Open AccessGuided Scrambling As a Peak to Average Power Ratio Reduction Technique for Digital Video Broadcasting-Terrestrial 2
Author(s) -
V. Jeewa
Publication year - 2017
Publication title -
journal of the institute of engineers, malaysia
Language(s) - English
Resource type - Journals
ISSN - 0126-513X
DOI - 10.54552/v78i2.9
Subject(s) - scrambling , clipping (morphology) , computer science , orthogonal frequency division multiplexing , digital terrestrial television , transmitter , reduction (mathematics) , electronic engineering , telecommunications , algorithm , mathematics , channel (broadcasting) , digital television , engineering , linguistics , philosophy , geometry
Analogue Broadcast Transmitters are being replaced by Digital Transmitters based on standards using Orthogonal Frequency Division Multiplex (OFDM). However, high Peak to Average Power Ratio (PAPR) is limiting the performance of digital transmitters and several techniques have been proposed to mitigate it including amplitude clipping, coding, multiple signal representation techniques, selected mapping or partial transmit sequences. As a general rule, these techniques achieve PAPR reduction at the expense of an increase in transmitted signal power, an increase in BER, a higher loss in data rate, or an increase in computational complexity. Therefore, an alternative technique using Guided Scrambling is presented here.