Title :
Performance of an RCPC-coded OFDM-based digital audio broadcasting (DAB) system
Author :
Hoeher, P. ; Hagenauer, J. ; Offer, E. ; Rapp, Ch ; Schulze, H.
Author_Institution :
German Aerosp. Res., Establ., Oberpfaffenhofen, Germany
Abstract :
A system proposal for DAB is investigated. The kernel is orthogonal frequency division multiplexing (OFDM) with 4-DPSK (differential phase shift keying) modulation, rectangular pulse-shaping, and a guard interval to reject multipath distortions. Emphasis is on the use of source-adapted channel coding with rate-compatible punctured convolutional (RCPC) codes. Based on analytical and simulated BER (bit error rate) curves for several propagation conditions and on preliminary source significance information (SSI), a static code design with unequal error protection (UEP) is presented that also takes auxiliary data services into account. The gain due to UEP is on the order of 8dB in signal power or 25% in bandwidth
Keywords :
error correction codes; frequency division multiplexing; phase shift keying; radio broadcasting; 4-DPSK; BER codes; DAB; OFDM; auxiliary data services; bit error rate; differential phase shift keying; digital audio broadcasting; guard interval; orthogonal frequency division multiplexing; preliminary source significance information; propagation conditions; rate compatible punctured convolutional codes; rectangular pulse-shaping; source-adapted channel coding; static code design; unequal error protection; Bit error rate; Channel coding; Differential phase shift keying; Digital audio broadcasting; Kernel; OFDM modulation; Phase distortion; Phase modulation; Proposals; Pulse modulation;
Conference_Titel :
Global Telecommunications Conference, 1991. GLOBECOM '91. 'Countdown to the New Millennium. Featuring a Mini-Theme on: Personal Communications Services
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-87942-697-7
DOI :
10.1109/GLOCOM.1991.188352
