qpsk matlab simulink receiver and transmitter. Quadrature Phase shift keying

qpsk transmitter a receiver, in design to simulink with AWGN,noise.

a coherent optical receiver for demodulating optical quadrature phase-shift keying (QPSK) signals. ... Third, this scheme is applicable to multilevel modulation formats such as M-array PSK and quadrature amplitude modulation (QAM). First contribution

基于WiFi 802.11a协议的无线通信系统的开发 端到端的802.11a的物理层，自适应调制，前向纠错码，ofdm传输，高斯白信道仿真 Viterbi解码等(End-to-end 802.11a physical layer * All mandatory and optional data rates: 6, 9, 12, 18, 24, 36, 48, and 54 Mb/s * BPSK, QPSK, 16-QAM, 64-QAM modulations * Forwa