Rate-1/2 convolutional codes over ring Z/sub 8/ for 8-PSK signals

摘要

New rate-1/2 systematic linear convolutional codes over ring Z/sub 8/ for 8-PSK signals giving 1.5 data bits per modulation signal symbol of spectral efficiency on bandlimited additive white Gaussian noise channels are reported. These codes give good coding gains and they are suitable for use in many practical bandlimited channels.