Cognitive HF – New Perspectives to Use the High Frequency Band
Teemu Vanninen, Toni Linden, Matti Raustia, Harri Saarnisaari · 2014
The HF band, located in between 3 – 30 MHz, can offer single hop communication channels over a very long distances – even up to around the world. Presumably, this advantage takes its toll which shows as a quite bad behaving communication channel. Traditionally the HF is seen primarily as a solution