2021年11月9日 — The GI should be 2-4 times higher than the delay spread, so in most environments, delay spread should not exceed 200ns. Most offices and homes ...
2016年8月25日 — The Guard Interval is the ratio of the Cyclic Prefix CP time to the inverse FFT time T(IFFT). The guard interval is used to eliminate inter- ...
The Guard Interval time period T(GI) is specified as a fraction (percentage) of the inverse FFT time period T(IFFT). For 802.11a, the only selection is a Guard ...