Space-time trellis encoder/decoder for QPSK modulation 2 bits per second per Hertz- Space-time trellis encoder/decoder for QPSK modulation 2 bits per second per Hertz

this the encoder program for the encoding of trellis coded modulation in matlab.-this is the encoder program for the encoding of trellis coded modulation in matlab.

this the state encoder anfd decoder for trellis coded modulation

This function implememts Soft Output Viterbi Algorithm in trace back mode Input: rec_s: scaled received bits. rec_s(k) = 0.5 * L_c(k) * y(k) L_c = 4 * a * Es/No, reliability value of the channel y: received bits g: encoder generato

采用卷积编码与维特比译码对通信过程进行了仿真，展示了卷积码的差错校正容量，调制方式采用QPSK-This demo shows how to use a convolutional encoder and decoder in a simulation of a communications link. It also shows the error correcting capability of convolutional codes. This demonstrates the con