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Main Task:
OFDMA signal transmitting without pilot signals
Proposed Method:
Frequency Bank Signal (FBS)
OFDMA problems : Multipath Propagation, Doppler shift and delays influences, Pilot signals necessity, Orthogonality disturbing.
Combining OFDMA and CDMA principles names Frequency Bank Signal (FBS), which allows above problems solving without additional signals, like a pilots or test for equalizing process.
There are three sources of FBS method: OFDM method, Phase distortions compensation in PAL TV and Walsh function.
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