Comportamiento de un protocolo ARQ en canal de hf a 2400 bps

Abstract

Today HF communication systems rely on the concept of adaptation. In fact, the benefits of exploiting the time/frequency variant capacity of the HF channel have been reported elsewhere. Adaptive systems can play an important role in any one of the f irst three layers of a communication system. This paper is focused on the description of the bases of a level-2 protocol aimed to incorporate such adaptive capacity .