/pdf/dab-implementation-in-sdr-87ytr1dwls.pdf

DAB implementation in SDR

Radio broadcasting technology in this era of compact disc is expected to deliver high quality audio programmes in mobile environment. The Eureka-147 Digital Audio Broadcasting (DAB) system is a new digital radio technology for broadcasting radio stations that provides high-quality audio and data services to both fixed and mobile receivers and employs coded OFDM technology. This paper presents the bit error rate (BER) performance analysis of DAB system with different channel protection mechanisms in AWGN, Rayleigh, and Rice fading channels. The result shows that addition of protection level technique improves the system performance in mobile environment.

Performance prediction of OFDM based Digital Audio Broadcasting system using channel protection mechanisms

Radio broadcasting technology in this era of compact disc is expected to deliver high quality audio programmes in mobile environment. The Eureka-147 Digital Audio Broadcasting (DAB) system with coded OFDM technology accomplish this demand by making receivers highly robust against effects of multipath fading environment. In this paper, we have analyzed the performance of DAB system conforming to the parameters established by the ETSI (EN 300 401) using time and frequency interleaving, concatenated Bose-Chaudhuri-Hocquenghem coding and convolutional coding method in different transmission channels. The results show that concatenated channel coding improves the system performance compared to convolutional coding.

http://dspace.nitrkl.ac.in:8080/dspace/bitstream/2080/1336/1/arun-sarat-dab-icmens2010.pdf

Performance Analysis of OFDM Based DAB Systems Using Concatenated Coding Technique

A receiver contains a demodulator system that can extract digital data from wireless radio frequency signal. The digital data contains at least three sets of compressed digital audio data each corresponding to an audio program. At least two of the three sets of compressed digital audio data are stored in storage. Each of the stored sets of compressed digital data is associated with a set of index data. The receiver contains an output device allowing a user to perceive the sets of index data. The receiver also contains a digital to analog converter. If a user selects one of the sets of compressed digital audio data, the selected compressed digital audio data is decompressed and converted to analog audio data.

Receiver storage system for audio program

Radio broadcasting technology has evolved rapidly over the last few years due to ever increasing demands for as high quality sound services with ancillary data transmission in mobile environment. The Eureka-147 Digital Audio Broadcasting (DAB) system accomplish this by use of coded OFDM technology that makes the receivers highly robust against the channel multipath effects. This paper presents the performance analysis of Eureka-147 DAB system conforming to the parameters established by the ETSI (EN 300 401) using frequency interleaving and Forward Error Correction (FEC) with block coding techniques in different transmission channels. The result shows that addition of block coding techniques improves the system performance in mobile environment.

Performance prediction of OFDM based DAB system using block coding techniques

Audio in digital radio : the eureka 147 dab system

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Audio in digital radio : the eureka 147 dab system