Digital Modulation Techniques in Mobile Communications

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QPSK vs. OQPSKFahredd'n Sadikoglu 22
QPSK & OQPSK0 1 1 1 0 0 0 1(-1, 1)(a q, a i)(1, 1)cos ωts<strong>in</strong>ωt(-1, -1)(1, -1)Fahredd'n Sadikoglu 23
Page 1 and 2: Digital Modulation Techniques inMob
Page 3 and 4: Modulation Techniques• Modulation
Page 5 and 6: Amplitude Shift Keying (ASK)- Pulse
Page 7 and 8: Phase Shift Keying (PSK)- Binary Ph
Page 9 and 10: Multi-PhaseBinary Phase ShiftKeying
Page 11 and 12: Quadrature Phase-Shift Keying(QPSK)
Page 13 and 14: QPSKModeled as two BPSK systems inp
Page 15 and 16: QPSK TYPESFahredd'n Sadikoglu 15
Page 17 and 18: Fahredd'n Sadikoglu 17
Page 19 and 20: OQPSKBit transitions occur every T
Page 21: OPSKFahredd'n Sadikoglu 21
Page 25 and 26: π/4-QPSKDual constellation diagram
Page 27 and 28: Minimum Shift Keying (MSK)• It is
Page 29 and 30: MSKMSK uses changes in phase to rep
Page 31 and 32: ● If it assumed that h = 1/2, the
Page 33 and 34: MSK better than QPSKEven though the
Page 35 and 36: MSKFahredd'n Sadikoglu 35
Page 37 and 38: As can be seen from above, GMSKs po
Page 43 and 44: The figure shows the 16-bit NRZ (No
Page 45 and 46: • The figure shows the MSK and GM
Page 47 and 48: (5)Frequency offset:* This refers t
Page 49 and 50: How to implement a GMSK modulator?F
Page 51 and 52: GSM Modulation SpecificationsIn the

Digital Modulation Techniques in Mobile Communications

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