shortgi20

shortgi是一種代碼，可以縮短兩個數據傳輸間隔，用於提高效率，802.11a/b/g傳輸間隔是800ns，shortgi將間隔縮短至400ns，可以將效率提高10%左右。,2024年1月5日—SHORT-GI-20,ShortGI(guardinterval)for20MHz.short_gi_40,boolean,1,SHORT-GI-40,ShortGIfor40MHz.tx_stbc,integer,1,TX-STBC ...,ht_capab=[HT40+][SHORT-GI-20][SHORT-GI-.40][LDPC][TX-STBC][RX-STBC1][DSSS_CCK-.40][MAX-AMSDU-7935]ieee80211ac=1vht_capab=[M...

參考資訊如下
Short GI

short gi是一種代碼，可以縮短兩個數據傳輸間隔，用於提高效率，802.11a/b/g傳輸間隔是800ns，short gi將間隔縮短至400ns，可以將效率提高10%左右。

Wi

2024年1月5日 — SHORT-GI-20, Short GI (guard interval) for 20 MHz. short_gi_40, boolean, 1, SHORT-GI-40, Short GI for 40 MHz. tx_stbc, integer, 1, TX-STBC ...

QWA

ht_capab=[HT40+][SHORT-GI-20][SHORT-GI-. 40][LDPC][TX-STBC][RX-STBC1][DSSS_CCK-. 40][MAX-AMSDU-7935] ieee80211ac=1 vht_capab=[MAX-MPDU-. 11454][RXLDPC][VHT160 ...

Solved: AP6330 does not support SHORT-GI

But failed to get AP6330 working on SHORT-GI, both 2.4G and 5G only get 65Mbps, beacon with no short-GI set. seems that AP6330 doesn't support SHORT-GI.

Wifi配置文件hostapd.conf解析（转载） 转载

2022年3月6日 — ... GI-20][SHORT-GI-40] # 个人理解，如果不上天馈系统的话可以启用[SHORT-GI-20][SHORT-GI-40]，前提是硬件支持。 #ht_capab=[LDPC][HT40-][HT40+][SHORT-GI ...

hostapd.conf

... 20 #basic_rates=10 20 55 110 #basic_rates=60 120 240 # Short Preamble # This ... GI for 20 MHz: [SHORT-GI-20] (disabled if not set) # Short GI for 40 MHz ...

Short Guard Interval and multipath effect FAQ

If you are using 802.11n or 802.11ac only, you can enable short GI. In another word, when using mixed mode, please disable the short GI, which may cause issues.

hroughput vs. MCS; Short GI and 20 MHz bandwidth.

Objectives: In this paper, the performance parameters in the WLANs are discussed and we evaluate the superior performance of the new IEEE 802.11ac standard ...

Configuring short GI

802.11n supports a short GI of 400 ns, which provides a 10% increase in data rate. Both the 20 MHz and 40 MHz bandwidth modes support short GI. To configure ...

IEEE 802.11n

使用56個（頻寬20 MHz）或114個（頻寬40 MHz）副載波. 限制 編輯. 2.4GHz和5GHz ... 編位元速率, 空間流數, mode, 速率 (Mbit/s). 540MHz, 1080MHz. Long GI, Short GI, Long ...