Wi-Fi Cơ bản : Tốc độ Wi-Fi (phần 2/2) | 11n guard interval คือ

Wi-Fi Cơ bản : Tốc độ Wi-Fi (phần 2/2)


นอกจากการดูบทความนี้แล้ว คุณยังสามารถดูข้อมูลที่เป็นประโยชน์อื่นๆ อีกมากมายที่เราให้ไว้ที่นี่: ดูเพิ่มเติม

WiFi Cơ bản : Tốc độ WiFi
Video này là phần tiếp theo của video trước, cũng về Tốc độ WiFi. Các bạn xem video trước ở link này nhé :
https://youtu.be/m7pc6asOJhY
Video về Công suất phát và RSSI : https://youtu.be/THQxDdbSGUc
Để trao đổi sâu hơn tham gia vào Group Cộng đồng công nghệ wifi. Link https://www.facebook.com/groups/vntik/
Tác giả Kai Nguyễn

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Wi-Fi Cơ bản : Tốc độ Wi-Fi (phần 2/2)

Subcarriers – OFDM 802 11n/ac


This video briefs on 802.11n/ac subcarriers
The topics include
OFDM
Subcarriers
Guard subcarriers
DC subcarriers
Pilot subcarriers
Data subcarriers
Symbols per second
Long Guard Interval
Short Guard Interval
802.11n
802.11ac
WIFI 4
WIFI 5

Subcarriers - OFDM 802 11n/ac

PLDT Home Fiber – Enable 5Ghz Wifi and LAN Ports


Device Model: AN550604FA
Software Version: RP2646

https://192.168.1.1/fh
default:
superadmin
Usename : [email protected]$a%d^mi(n
Password : s)f_U+h|g{[email protected]
default:
Usename : adminpldt
Password : z6dUABtl270qRxt7a2uGTiw
default:
Usename : admin
Password : 1234
Test Password: Qwertyuiop123456!

PLDT Home Fiber - Enable 5Ghz Wifi and LAN Ports

GAN’s Best Speedcube For Its Price // 11 Pro vs Duo vs M vs Air


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GAN's Best Speedcube For Its Price // 11 Pro vs Duo vs M vs Air

WiFi6 OFDMA – Subcarrier’lar – RU’lar – Guard Interval – 1024QAM – RU Scheduler


Daha önceki video’ya ek olarak şimdi de WiFi6 OFDMA’in nasıl çalıştığını daha detaylıca açıklıyoruz.
Hangi konu hangi dakikada? Hepsi aşağıda:
00:00 Başlangıç
00:37 Orthogonal Subcarrier’lar
01:48 11ac Subcarrier’lar ile 11ax’tekilerin farkları.
05:52 Sinyal İletim Karakteristikleri: 11n vs 11ac vs 11ax
07:48 Guard Interval ne demek?
12:30 Yeni Guard Inverval ve outdoor ortamlar.
15:00 11ax’teki Guard Interval
16:35 1024QAM
18:00 11ax’teki MUMIMO
19:25 11ax kanal yapısı ve Resource Unit’ler (RU)
24:45 Yeni MCS Rate’ler (OFDM vs OFDMA)
30:32 RU Allocation Algoritmasi (11ax RU Scheduler)
33:18 Uçtan uca tüm iletişim (Transmission Block Diagram)
35:05 Her RU’da farklı MCS rate ve farklı çıkış güçleri.
37:49 OFDMA ve client batarya süresi uzatımı avantajı.
39:05 Scheduler Özet.

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WiFi6 OFDMA - Subcarrier'lar - RU'lar - Guard Interval - 1024QAM - RU Scheduler

นอกจากการดูหัวข้อนี้แล้ว คุณยังสามารถเข้าถึงบทวิจารณ์ดีๆ อื่นๆ อีกมากมายได้ที่นี่: ดูบทความเพิ่มเติมในหมวดหมู่Dream interpretation

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