Title :
DSP-based ionospheric radio-link using DS-CDMA and on-line channel estimation
Author :
Pijoan, J.L. ; Socoro, J.C. ; Moran, J.A. ; Tarres, F.
Author_Institution :
Dept. of Commun. & Signal Theory, Ramon Llull Univ., Barcelona, Spain
Abstract :
In this paper, a new blind multiuser detection algorithm is presented. It can both cancel multiuser interference and estimate the multipath channel response in a blind way. The method has been specially conceived for low coherence bandwidth channels such as the ionospheric channel and exhibits very low computational requirements. Real-time measurements from a fully digital HF radio-link are presented that confirm the reliability of the method for the ionospheric channel.
Keywords :
code division multiple access; digital radio; estimation theory; interference suppression; multipath channels; multiuser channels; radio links; radio receivers; radiofrequency interference; reliability; signal detection; spread spectrum communication; DS-CDMA; DSP-based ionospheric radio-link; blind multiuser detection algorithm; computational requirements; digital HF radio-link; ionospheric channel; low coherence bandwidth channels; multipath channel response; multiuser interference; on-line channel estimation; real-time measurements; reliability; Bandwidth; Channel estimation; Coherence; Fading; Interference cancellation; Multiaccess communication; Multipath channels; Multiuser detection; Narrowband; Testing;
Conference_Titel :
Electrotechnical Conference, 2000. MELECON 2000. 10th Mediterranean
Print_ISBN :
0-7803-6290-X
DOI :
10.1109/MELCON.2000.880069
