Title :
Turbo codes for hybrid in band on channel digital audio broadcasting systems
Author :
Maerkle, R. ; Sundberg, C.-E.W.
Abstract :
We investigate the performance of rate ½ turbo codes for multipath fading channels in a hybrid in band on channel (HIBOC) digital audio broadcasting (DAB) system in the FM band. An orthogonal frequency division multiplexing (OFDM) modem with differential quadrature phase shift keying (DQPSK) modulation is used. We show by means of simulations that for a variety of multipath fading profiles and vehicle speeds, we obtain a channel coding gain of about 3 dB in channel signal-to-noise ratio (SNR) compared to a conventional system with a memory 6 convolutional code with Viterbi decoding
Keywords :
OFDM modulation; Viterbi decoding; channel coding; convolutional codes; differential phase shift keying; digital audio broadcasting; fading channels; interleaved codes; mobile radio; multipath channels; quadrature phase shift keying; turbo codes; DQPSK; FM band; OFDM; SNR; Viterbi decoding; channel coding gain; convolutional code; differential quadrature phase shift keying; digital audio broadcasting; fading channels; hybrid in band on channel DAB; internal interleaver; mobile receivers; multipath channels; orthogonal frequency division multiplexing; signal-to-noise ratio; stationary receivers; turbo codes; vehicle speed; Channel coding; Differential quadrature phase shift keying; Digital audio broadcasting; Fading; Frequency modulation; Modems; OFDM modulation; Phase modulation; Turbo codes; Vehicles;
Conference_Titel :
Global Telecommunications Conference, 2001. GLOBECOM '01. IEEE
Conference_Location :
San Antonio, TX
Print_ISBN :
0-7803-7206-9
DOI :
10.1109/GLOCOM.2001.965557
