Title :
Performance of turbo codes with SOVA algorithm in DSSS over channels with non-white additive Gaussian noise
Author_Institution :
Mil. Commun. Inst., Zegrze, Poland
Abstract :
In the paper we present the performance of turbo codes with the SOVA decoder in DSSS over non-white channels. It has been shown that its performance is similar to that achieved in AWGN. Moreover, in order to increase its performance a double-matched reception has been employed. Thereby, the structure of a receiver is now matched not only to the useful signal, as it is in all classical receivers, but also to non-white noise. In comparison with a single-matched detection the obtained gains reach a dozen or so dB depending on the entropy of noise.
Keywords :
AWGN channels; channel coding; decoding; entropy; receivers; spread spectrum communication; turbo codes; DSSS; SOVA algorithm; SOVA decoder; double-matched reception; noise entropy; nonwhite additive Gaussian noise channels; performance; receivers; turbo codes; Additive noise; Additive white noise; Filters; Gaussian noise; Military communication; Noise shaping; RF signals; Spread spectrum communication; Transfer functions; Turbo codes;
Conference_Titel :
Telecommunications, 2005. advanced industrial conference on telecommunications/service assurance with partial and intermittent resources conference/e-learning on telecommunications workshop. aict/sapir/elete 2005. proceedings
Print_ISBN :
0-7695-2388-9
DOI :
10.1109/AICT.2005.72
