In telecommunications, guard intervals are used to ensure that distinct transmissions do not interfere with one another, or otherwise cause overlapping transmissions. These transmissions may belong to different users (as in TDMA) or to the same user (as in OFDM).
The purpose of the guard interval is to introduce immunity to propagation delays, echoes and reflections, to which digital data is normally very sensitive.
In telecommunications, guardintervals are used to ensure that distinct transmissions do not interfere with one another, or otherwise cause overlapping...
program execution Guard (information security), a device for controlling communication between computer networks Guardinterval, intervals in transmission...
needed] The OFDM guardinterval for TM I is 0.246 ms, which means that the overall OFDM symbol duration is 1.246 ms. The guardinterval duration also determines...
state) or another purpose. It may be considered as a specific case of a guardinterval. Ethernet devices must allow a minimum idle period between transmission...
(TDS) OFDM technology with a pseudo-random signal frame to serve as the guardinterval (GI) of the OFDM block and the training symbol. The DTMB standard has...
prefix samples, but the cyclic prefix serves two purposes: It provides a guardinterval to eliminate intersymbol interference from the previous symbol. It repeats...
determined by the transmission parameters such as bandwidth, code-rate, guardinterval, etc. Typically, among the 13 segments, the center segment is used for...
(which cause frequencies offsets, spread: Doppler spread) and OFDM guardinterval which determine robustness against multipath propagation (which cause...
Multiplexing). While a guardinterval is required in ordinary OFDM systems, the Wavelet OFDM system eliminates the guardinterval and increases the occupancy...
of wire, G.hn uses different OFDM parameters (OFDM symbol duration, guardinterval duration) for each media. DSL modems also use orthogonal frequency-division...
bit loading. Inter-symbol interference is avoided by introducing a guardinterval between the symbols called a cyclic prefix. CDMA uses the rake receiver...
non-contiguous subcarriers distributed over a wide frequency band can be used. A guardinterval, such as a cyclic prefix (CP), is added to the baseband CI-OFDM signal...
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