Title :
A DS-SS signaling based system proposal for low SNR HF digital communications
Author :
Deumal, M. ; Vilella, C. ; Socoro, J.C. ; Alsina, R.M. ; Pijoan, J.L.
Author_Institution :
Communications and Signal Theory Department, E.T.S.E.E.I. La Salle, Ramon Llull University, Barcelona, Spain
Abstract :
In this paper a DS-SS signaling based physical layer for low SNR links is presented. This technique is able to increase the spectral efficiency by scarcely decreasing the BER performance at the expense of an increased receiver complexity. Moreover, accurate channel estimation is not required. Preliminary transmissions were done in a HF link between the Antarctica and Spain. Four setups with different transmission bandwidths and data rates have been evaluated. Up to 55.7% error free transmissions were achieved by using a transmission bandwidth of 5156Hz, a coded bit rate of 57bps and a transmission power of 200W in a 12700Km ionospheric link.
Keywords :
DS-SS signaling; HF digital communications;
Conference_Titel :
Ionospheric Radio Systems and Techniques, 2006. IRST 2006. 10th IET International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-86341-659-4
