
|
VGA |
ATI RADEON 7500 |
|
LANCARD |
REALTEK 8139 |
HDD |
MAXTOR DM +40 (7200RPM, UDMA66) |
ODD |
SAMSUNG SM-348B 48X24X48X16 |
POWER |
SEASONIC
SR- 250FS |
OS |
WINDOWS 2000 PRO SP3 |
PC 2
MAINBOARD |
MIS-5169(ALI) |
|
CPU |
AMD K6-2 350 |
|
RAM |
SDRAM 96M |
|
VGA |
VOODOO BANSHEE 16M |
|
LANCARD |
REALTEK 8139 |
HDD |
FUJITS (5400RPM, UDMA33) |
ODD |
SAMSUNG 8X CDROM |
POWER |
ATX 200W |
OS |
WINDOWS 98SE |
ӵ PC1 SERV-U FTP SERVER ġ PC2 FTP ε, ٿε ӵ մϴ. ӵ ִ߳ Kbench ٿε ѱ ʰ ͳ ǰƮ ӵ մϴ.
1 Ʈ
汸 ϴ ȯ濡 Ʈ
[ FTP ε Ʈ ]
[ FTP ٿε Ʈ ]
[ ʰ ͳ ǰƮ ]
[ Kbench ٿε ]
2 Ʈ
PC2 1 ī Ÿ 1m Ʈ
[ FTP ε Ʈ ]
[ FTP ٿε Ʈ ]
[ ʰ ͳ ǰƮ ]
[ Kbench ٿε ]
Ʈ
̴ Ѵٰ ϴµ
ͳ 1G Ʈȭ ε غ Ǿϴ.
AC3 Ҵµ Ǿ ˻ϸ ȭ Ǵ Ͽϴ.
ġ ǥ ҽϴ.
|
1 |
2 |
FTP
ε |
624.22 KB/s |
627.27 KB/s |
FTP
ٿε |
527.91 KB/s |
525.82 KB/s |
ʰ
ͳ ǰƮ |
627 KB/s |
632 KB/s |
Kbench
ٿε |
568 KB/s |
566 KB/s |
1 - 2 ؾϴ ȯ
2 - ƹ ֹ 1M Ÿ ̻ ȯ
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ġ ø ū ̰ ϴ. ġ ǥ ְڴٰ Ͽ ǥġ Դϴ. ӵ ̴ ϴ. IEEE 802.11b ǰ 11Mbps ϳ ӵ 4-5Mbps մϴ. Ʈ 4-5Mbps ӵ ų ϴ ΰ ִ ȯ濡 ƹ ֹ 1M Ÿ ̻ ȯ ӵ ־ϴ.
ο Ͽ ȳ´ٴ ҽϴ. ü ȵǸ ¼ ϴ Ͽ ǰ ִ ִ ʾҳ Ǿ ϰ ֽϴ.
4-5Mbps ӵε 100Mbps 鿩 ټ ϴ.
Ϲݱ 54Mbps 802.11g ǰ õȴٰ ϰ 100Mbps ǰ δٰϴ Ȳ ϴ.
ذ е ѹ ص帳ϴ.
Ŀ ߴ ߴ Դϴ. ǥ ϳ...... ñϽ ̳ ȯ濡 ִ ߰ Ʈ Ͻø ô ּ. 亯 ص帮ڽϴ.^^
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