Bpsk Probability Of Error
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DSSS FHSS THSS See also Capacity-approaching codes Demodulation Line coding Modem PAM PCM PWM ΔΣM OFDM FDM Multiplex techniques v t e Phase-shift keying (PSK) is a digital modulation scheme
Bpsk Probability Of Error In Awgn
that conveys data by changing (modulating) the phase of a reference signal (the probability of error in qpsk carrier wave). The modulation is impressed by varying the sine and cosine inputs at a precise time. It is widely bit error probability for bpsk used for wireless LANs, RFID and Bluetooth communication. Any digital modulation scheme uses a finite number of distinct signals to represent digital data. PSK uses a finite number of phases, each assigned a
Bpsk Error Rate
unique pattern of binary digits. Usually, each phase encodes an equal number of bits. Each pattern of bits forms the symbol that is represented by the particular phase. The demodulator, which is designed specifically for the symbol-set used by the modulator, determines the phase of the received signal and maps it back to the symbol it represents, thus recovering the original data. This requires the receiver to
Bit Error Rate Of Qpsk
be able to compare the phase of the received signal to a reference signal — such a system is termed coherent (and referred to as CPSK). Alternatively, instead of operating with respect to a constant reference wave, the broadcast can operate with respect to itself. Changes in phase of a single broadcast waveform can be considered the significant items. In this system, the demodulator determines the changes in the phase of the received signal rather than the phase (relative to a reference wave) itself. Since this scheme depends on the difference between successive phases, it is termed differential phase-shift keying (DPSK). DPSK can be significantly simpler to implement than ordinary PSK, since there is no need for the demodulator to have a copy of the reference signal to determine the exact phase of the received signal (it is a non-coherent scheme).[1] In exchange, it produces more erroneous demodulation. Contents 1 Introduction 1.1 Definitions 2 Applications 3 Binary phase-shift keying (BPSK) 3.1 Implementation 3.2 Bit error rate 4 Quadrature phase-shift keying (QPSK) 4.1 Implementation 4.2 Bit error rate 4.3 Variants 4.3.1 Offset QPSK (OQPSK) 4.3.2 π /4–QPSK 4.3.3 SOQPSK 4.3.4 DPQPSK 5 Higher-order PSK 5.1 Bit error rate 6 Dif
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Probability Of Bit Error Formula
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