TDMA, FDMA, and CDMA

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Front-end filtering Demodulation Sampling Threshold detection TDMA: a case study 004 0.006 0.008 0.01 0.012 0.014 0.016 Time [s] 1 2 3 4 5 6 7 8 9 10 x 10 Received waveform Received binary antipodal signal 16
Frequency requency Division ivision Multiple ultiple Access ccess (FDMA) Each user transmits with no limitations in time, but using only a portion of the whole available frequency bandwidth. Different users are separated in the frequency domain. 17
Page 1 and 2: TDMA, FDMA, and CDMA Telecomunicazi
Page 3 and 4: TDMA : Frame Structure TDMA require
Page 5 and 6: TDMA : guard times Since there are
Page 7 and 8: S Digital signal TDMA: reference tr
Page 9 and 10: () j s () t 1 0.8 0.6 0.4 0.2 0 -0.
Page 11 and 12: from the buffer () () t j sC Code g
Page 13 and 14: from the TDMA coder 1 0.8 0.6 0.4 0
Page 15: 100 50 0 -50 -100 () () t j sTX 0 0
Page 19 and 20: S Digital signal FDMA: reference sc
Page 21 and 22: s FDMA: a case study () j () () j
Page 23 and 24: TDMA + FDMA FDMA TDMA + FDMA 23
Page 25 and 26: Code ode Division ivision Multiple
Page 27 and 28: CDMA schemes Direct Sequence CDMA (
Page 29 and 30: Direct Sequence Spread Spectrum Ori
Page 31 and 32: Received signal signal 1 Direct Seq
Page 33 and 34: Frequency Hopping Spread Spectrum T
Page 35 and 36: Frequency Hopping Spread Spectrum C
Page 37 and 38: CDMA : the near-far problem If all
Page 39 and 40: DS-CDMA: reference scheme Front-End
Page 41 and 42: s DS-CDMA: a case study s Digital b

TDMA, FDMA, and CDMA

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