Error Control Through Coding. Volume Vii. Adaptive Error Control Systems

摘要

The principal conclusions drawn from this study are: (1) The design of a system, on a full-duplex link, capable of adapting block length can be achieved at moderate cost. (2) On the HF links tested the gains with this system were meager. It is anticipated, although not proven, that performance will be better on land lines. (3) For combating Rayleigh fading variable block length has more potential than single error correction with fixed block length; however, if feasible, variable bit rate offers still more in terms of average and low percentile efficiency. (Author)