ofdmguardinterval

6:GuardintervalinanOFDMsignal.,2014年3月31日—...OFDM符元前加上一小段的防護區間(GuardInterval,GI)。每一個要傳送出去的OFDM符元，並不是連續傳送的，是中間隔了一小段時間後再讓下一個OFDM符元 ...,ThestandardsymbolguardintervalusedinIEEE802.11OFDMis0.8μs.Toincreasedatarate,802.11naddedoptionalsupportfora0.4μsguardinterval.This ...,EachgroupbandcontainsfiveOFDMbands,withguardspacingΔfG=mΔfsc(misapositi...

參考資訊如下
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6: Guard interval in an OFDM signal.

FFTIFFT演算架構撐腰OFDM提高LTE頻譜使用效率

2014年3月31日 — ... OFDM符元前加上一小段的防護區間(Guard Interval, GI)。每一個要傳送出去的OFDM符元，並不是連續傳送的，是中間隔了一小段時間後再讓下一個OFDM符元 ...

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

Each group band contains five OFDM bands, with guard spacing ΔfG = mΔfsc (m is a positive integer), where Δfsc is the subcarrier spacing. Because the central ...

OFDM Frame and the Guard Interval

The Guard Interval is the ratio of the Cyclic Prefix CP1) Contention period, or 2) Cyclic prefix time to the inverse FFTFast Fourier Transform: A mathematical ...

Understanding OFDM - Part 5

2017年5月15日 — The use of a guard interval is to protect the majority of the OFDM symbols from corruption due to inter-symbol interference (ISI) caused by ...

Variable guard interval for OFDM based WLANs

由 SS Das 著作 · 2005 · 被引用 12 次 — The dynamic selection of guard interval in orthogonal frequency division multiplexing (OFDM) based wireless local area network (WLAN) systems is described ...

What is the use of guard intervals in an OFDM system?

2017年3月5日 — Guard intervals in OFDM are not used to achieve separation between subcarriers. They are used to prevent co-channel interference and exist at ...

循環前綴和保護間隔（cyclic prefix and Guard interval）

2019年6月22日 — 在保護區間未放訊號的OFDM系統稱ZP-OFDM（zero padding）。ZP-OFDM有比較低的傳輸功率，但在接收端接收於zero padding區域訊號時，會破壞載波的正交性造成 ...