Implementation- QPSK

1. Code for the Quadrature Phase Shift Keying(QPSK)  modulator and demodulator
2. Modulator blocks are:
     a. Serial to parallel converter
     b. RZ to NRZ converter
     c. Balanced modulator
     d. Oscillator
3. QPSK demodulator blocks are:
     a. Balance demodulator
     b. Low pass filter
     c. Sampled and hold data
     d. NRZ converter
     e. Multiplexer

Implementation- BPSK

1.Code for the Binary Phase Shift Keying(BPSK)  modulator and demodulator
2. Modulator blocks are
     a. Random data generator
     b. Non return to zero
     c. Mixer
     d. Amplifier
3. BPSK demodulator blocks are
    a. Low pass filter
    b. Analog to digital converter
    c. Demodulated out put

Existing solution

In digital data transmission techniques from source to destination, some shift keying used are:
1.Amplitude shift keying
2.Frequency shift keying
3.Phase shift keying
4.Binary phase shift keying
5.Quadrature shift keying

Background

Now a days  we can’t imagine the world around us with out communication Growth in wireless technology.The reason is the fabrication of high density,lowpower,lownoise,smallsize and reliable digital and RFcommunications
Constraints faced are:
     1.Bit-Error rate
     2.Bandwidth
     3.Frequency spectrum
     4.Video conference,3G videos are corrupted 

Introduction

Digital modulation is a process that impresses a digital symbol on to a signal suitable for transmission on a wired or wireless medium in order to receive that signal at receiving end correctly without any loss of information
Design of high performance BPSK and QPSK modulator and demodulator targeted to  FPGA.