802.11bguardinterval

ShortGI(GuardInterval)是802.11n針對802.11a/g所做的改進。射頻芯片在使用OFDM調制方式發送數據時，整個幀是被劃分成不同的數據塊進行發送的，爲了數據傳輸的可靠 ...,^Jumpupto:Thedefaultguardintervalis0.8microseconds.However,802.11axextendedthemaximumavailableguardintervalto3.2microseconds,in ...,ThestandardsymbolguardintervalusedinIEEE802.11OFDMis0.8μs.Toincreasedatarate,802.11naddedoptionalsupportfor...

參考資訊如下
WiFi測試小知識之十二：長GI與短GI有什麽區别和影響

Short GI(Guard Interval)是802.11n針對802.11a/g所做的改進。射頻芯片在使用OFDM調制方式發送數據時，整個幀是被劃分成不同的數據塊進行發送的，爲了數據傳輸的可靠 ...

IEEE 802.11b

^ Jump up to: The default guard interval is 0.8 microseconds. However, 802.11ax extended the maximum available guard interval to 3.2 microseconds, in ...

Guard interval

The standard symbol guard interval used in IEEE 802.11 OFDM is 0.8 μs. To increase data rate, 802.11n added optional support for a 0.4 μs guard interval. This ...

guard-interval-mode

2021年2月8日 — The guard-interval-mode command configures the guard interval (GI) mode. ... The GI for 802.11a/b/g is fixed at 800 ns. The GI for 802.11n and ...

Radio

The guard interval is the dead time, in nanoseconds, between OFDM symbols. The guard interval prevents Inter-Symbol and Inter-Carrier Interference (ISI, ICI).

Wi-Fi 6 vs. Wi

2021年5月25日 — 802.11ac had two Guard Interval (GI) options – long GI (0.8µs) and short GI (0.4µs). 802.11ax has three types of GI – the normal GI (0.8 µs) ...

OFDM:Advanced

Specifies the size of the guard interval of OFDM symbols. For 802.11ax TB PPDU and 802.11be TB PPDU, you must always configure this property. For other signals, ...

Short Guard Interval and multipath effect FAQ

Guard Interval is intended to avoid signal loss from multipath effect. In wireless transmission, RF signals reach the receiving antenna by two or more paths, if ...

Short Guard Interval and multipath effect FAQ