Title :
Wideband channel characteristics and short spread-spectrum HF links
Author_Institution :
Adv. Technol. Centres, BAE Syst., Gt. Baddow, UK
Abstract :
The feasibility of sustaining very wide bandwidth (~ 1 MHz) communications on short surface wave and skywave links is critically dependant on prevailing channel conditions. In this paper the main results of a review of the HF channel, external noise and interference characteristics are summarised. A wideband-channel model is proposed for use in the simulation of direct sequence spread spectrum (DS-SS) radio system performance. Potential difficulties in spectrum sharing with existing narrowband systems are also considered
Keywords :
broadband networks; pseudonoise codes; radio links; radiofrequency interference; spread spectrum communication; telecommunication channels; 1 MHz; DS-SS; channel conditions; direct sequence spread spectrum; external noise; interference characteristics; narrowband systems; short spread-spectrum HF links; skywave link; spectrum sharing; surface wave link; very wide bandwidth communications; wideband channel characteristics; wideband-channel model;
Conference_Titel :
HF Radio Systems and Techniques, 2000. Eighth International Conference on (IEE Conf. Publ. No. 474)
Conference_Location :
Guildford
Print_ISBN :
0-85296-727-6
DOI :
10.1049/cp:20000193
